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DPhyDecoderHSCtl User`s Manual

1. The cursor panel supports the following operations for setting cursor positions and scrolling the listing e Left clicking and dragging a cursor square moves the cursor position While dragging the current cursor position Sample is displayed in a pop up box Page 34 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 e If the Shift key is pressed and held while dragging the listing will scroll with the cursor position otherwise the listing will not scroll e Ifthe Control key is pressed and held while dragging the cursor will scroll more slowly allowing for finer control e Double clicking a cursor in the panel scrolls the listing window to the cursor position e Double clicking in the cursor panel not on a cursor scrolls the listing window to the position clicked 4 3 4 Diassembly Control Panel The Diassembly Control Panel is located at the bottom part of the disassembly window and has six tabs Options Filter Search Video Packets and lt Minimize gt The functions and controls provided by each tab are described in the following sections 4 3 4 1 Options Tab Page The Options tab contains controls for configuring acquisition decoding and disassembly display 4 3 4 1 1 Acquisition Options There are three user controls for acquisition They are described below Prefill Pct up down control that sets the trigger position relative to the acquisition The value is an inte
2. 3 4 Triggering Triggering is the process of completing acquisition based on trigger criteria specified by the user Once the specified criteria are met the instrument fills up memory with data records Note that even after acquisition has started trigger criteria continues to be evaluated and the result is associated with data records for subsequent search and display Thus while there is only one trigger record i e one record that triggered acquisition there is no restriction on the number of records that may have their trigger flag set The term Prefill is used to describe records in an acquisition preceding the trigger record Often users want to see bus activity leading up to the trigger condition as much as activity that follows it A user control for prefill is available allowing 5 to 95 of the acquisition to precede the trigger record In general the prefill requirement must be met before a record satisfying the trigger criteria is considered This means that one or more records with their trigger bit set may not trigger acquisition In some cases this is not desirable as the trigger condition only occurs once in a test To allow successful acquisition in this case an option is provided Allow Trigger Before Prefill that ignores the prefill requirement for triggering if necessary In the DPhy Decoder HS various trigger modes are supported Simple modes such as triggering Immediately or on an error condi
3. Acquisition Options Disassembly Options Prefill Pet jo zl Id Show LP HS Signaling RAW Decode Fmt Collapse HSZero HSTrail 3D Display Orientation Host Dev Memory Depth zmes dl Ml Disable Disassembly i Id Highlight Filter Gaps WER Packed RGB 888 2 Mnem H Allow Trigger Before Prefil Id Show Video Payload As Pixels WriteMem Pixels Per Line i Show Pkt Fields On Payload Bytes Iv Interpret WrteMem As Video Data H Use File PPS El obs ref dsc Grid Font Size Figure 5 Disassembly Options The remaining controls in the Options window are protocol related options They are Toggle Host Dev DSI button that toggles the bus ownership flag i e Host or Device for the first record in the acquired trace This will rarely be necessary and only if acquisition was made when the instrument has incorrect bus ownership state which should only happen when invalid bus activity confused the instrument or in other atypical cases Clicking this button will affect how the entire acquisition is disassembled as DataType values in DSI represent different packet types for the host versus a peripheral Mnem Cfg CSI amp DSI button that brings up the Mnemonic Configuration dialog allowing the user to select fields to display with the mnemonic in the listing when its mnemonic view setting allows Show LP HS Signaling CSI amp DSI check box that selects whether low level LP and HS signaling records are displayed When enabled
4. Suite 106 Beaverton Oregon 97005 USA information Omovingpixel com http www movingpixel com The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 1 Overview The Moving Pixel Company DPhy Decoder HS is an instrument designed to monitor and decode traffic on up to 4 MIPI DPhy lanes running up to 2 5 Gbps The instrument operates as stand alone acquisition hardware for DPhy bus activity and is used in conjunction with controlling software that also provides DSI CSI 2 and DPhy protocol decode of acquired data The main functions of the DPhy Decoder HS hardware are to Input and convert serial HS packet data to bytes Input and convert encoded LPDT and escape mode data to bytes Process DPhy data and package into records Provide DPhy DSI and CSI 2 protocol and state triggering for acquisition Store records into memory for acquisition Provide link activity indicators status and statistics including ECC error CRC error and HS burst error events The DPhy Decoder is controlled from a Windows application called DPhyDecoderHSCtl which communicates with the Decoder via a USB connection Using this application the user can monitor DPhy bus activity select modes of operation configure the triggering and functions of the instrument and initiate the acquisition and capture of DPhy traffic In addition DPhyDecoderHSCtl provides post processing and protocol disassembly of acquired da
5. comments are ignored by the parser e Predicate terms are interpreted as a sum of products equation and so AND has higher precedence than OR Thus predicates that describe the equation a AND b OR c AND d is parsed a AND b OR c AND d e White space is required between the relational operator the value the AND OR and delimiters and the string e Mappings are evaluated in order so subsequent predicate equations do not need to exclude values that would have already satisfied prior mappings e Ifnot mapping qualifies for a value a string with is displayed To avoid this a default mapping can be appended to the end of the symbol file with the catch all predicate gt 0 4 3 2 2 Field Descriptions 4 3 2 2 1 Mnem Field The mnemonic field is a symbolic only field that conveys the record type The string displayed in this field can be customized to tabulate and show certain other fields in the record and their values This behavior is configured using the Mnem Cfg button on the Options tab of the disassembly control panel Using this feature is simply another way to view fields in a record using the mnemonic column to display the field rather than using a separate column in the listing 4 3 2 2 2 Sample Field The Sample field represents a record s ordinal number in the listing i e essentially the disassembly record number Gaps in the sample number generally indicate that there
6. determine which records should not be displayed i e if the filter equation evaluates true for a record it is not displayed e Show Radio Button enables record filtering and uses the filter equation to determine which records should be displayed i e if the filter equation evaluates true for a record it is displayed e Disable Radio Button disables record filtering e Clear Button clears all terms in the filter term grid e Apply Button Applies any changes to the filter criteria updating the disassembly listing The Mnemonic Type list box and the Filter Term grid together define the overall filter equation The list box defines a set of mnemonic types that qualify records for further evaluation by the filter terms That is records that satisfy the filter equation must have at least one lane with a mnemonic type than is checked in the list box So for example at the extremes if no types are checked the filter equation will evaluate false for all records And if all types are checked the filter equation for each record will evaluate solely to the result from the Filter Term grid The Filter Term grid defines zero or more Boolean terms one per row which compare a record field to a constant value Terms are logically connected via AND or OR operations to build a Sum Of Products equation used in the overall filter equation The AND operation takes precedence over the OR operation so A AND B OR C AND Dis evaluated as A A
7. disassembly context menu or pressing Alt P e Next Search Button scrolls the listing to the next record matching the search criteria Alternate ways of performing this function is to select Next Search from the disassembly context menu or pressing Ctl S e Prev Search Button scrolls the listing to the previous record matching the search criteria Alternate ways of invoking this function is the select Prev Search from the disassembly context menu or pressing Alt S e Search Term Grid allows the user to define predicate terms of the search equation This grid operates identically to the Filter Term grid described in the previous section e Search Only Pkt Hdrs when checked restricts searches to only the first byte of a packet which may improve search update speed greatly depending on other view settings Generally most user search criteria are intended for packet level search anyway e Clear Button clears and filter term grid e Apply Button Applies changes to the search term grid updating the disassembly listing and readouts To search for and highlight records that satisfy a particular predicate equation search criteria can be entered in to the search term grid identically to the filter term grid The search equation is built from terms defined and applied to each record in the listing when the Apply button is clicked If the Highlight Selected checkbox is checked records that satisfy the search equation
8. through disassembly of a long packet where the header byte has scrolled off the screen On the other hand when searching usually the user doesn t want searches on these fields to hit on other than the first packet byte Interpret WriteMem As Video Data DSI check box that indicates that WriteMemoryStart and WriteMemoryContinue commands should be interpreted as containing video data WriteMemoryStart packets always start a new frame The data format and line length are set by WriteMem Pixel Fmt and WriteMem Pixels Per Line respectively Note that if this option is checked and both WriteMemory and Packed Pixel packets are present in the trace only WriteMemory frame data will be catalogued in the Video tab RAW Decode Fmt CSI drop down control that indicates the format to use for decoding RAW video packets Bayer GRBG Decodes lines 1 3 5 as alternating green red pixels and lines 2 4 6 as alternating blue green pixels Bayer RGGB Decodes lines 1 3 5 as alternating red green pixels and lines 2 4 6 as alternating green blue pixels Bayer BGGR Decodes lines 1 3 5 as alternating blue green pixels and lines 2 4 6 as alternating green red pixels Bayer GBRG Decodes lines 1 3 5 as alternating green blue pixels and lines 2 4 6 as alternating red green pixels Monochrome Decodes raw pixels as luminence values 10 This discussion assumes that the mnemonic view of
9. 20h 32 decimal The LSB corresponds to the earlier byte in the packet For example if the mask were set to FFOOh with ByteOff 4 the resulting masked value would have packet byte 5 in the MSB and zero in the LSB Op drop down control to select the predicate comparison operation All logical comparisons are supported 1 e gt gt lt lt Value text box to set the term comparison value Values are parsed as 16 bit decimal numbers unless appended with an h in which case they are parsed as 16 bit hexadecimal i e 20h 32 decimal As with the mask value the LSB represents the earlier packet byte The final controls used for stage two triggering are the trigger equation specification itself and the default button Trigger Equation text box to specify how term predicates should be combined in a Boolean equation to determine the final trigger state Terms predicates are identified using the numbers 1 through 6 The amp and I symbols for AND and OR operations and parentheses can be used to set precedence e g 1 2 3 amp 4 Default button to reset all term controls and the trigger equation to their default The default setting is for all term controls to be Unused and the trigger equation to be 16283648546 4 2 2 2 LP Signal State Triggering When triggering based on LP Signal State the packet field controls are disabled and triggering is solely de
10. However there may be situations where non conforming traffic patterns cause incorrect or erratic clock frequency detection In these cases the user should disable Auto HS Freq and manually enter the HS Clk Rate When this mode is enabled and the detected bit rate changes more than 10 this causes software to automatically resynchronize the hardware using the new bit rate In this case there may be a brief period when errors are detected before the frequency and sampling phase change is completed Thus as a convenience all statistics are reset when a significant clock change is detected HS Clk Rate text box to indicate the detected clock lane bit rate during HS bursts This value is used to set the sampling phase of the data relative to the clock on input Its accuracy becomes more important with increasing frequency given the smaller valid sampling windows Generally if possible it is best to use auto detection via Auto HS Freq to set this value HS Clk Adjust up down control to adjust fine delay timing on the incoming HS Clk for high frequency acquisitions This timing control adjusts the clock relative to the ideal quadrature setting for acquisition and normally this value should thus be set to zero However modest adjustments are sometimes required depending on less than ideal acquisition conditions depending on input signal integrity non standard voltages cabling noise or timing skew on the bus Cal bu
11. M tab tite pr WW Tab Hilte FG oK Cancel Defaults Figure 13 Color Dialog 4 8 Menus This section e File O O O outlines the menu commands available in DPhyDecoderHSCtl Load Cfg loads a previously saved configuration file overwriting the current configuration Save Cfg saves the current configuration and acquired data to a file Save Cfg As same as the Save Cfg command above except a dialog is provided to browse and enter a new configuration file name lt recent files gt a list of the four most recent configuration files Selecting one of these file names loads the file Clear Recent File List clears the most recent file list Exit exits the application e Connect O Connect to DPhy Decoder HS brings up the Connect dialog see section 4 1 Page 52 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 o Disconnect From DPhy Decoder HS disconnects from the instrument putting the application in offline mode o Enable RPC if checked enables user applications to communicate with the DPhyDecoderHSCtl software via remote procedure calls RPC to control the instrument The DPhyDecoderHSCtIRPC DLL provides the RPC interface to user programs for this purpose o Update Firmware brings up the Firmware Update dialog to reprogram the DPhy Decoder HS firmware see section 4 5 Config o Define Custom Commands b
12. are records not displayed in the current view though there are some sample numbers that are never displayed the values are used internally but not meant for display 4 3 2 2 3 Disp Field The Disp field is a column used for showing the mnemonic view state of packet headers A packet from a disassembly point of view includes not only protocol packets but escape packets and other data groupings such as a skew calibration burst error data and burst data in when sync detection is disabled called HS Raw packets A packet header from a disassembly point of view is the first record in the disassembly associated with a packet This Disp field is blank for non packet byte records but contains one of three indicators for a record containing a packet header or These indicators correspond to Page 26 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 39 cs a mnemonic view state of closed mnem fields mnem and packet fields respectively When clicked the mnemonic view state of the packet cycles to the next state see section 4 3 2 5 Note the mnemonic view state of all packets can be forced by clicking in the second row of the Disp column which is usually the Radix row but for the Disp column contains and indicators that can be clicked to cycle the global mnemonic view state 4 3 2 2 4 Time Field The Time field
13. commas for each disassembly line A file dialog is provided to enter a file name to use The CSV content is output exactly as shown in the disassembly window based on the current settings using the user arranged column order and layout File gt Export Selected Lines to Configuration File writes selected lines to a configuration file which can then be subsequently loaded to show a truncated disassembly from the original acquisition This option is used to reduce saved configuration file sizes and keep only relevant portions of the acquisition Note that the selected range is extended if necessary to include a preceding and succeeding LP segment per disassembler requirements When this menu option is selected a file dialog is provided to enter a file name to use The configuration file created is identical to a normal user saved configuration file except having truncated acquisition data Edit gt Select All selects all lines in the disassembly Edit gt Trim Disassembly To Selected Lines truncates acquired data to the selected lines where the selected range is extended if necessary to include a preceding and succeeding LP segment per disassembler requirements Acquisition data outside the extended range is discarded Page 48 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 When this menu option is selected a message box is displayed asking the user to confirm the truncation operatio
14. criteria In the case of packet records the mnemonic view state determines whether only the first packet byte is shown or all packet bytes are shown see next section 4 3 2 5 Mnemonic View State Mnemonic view state is an attribute of packets that affects how the packet is displayed in the disassembly listing Its setting determines whether only the first byte of a packet is Page 30 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 displayed or all bytes of the packet are displayed and whether the user specified mnemonic fields associated with the packet are displayed There are three mnemonic view states Closed Only the first packet byte is displayed Mnem Fields Only the first packet byte plus its mnemonic fields are displayed Mnemonic fields are fields selected by the user to be displayed with the mnemonic via Mnem Cfg button All packet bytes are displayed Mnemonic fields are also shown for the first packet byte Mnem and Packet Fields The mnemonic view state of a packet is shown in the Disp field in the record using the indicators or corresponding to the states in order in the table above To cycle an individual packet s mnemonic view state click on the indicator in the Disp column To cycle all packet mnemonic view states at once click the indicator in the second row of the Disp Column i e Radix row 4 3 2 6 C
15. eg EE ES 22 4 3 2 EE ET da cd 23 4 3 2 1 Column and Row Manpulapon ceessceescecesneeceeeeeceeneecseneeeenaeees 23 e EN A A E 23 SE eerste ROWS tail 23 4 3 2 1 3 Measuring Time Between Event ooocccnnnncccnoncccnnncconononononcncnnnaninns 24 ES 2 ds Add Columi E EE 24 4 3 2 1 5 Remove Colummntst R NS 24 4 3 2 1 6 Reordering Columns gsis ccscctisbcccesansesasnssotsaitesnsseesenscscanaaonnaneasbeeane 24 4 3 2 1 7 Setting Column MEIER cossgcasius seve doesiegrcensdsvcbaysiesscceategeeentvastudetuwen 24 Table of Contents Page ii The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 4 3 2 1 8 Setting the Field Rida 24 4 3 2 1 9 Setting the Time Field Reference aiii 25 4 3 2 1 10 Defining and Using a Symbol Pie 25 O e A 26 A O A Ee 26 4 3 2 2 2 Sample Field EE 26 4 3 2 A c ens ssacenst acide cadans satay tats a Hane aesap a aaa iait 26 4322A PME Pie DEE 2T 4 3223 Param Eege Gees 27 43220 LP SQ Fieldin ti EE 27 43224 Pkten EE 28 Ee TEE 28 A Dalal ype Viele E 28 432210 DESCmd Field isa 28 BPD 2 AL EE 28 BSD 2 O E AA 28 E Kn E E EE 29 ABD E Frame Pie EEN 29 AB 2215 Acthine Pic nia 29 Sic 2 ET A IA 29 Set EE Gah T es eee Ee 29 AS22418 BusOwn Biel icon illa 29 AS22719 A E A 29 A D2 ot lt A AO 30 4 3 2 4 Disassembly Mut EE sderde d didas 30 43 23 Mnemonic View altiro edd snaleadiessontenss 30 45 2 0 Colimn Comex Meni E 31 4 3 2 7 Radix Context Menu Summary deeg Ee 33 4 3 3 C
16. followed by field data starting with the third row The following sections outline field or column related functions 4 3 2 1 1 Selecting Columns Similarly single columns can be selected by right clicking on the column header i e the field name of a column A contiguous region of columns can be selected by first selecting a column then selecting a second column while holding the shift key down In addition a discontinuous set of columns can be selected by clicking while holding the control key down When a set of columns is selected certain options in the column context menu will apply to each column e g Delete Columns Restore Select Column Width s 4 3 2 1 2 Selecting Rows Single rows can be selected by right clicking on the row header 1 e the Sample field of a record A contiguous region of rows can be selected by first selecting a row then selecting a second later row while holding the shift key down Once selected rows can by copied to the clipboard with Ctrl C or the Copy Selected Rows menu option in the 7 These concepts are described further later in this section Page 23 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Edit menu The total time occupied by the selected rows is shown in the Cursor Status Display at the top of the disassembly window associated with the field text Sel 4 3 2 1 3 Measuring Time Between Events There are two methods to measure
17. represents displays a record s time stamp which the user may choose to display relative to a number of time references e g start of trace cursor or trigger position etc Please see section 4 3 2 1 9 for more information By default the time stamp is displayed with a radix of Symbolic Default which displays the time as a string e g 1 300 ns but alternatively it may be displayed as a numeric value hex or decimal which converts time to an integer number of picoseconds This allows the time field to be used in search and filter criteria for example in restricting record display or search to a limited time range 4 3 2 2 5 Param Fields In the MIPI CSI 2 and DSI many packet types are associated with one two or three named parameter fields as opposed to larger blocks of generic data such as pixel data blanking bytes LUT tables etc The disassembly window organizes these packet parameters into the fields Param1 Param2 and Param3 For example the Generic Short Write packet can have 0 1 or 2 parameters For zero parameter writes all Param fields will have dashes displayed in them For one parameter writes Param1 will display the value of the single byte parameter And for two parameter writes Param1 and Param will display the single byte parameters Another example is the DCS Set Column Address command that has two 16 bit parameters In this case Param1 and Param2
18. s Manual Rev 1 1 6 25 15 has a keyboard shortcut sequence that begins with Ctl X For example if you right click on a cell in the PktLen field that has a value of 4 and select Exclude All But Same Val the filter list box will check all packet types and enter the term IF PktLen 00004 in the filter grid Then the Show radio button will be selected and then the disassembly will update Figure 6 shows the results of this operation for a video capture In particular filtering has eliminated all packets except for VSync Start In addition additional filter criteria limits records to those with the Frame between 4 and 15 Note that rows have a double line dividing them This is an optional highlighting method to indicate there are packets in the view that have been filtered This highlight is enabled by checking Highlight Filter Gaps in the Options tab DPhy Dissassembly File Edit Curs1 796 4 ns Curs2 15 0ns Delta 781 3 ns Sample Time Disp Mnem PktLen VC DataTyp D SymDef SymDef Dec Dec Hex fr _5 410585 ms Vsyne Stat 5 _0000s o or l Lee gt 1 489130 ms VSync Start e ________ 00004 oe Io _ coos _ Ca 1 489130 ms VSync Start 7 00004 o oe ok LL oo 4 4 aaa e Filter Search Video Packets lt Minimize gt Debug Filter Show Disable C DCS Read Request Figure 6 Filter Example Numeric field values are assumed to be i
19. the column content As seen in the figure DCS command categories are summarized as well as individual DCS packet types Note that totals encompass all packets including those that may be hidden from display via filter criteria In addition some packets count towards more than one category because some categories are summary categories In addition to the DCS categories other summary categories include Page 47 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Escape Packets Packets With CRC Error Packets With ECC Error Raw Packets Burst Error Packets 4 3 4 6 lt Minimize gt Tab The lt Minimze gt tab is used to collapse the Disassembly Control panel so that only the tab labels remain This allows the disassembly grid can be expanded using up almost all the area of the disassembly window The Disassembly Control panel re expands when any other tab is clicked 4 3 5 Menu Options This disassembly window has two menus File and Edit Menu options are described below File gt Export Selected Lines to PDF writes selected lines to a PDF file A file dialog is provided to enter a file name to use The PDF content is written exactly as shown in the disassembly window based on the current settings using the user arranged column order and layout File gt Export Selected Lines to CSV writes selected lines to a CSV file which outputs a line of disassembly grid values separated by
20. the disassembly shows all LP records and HS records including HS Zero HS Sync and HS Trail Page 36 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Collapse HSZero HSTrail CSI amp DSI check box that configures how HS Zero and HS Trail records are displayed When unchecked each HS Zero or HS Trail record represents one HS byte in an HS burst In this case a typical HS burst will display many HS Zero and HS Trail records On the other hand when this option is checked only one HS Zero and HS Trail is displayed per HS burst representing the entire HS Zero or HS Trail segment The time difference to the next record indicates how long the segment is Show Video Payload As Pixels CSI amp DSI check box that configures how payload data for video packets is displayed in the disassembly Without this option checked each payload byte is displayed one byte per record with no pixel decoding just as all other non video packets However with this option checked pixels are decoded and presented one pixel per record with actual color components values displayed Show Pkt Fields On Payload Bytes CSI amp DSI check box that configures whether the values of packet related fields are displayed for payload bytes in a packet For example fields such as Dk en VC DataType Frame ActLine etc are all packet fields Often it is useful to be able to see these fields when scrolling
21. the video packet is Mnem and Packet Fields Otherwise payload bytes are not visible Note that checking the option Search Only Pkt Hdrs on the search tab has an equivalent effect allowing only the first packet byte to qualify in searches Page 37 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 3D Display Orientation DSI drop down control that indicates the display orientation for viewing and saving 3D frames WriteMem Pixel Fmt DSI drop down control that indicates the pixel format to use when decoding WriteMemory commands as video data Options are Packed RGB 565 Packed RGB 121212 Packed RGB 666 Loose 20 bit YCbCr 422 Loose RGB 666 Packed 16 bit YCbCr 422 Packed RGB 888 Packed 24 bit YCbCr 422 Packed RGB 101010 Compressed DSC WriteMem Pixels Per Line DSI text box that indicates the number of pixels per line when decoding WriteMemory commands as video data Use File PPS DSI check box that determines what PPS is used for decoding compressed video frames If checked the PPS Filename is used to extract a PPS to use for decoding Otherwise PPS data from the Picture Parameter Set command is used PPS Filename DSI text box that names a file to use for extracting a PPS structure to use for decoding compressed video frames if Use File PPS is checked If the file extension is dsc then the DSC file is decoded to extr
22. time between two events in the disassembly The first is to use cursors as follows 1 Right click on a cell in the row associated with the first event and select Move Cursor Here 2 Right click on a cell in the row associated with the second event and select Move Cursor2 Here 3 The time between events is displayed in the Delta field of the Cursor Status Display at the top of the disassembly window The second method uses row selection as follows 1 Left click on the Sample cell in the row associated with the first event 2 Left click on the Sample cell in the row associated with the second event while holding down the Shift key 3 The time between events is displayed in the Sel field of the Cursor Status Display at the top of the disassembly window 4 3 2 1 4 Add Column s To add a column field in the listing grid right click on a column header and select the Add Column s menu option to bring up the Add Column dialog Check the desired column fields to display and click OK 4 3 2 1 5 Remove Column s To remove a column field in the listing grid select one or more columns and press the Delete key Alternatively right click in one of the selected column headers and choose Delete Column s If multiple columns are to be deleted the user is asked for confirmation 4 3 2 1 6 Reordering Columns To change the display order of a visible column right click and drag the column header to a new pos
23. tree view Collapse All collapses all the category nodes in the tree view Expand All expands all the category nodes in the tree view 4 2 2 1 2 Stage 2 Trigger Selection Stage two trigger selection defines the predicates and the trigger equation to be used for final trigger evaluation Six predicate terms are supported where each term targets a 16 bit field byte aligned starting at any starting byte offset between 0 10 This byte range allow all fields in short packets and long DCS packets with up to three 16 bit arguments to be fully supported Predicates are defined by masking the field and comparing it to a value After the predicate terms have been defined the user specifies a logical trigger equation that uses the field comparison results The following list describes the controls used for each term definition Field drop down control identifying some common pre defined field names Full use of this control is not required as most entries simply act as a preset for other controls in the term The user can always just select Custom to have full control over predicate definition see below Note that when defining a predicate the Field value should be selected first as it will overwrite the other term controls with appropriate values The first option is always Unused which sets the term controls to an always true comparison This allows it to be included in the default trigger equation all terms ANDed
24. whose equation evaluates true is displayed Predicate equations consist of one or more terms one term per line In multi term equations all but the last term in the equation are followed by AND or OR forming a Boolean equation from the terms Finally the last term of a predicate equation is followed by a colon and then the symbolic string to associate with the equation enclosed in quotes Each predicate term consists of a relational operator and a value Relational operators are gt EL gt lt and Values are interpreted as decimal unless an h or a b is appended to denote hexadecimal or binary respectively In addition for hex or binary values the character x may be used as a don t care digit if the first character is an x it represents don t care digits up to the width of the field For example the following lines define a predicate equation to detect values between 0x10 and 0x40 or if a value is odd Page 25 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 predicate equation gt 10h AND lt 40h OR xlb Range between 10h 40h or odd For values in the disassembly where this equation evaluates true the string Range between 10h 40h or odd will be displayed Some notes about symbol file usage e Note that blank lines and lines that begin with which can be used for
25. with no effect This selection is merely a convenience for readability because the trigger equation actually specifies whether a term is used or not and thus it is not necessary to set unused terms to this setting The second option in the field drop down control is always Custom which enables all the other term controls for arbitrary user settings Next follow common generic packet header fields i e VC DataType DataID WordCount ECC which initialize the byte offset and mask fields appropriately allowing the user to set the comparison operation and value for the term Finally additional options may be added to the Field control list varying with the selected packet type If a single packet type with known fields is selected in stage 1 then they are added as options here ByteOff drop down control to set the byte offset of the field For example a byte offset of 4 would specify the field to be the first two payload bytes of a packet Note in this case that all of the selected packets from stage 1 should be long packets as byte 4 is not defined for short packets Mask text box to set the mask value This value is treated as a 16 bit value and ANDed with the packet field before comparison with the term value Values are parsed as decimal unless appended with an h in which case they are parsed as Page 12 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 hexadecimal i e
26. Decoder HS Concepts 3 1 Data Records The main function of the DPhy Decoder HS hardware is to monitor up to four lanes of DPhy bus traffic and package data into records for acquisition and display All facets of bus communication are captured from lane LP signaling to escape mode sequences to LPDT and HS burst packets Depending on the current DPhy bus state one of two types of data records are internally generated and stored The exact details are not important to the user in normal use but a quick overview may be helpful to understanding other operational concepts Basically if one or more lanes are transmitting data in an HS burst then HS data records containing packed and acquired lane data are generated Otherwise LP data records are generated containing the LP state of all lanes and a timestamp Both record types have associated status that conveys auxiliary state information about the record including various header flags trigger information etc In general LP data records are output only when one or more lanes change LP state This significantly compresses the record set captured by the instrument and compacts the disassembly view As timestamps can indicate duration in a particular LP state duplicated records is not necessary There is one reason to duplicate records however In particular when bus activity is nearly idle then it is possible for the processing pipeline to stall and acquisition memory never to fill completely
27. HS burst 4 3 2 2 7 PktLen Field The PktLen field applies to records that show the first byte of a packet and indicates the total number of bytes associated with the packet including header and CRC fields 4 3 2 2 8 VC Field The VC field applies to records that show the first byte of a packet and displays the 2 bit virtual channel field of the packet Error Bookmark not defined 4 3 2 2 9 DataType Field The DataType field applies to records that contain the first byte of a packet and displays the 6 bit data type field of the packet Error Bookmark not defined 4 3 2 2 10 DCSCmd Field The DCSCmd field applies to records that contain the first packet byte of a DCS read request short write or long write and displays the 8 bit DCSCmd field 4 3 2 2 11 LP Fields There are five LP fields LPO LP1 LP2 LP3 and LPCIk These fields are present in all record types and reflect the LP lane state of lanes 0 3 and Clk respectively Note that unused lanes 1 e those exceeding than the maximum lane count setting 1 always show the LP11 state even if the lane input is disconnected A default SymDef mapping is provided to map field values of 0 3 to LPOO LPO1 LP10 and LP11 respectively 4 3 2 2 12 Data Fields There are four Data fields Data0 Data1 Data2 Data3 These fields show the data byte value per lane associated with the record HS records will display bytes in the Data fields asso
28. ND B OR C AND D The filter grid defines four columns as follows e Op defines how the term is logically connected to its predecessor either via AND or OR the first term which has no predecessor is fixed to show IF In addition to showing the logical operation associated with the term this field is a drop down control that provides options for adding or deleting terms For AND terms two options are available add another AND term to the product or delete the current AND term For IF or OR terms two additional options are available add another OR term to the equation or delete the current OR term which includes all AND terms of the product e Field drop down control to select a record field name e Comp drop down control to select a comparison operator lt lt gt gt e Value text box to enter a comparison value To define a filter equation begin with filling in the Field Comp and Value fields of the first term in the Filter Term grid Next select the Op drop down and select lt Insert OR term gt or lt Insert AND term gt to add a new term to the equation Fill in the fields of that term and continue inserting terms until the equation is fully defined Another method is to right click in the disassembly grid and select one of the menu options that begin with Exclude All But Alternatively each of these menu options Page 39 The Moving Pixel Company DPhyDecoderHSCtl User
29. SCtl User s Manual Rev 1 1 6 25 15 e Search Cnt displays the number of records and percentage of all acquired records that satisfy the search criteria Depending on the size of the trace the current view and the complexity of the filter and search equations performing a count of all search records in the trace can be time consuming An initial attempt to update the search count is made during disassembly update but with a Ya second timeout If the timeout occurs the Search Cnt is displayed as lt update gt indicating the user needs to click on the Update Srch Cnt button if to recomputed e Visible Cnt displays the number of records and percentage of all acquired records that are currently visible in the listing e Hidden Cnt displays the number of records and percentage of all acquired records that are currently hidden from view in the listing e Total Cnt displays the number of acquired records e Update Srch Cnt Button updates the Search Cnt readout if the initial attempt during disassembly update timed out see Search Cnt Readout description e Next Pkt Button scrolls to the next packet in the disassembly listing Alternate ways of performing this function is to select Next Packet from the disassembly context menu or pressing Ctl P e Prev Pkt Button scrolls to the previous packet in the disassembly listing Alternate ways of performing this function is to select Prev Packet from the
30. The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Sr h a F FIRII e fe DPhyDecoderHSCtl s K User s Manual Page i The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 T WV CIVIC E 1 Ke E 3 3 DPhy Decoder IS WEE 4 3 1 Data Records cid AA A A Aa 4 3 2 Escape TE 4 O 4 SZ A 5 4 Using DPhyDecoderHSCIH E 6 4 1 Connecting to the Instrument oooooooomsscssss 6 4 2 EI sdas so siesau be isas toso sostes tisie sesei sobs siss sasas 6 4 2 1 Configuration Controles ista cis 7 4 2 2 Trigger Tab Pace Controls dia 10 4 2 2 1 Packet Fields Triggering yscsc5 sicsissssecsvectanscdevesecsgueetensacdesnsvevennnevaenedeboners 11 AD LA Stage 1 Trigger Selec trinidad tsa 11 4 2 2 1 27 Stage 2 Trigger Selection OS 12 4 2 2 2 LP Signal State Treo 13 4 2 2 3 LP Sequence State TASA ii io 14 4 2 2 4 Escape Command Triggering oooccconcccnoncnononcnononanonnnnnnnnnccnnnnnnnnnncnnnnnnss 14 4 2 2 5 Skew Calibration Teens Eed 15 AD DO E TK 15 AQ2 7 ECC Error Tre gering lar dee deed REESEN 15 4 2 2 8 Burst Error AO eg 15 A229 Any Error Kate 15 4 2 2 10 Trigger Immediately E 15 4 2 3 Receive Tab Page COmrols EE 15 4 2 4 Status Controls miii ridad can a 17 A2 AT iaa 17 ADA EE re haere N a E 18 4 2 43 Statistics Controlan a 20 AD Disassembly Window ssesesoocssoccssccssccssocesocesoosesoecssccesocesoossoocessesssecesocesoosee 20 4 3 1 Run Stop Butt init
31. To handle this case a control is provided Idle Timeout to specify an idle timeout period that forces duplicate LP records into the processing pipeline 3 2 Escape Mode A mode commonly enabled in the application is called Escape Mode This mode translates and replaces LP records that convey escape packets with higher level protocol records for triggering and display If not enabled escape packet triggering and decoding including LPDT packets is not supported On the other hand disabling Escape Mode does allow low level LP edge transitions and timing to be seen if necessary for low level debugging 3 3 Receive Mode 1 Another mode option is called Receive Mode When enabled the instrument uses the SMA input connectors as lane inputs which are actively terminated according to the DPhy protocol during HS bursts In addition the user can specify a short response packet and return BTA or other LP signaling response to be transmitted when the DUT sends a Receive Mode and Escape Mode are not exclusive and can be independently enabled disabled Page 4 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 BTA When Receive Mode is not enabled the instrument operates in Monitor Mode also referred to as Sniff Mode using the instrument s solder down probe high impedance inputs In this mode no lane terminations or BTA response packet support are provided
32. act the PPS Otherwise the file is treated as a binary file and the first 128 bytes of the file are used as the PPS 4 3 4 2 Filter Tab Page The filter tab provides controls to filter or show records based on user criteria Specifically most controls in this tab help to define and apply a filter equation that is evaluated against each record to determine whether or not the record is displayed Note that the application of the filter or show result is only against the records that remain visible as allowed by other options Some controls such as the Filter Show and Disable radio buttons update the disassembly listing as soon as they are used On the other hand changes in the Mnemonic Type list box and the Filter Term grid do not take effect until the Apply button is clicked Here is an overview of the controls contained in the filter tab e Mnemonic Type List Box contains a list of all mnemonic types defined for the current view The user checks packet types and record types to use as criteria for the overall filter equation e Filter Term Grid defines predicate terms of the filter equation based on packet fields e Set All Button checks all mnemonic types in the list box e Clear All Button clears all selected mnemonic types in the list box Page 38 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 e Filter Radio Button enables record filtering and uses the filter equation to
33. are highlighted in the listing note that the search equation is only evaluated against unfiltered records The Next Search and Prev Search buttons can be used to scroll the listing to the next and previous qualifying records respectively Page 42 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 4 3 4 4 Video Tab Page The Video tab of the Disassembly Control panel contains information about video frames decoded from the trace see Figure 8 Fa SE VE CSE GEE Options Filter Search ug Video Packets lt Minimize gt Time 8332 ns 0 943 1932us 0 24323232ms 0 o o 3 9214532 ms 5 4105832 ms 6 8997132 ms 8 3888432 ms 0 9 8779732 ms 0 113671032 ms 0 12 8562332 ms 0 Figure 8 Video Tab In the video tab a grid control displays one line per decoded frame having the following fields Frame A frame number assigned to the frame Sel Click area to select the frame for saving An X is alternately displayed and cleared with each click Time Time stamp of first frame packet generally Frame Start or VSync Start packet VC Virtual channel Type Video format HAct Number of active pixels in a packet If variable packet lengths were found indicates the longest packet found VAct Number of active lines Complete Yes is displayed if Frame Start and Frame End CSI or VSync Start and a second VSync Start s
34. box separated by spaces controlling the LP signal states that are transmitted See rules above for values in list For example a read response packet could be sent using the string 12 00 1 e Auto LPDT Response check box that indicates the response is intended to be an LPDT command common case When enabled and a BTA is received on the bus the instrument will automatically send the BTA acknowledge sequence LP10 LP11 followed by the escape entry sequence and LPDT escape command before the user defined sequence is sent In addition following the user defined sequence a return BTA is automatically sent If Auto LPDT response is not checked the user must provide all LP signaling and spaced one hot data if desired e LP State Period up down control to set the duration of each transmitted LP state When used the value is truncated to the nearest 5 ns boundary Generally this should be set to the DUT s T LPX period for proper BTA handshaking e Custom Terminations check box to enable custom terminations settings When enabled controls to force terminations on off for each lane are enabled as well as controls to select Auto which enable normal HS burst termination behavior When the check box is disabled Auto termination mode is set for all lanes 4 2 4 Status Controls When connected to a DPhy Decoder HS instrument the status control section provides continuously updated statistics about bus activity
35. box that is transmitted whenever a BTA is received The following transmit rules are used e Values are always treated as hexadecimal e g 100 gt 0x100 e Values between 00 and FF inclusive are treated as hex bytes to send as Spaced One Hot coded LP transitions each byte requires 16 LP transitions e Values between 100 and 103 inclusive are treated as individual LP states to transmit with 100 corresponding to LPOO 101 corresponding to LPO1 etc e A value of 1 can be used in the ECC byte position for automatic calculation of the ECC value e The period of each LP state transmitted is determined by the LP State Period control setting truncated to the nearest 5 ns Page 16 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 e If Auto LPDT Response is checked pre and post signaling for an LPDT packet response will be automatically sent see Auto LPDT Response control description below 2 How the instrument terminates lanes SMA inputs only Basically the user can force each lane s termination on off or allow the instrument to turn on termination automatically during HS bursts as according to the DPhy specification see Custom Terminations control description below The following describes the receive mode controls e Response Msg text box describing the response sequence to transmit on lane O after receiving a BTA The user provides a list of integer values in the text
36. c Detect DCS Read Commands Lane Map bo x Zd Trig Out On Capture Only O Read Response Commands Packed Pixel Stream Commands HS Clk Rate Mbps Show Custom Commands Disasm Send HS Ck Adjust ps ERs ca Status ECC Eror LP Pkt Cnt 0 Sticky ECC Eror F HS Pkt Cnt 9914726 ECC Error Cnt Total Pkt Cnt 9914726 CRC Eror Short Pkt Cnt 3404392 Sticky CRC Error M Long Pkt Cnt 6510334 CRC Error Cnt Field Op Value Per Iter Tem SR Burst Error T HS Active Lanes 4 Tem2 Junused y Sticky Burst Err Meas HS Cik 2500 Mbps Temo ER Burst Error Cnt Bus Owner Host Tema S Trigger Recv Read Cnt 0 Tem5 Junused y Sticky Trigger Trigger Crt 0 Term6 Trigger Equation Trigger Type Ln0 Ln in2 Ln3 Ck Default immediately LP Activity ttt tt e te HS Activity ZE EE Send configuration successful 1801 v1 20 Moving Pixel Figure 2 DPhyDecoderHSCtl Main Window The main window is divided into four areas of controls configuration status trigger control and receive control the last two share a tabbed page The following sections describe each of these areas 4 2 1 Configuration Controls The section of the main window provides controls that support overall mode configuration and are located in the upper left section of the main window They are MIPI Standard drop down control to select the DSI or CSI standard This selection should be made first as it naturally r
37. ciated with active lanes They will also show data bytes associated with Note that the DPhy Decoder does not distinguish between the LPOO state called HSPrepare and the HS 0 state called HSZero The sequence state for this period is called HS Go Page 28 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 HS Zero HS Sync and HS Trail states fractional bytes are not displayed On the other hand only Data0 may show LP data bytes including LPDT packet bytes as well as escape and trigger byte codes associated with the escape signaling protocol 4 3 2 2 13 Trig Field The Trig field applies to all record types and is a Boolean value 0 or 1 that represents the result of trigger criteria evaluation for the record There is no limit to how many records may have their Trig field set Moreover non zero prefill settings may mean the record associated with the hardware trigger event is not the first record with Trig 1 in the trace If it is important use the Cursor Panel or context menu to go to the record associated with the hardware trigger record 1 e the record triggering acquisition A default SymDef mapping is provided to map field values of 0 to and 1 to Trig 4 3 2 2 14 Frame Field The Frame field applies to records that contain the first packet byte of all video related packet types including CSI Frame Start Frame End Line Start Line End DSI VSync Start and VSync End blankin
38. e and value The 73 operator used is Modify Search From Current Cell Contains a sub menu with three items Replace Search Term Add OR SearchTerm Add AND Search Term Selecting one of these menu items will perform the requested function based on the current cell s field name and value The operator used is 4 3 2 7 Radix Context Menu Summary The radix context menu is brought up by right clicking in the sub header row second row of the listing grid and is used to set the display format of the current column The functions in the menu have been described in earlier sections Here is a summary of all the functions in the radix context menu except for the context menu for the Time field Hexadecimal sets the radix to hexadecimal enabled for numeric fields Decimal sets the radix to decimal enabled for numeric fields Binary sets the radix to binary enabled for numeric fields Symbolic Default sets the radix to symbolic using the default translation internal to the application e Symbolic File sets the radix to symbolic using the translation defined by the symbolic file specified by the user using the lt New Symbolic File gt menu option e lt New Symbolic File gt brings up an open file dialog to select a symbol file to associate with the current column In addition the time field radix context menu has several more options to set the desired
39. e and where the trigger should occur relative to records in the trace see section 4 3 4 1 The acquisition process has several phases Prefill memory is prefilled with data records before the trigger criteria are evaluated This allows placement of the initial trigger record position in the overall trace capture e g at the start in the middle near the end etc Trigger trigger criteria are evaluated While waiting for the trigger condition to evaluate true prefill records continue to be acquired discarding the oldest captured records to make room for new records During this time the status displayed in the status bar will be Waiting for trigger Also the label of the Run button will change to Stop Clicking the Stop button will force a trigger condition moving the process to the next phase Capture Capture capture memory is filled with data records During this time the status displayed in the status bar will be Waiting for capture buffer to fill In some capture configurations e g if Idle Timeout is zero and quiescent lane activity it is possible for acquisition to stall waiting for data In this case the user can click the Stop button to complete acquisition with the records that have been captured Be aware that this will leave some valid data un captured in the processing pipeline set Idle Timeout to ensure a complete capture Upload capture memory is upload
40. e to the start of trace capture see section 4 3 2 2 4 DPhyDecoderHSCtl supports viewing time stamps relative to a global time reference selected by the user via the radix context menu associated with the time field Records occurring before the global time reference have a negative time field value and records occurring afterwards have a positive time field value The following time field display options are provided in the Time radix context menu Relative to Start display time stamps relative to the first record Relative to Trigger display time stamps relative to the trigger record Relative to Cursor display time stamps relative to cursor Relative to Cursor2 display time stamps relative to cursor2 Relative to Previous display time stamps relative to the preceding visible record 4 3 2 1 10 Defining and Using a Symbol File To associate a radix file to a numeric field select the lt New Symbolic File gt option in the radix context menu This brings up an open file dialog to browse for and select the new symbol file Once the symbol file has been selected the context menu will enable the Symbolic File option and it will be checked Symbol files are text files containing number to string mappings where each mapping consists of a Boolean predicate equation and a string During disassembly the equation from each mapping is evaluated in order for each field value and the string from the first mapping
41. eases the font size of the grid display Values can range from 6 to 12 Page 35 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Highlight Filter Gaps check box that sets whether or not filtered records cause a double thick horizontal grid line to be displayed between visible rows Disable Disassembly check box that disables disassembly after acquisition and upload The main use of this option is for debugging allowing a trace to be acquired that causes a catastrophic error in decoding saved and sent to the Moving Pixel Company for analysis Reanalyze button that restarts decoding and disassembly on the current trace data This may be needed if initial decoding was aborted before decoding was complete in which case only a partial disassembly is displayed Click on the Reanalyze button to restart and complete a full decoding Disable Sync Detect this check box is not on the Option tab but rather in the main application window because it affects real time processing as well as disassembly When checked HS Sync bytes are not recognized by the instrument and thus no HS protocol packets are decoded in the disassembly Instead entire HS bursts are labeled as HS Raw packets and unaligned lane data is presented as payload This is useful for viewing low level phy traffic during debugging Geen EE EE Gave e sas gn See nee ey Options Filter Search Video Packets lt Minimize gt
42. ed from the DPhy Decoder instrument into application memory Upload speeds for USB2 are about 20 MB s and up to 10x faster for USB3 During this phase the Run button label will be set to Abort Clicking the Abort button halts upload and discards any partially uploaded data Decode captured records are decoded and displayed in the listing grid Generally this is a fairly quick process though depending on the filter and disassembly settings record content and the number of captured records this can take some time Progress is indicated via the status bar with Building records and a percent complete The Run button label remains set to Abort for the user to request a halt to decoding If aborted partial results are displayed In the event that the user wants to obtain a full decoding after aborting clicking the Reanalyze button in the Options tab reinitiates decoding Page 22 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 4 3 2 Listing Grid The listing grid displays one disassembly record per line arranged in order from earliest in time at the top to latest in time at the bottom Generally only a subset of records is shown in the listing at any time based on settings in the filter tab of the disassembly control panel the global mnemonic view state and the individual mnemonic view state for packets Please note there is a distinction between data reco
43. efinition Please refer to section 4 2 2 1 2 for an overview of these controls The main difference in this mode versus packet field triggering is that predicate terms always operate on the lane zero sequence state DPhy defines various LP signaling sequences such as BTA ESCAPE and HS and triggering is possible on the occurrence of any of them While each state and intermediate states are represented by a particular field value only a few are generally useful These particular states HS Burst BTA BTA Exit and Escape Entry are available for convenience in the field drop down control For completeness Table 1 documents all the possible sequence states Numbers in the state names indicate receipt of a particular LP signal value i e 0 LPOO 1 LPO1 2 LP10 3 LP11 For example if the sequence state is LPSTATE_3 lane 0 is currently in the LP11 state If in LPSTATE_32 lane 0 has seen LP11 followed by LP10 Table 1 Lane 0 Sequence States State Value LPSTATE_UNKNOWN 0 LPSTATE 3 1 LPSTATE_32 2 LPSTATE_320 3 LPSTATE_3202 4 LPSTATE_BTA 5 LPSTATE_BTA_EXIT 6 LPSTATE_3201 7 LPSTATE_ESCAPE 10 LPSTATE_31 11 LPSTATE_HS 12 4 2 2 4 Escape Command Triggering When triggering based on the Escape Command the packet field controls are disabled and triggering is solely determined by predicate term and trigger equation definition Please refer to sectio
44. en on multiple lanes but sync bytes if present are not within one byte time of each other When a burst error is declared in the disassembly a single burst error packet is shown containing unaligned data for all active lanes 4 2 2 9 Any Error Triggering When triggering on any errors all other trigger controls are disabled The trigger flag is set for packets that have a burst error ECC error or CRC error 4 2 2 10 Trigger Immediately When triggering immediately acquisition begins immediately after the Run button is clicked The trigger flag is not set for any packet 4 2 3 Receive Tab Page Controls The receive control page is one of two tab pages occupying the right side of the main window To show the page click on the Receive tab at the top Page 15 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 A Trigger Receive Ise 00 FF to Use 1 LP11 states H Auto LPDT Response LP State Period ns js00 H Custom Terminations Force Off Force On Figure 3 Receive Controls Receive controls only apply when the instrument is in receive mode i e the Receive Mode check box in the main window configuration pane is checked These controls see Figure 3 Receive ControlsFigure 3 configure two behaviors in receive mode 1 How the instrument responds to an incoming BTA on the bus The user can define up to a 128 LP transition sequence using the Response Msg text
45. enabled and configured by fields in the VSync Start packet DPhyDecoderHSCtl provides support for viewing and saving stereoscopic frames as follows e A stereoscopic frame that is pixel or line interleaved is first de interleaved before viewing or saving to an image file A stereoscopic frame that is frame interleaved is not deinterleaved in any way even if 3DVSync is false e A Stereoscopic frame that have a stream orientation opposite as the 3D Display Orientation setting is rotated 90 degrees before viewing or saving to an image file e A stereoscopic frame saved to a binary file is always saved exactly as received without modification 4 3 4 4 5 Decoding Compressed DSC Video Decoding compressed DSC video requires an associated Picture Parameter Set PPS to convey decoding parameters The model used by DSI 1 2 is that up to four PPS tables can be stored in the DUT to be used for decoding and two commands are used to support PPS table management The Compression Mode command indicates the currently active Page 46 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 PPS and the Picture Parameter Set command allows updating the PPS table stored in the DUT Complicating decoding compressed video for the application is that an acquisition may not capture all the Compression Mode or Picture Parameter Set commands associated with compressed video frames in the acquisition In this case the disassemb
46. esets the filtering and triggering options available to the user Max Lane Count drop down control to select the maximum number of lanes to monitor for activity Unused lanes are forced to LP11 for the purposes of instrument monitoring and acquisition The instrument monitors DPhy bus activity on lane counts up to the Max Lane Count setting For example with a Max Lane Count setting of 3 HS bursts using 1 2 or 3 lanes will be detected automatically and the actual number of lanes participating in ongoing HS bursts is displayed in the status region Page 7 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Idle Timeout drop down control to set the idle time out duration This setting is the maximum time to wait without outputting a record before inserting a duplicate LP record into the processing pipeline If timeout is set to None the instrument will wait indefinitely for a change in input state stalling the processing pipeline and possibly preventing detection of last active records in a trace Escape Mode check box to enable escape mode protocol detection and escape packet reconstruction necessary for triggering and presentation of escape packets including LPDT packets Note that if escape mode is not enabled triggering on escape packets is not supported and only low level LP state transitions are displayed for escape packets in the disassembly listing Receive Mode check box
47. essing state its name may display Run Stop or Abort Listing Grid The listing grid is the central feature of the disassembly window It contains decoded records and their fields Cursor Status Display The top part of the window shows a text read out of the two cursor locations time relative to start of trace The time delta between the two cursors is also displayed In addition if one or more disassembly rows are selected the total time for the selected rows is displayed Cursor Control Panel The cursor panel is a control next to the vertical scroll bar of the listing grid far right that spatially indicates relevant locations in the trace specifically trigger location cursor locations and current view location Page 21 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Disassembly Control Panel The tabbed control beneath the listing grid contains all the controls associated with disassembly Separate tab pages provide controls for acquisition and disassembly options filtering and searching disassembly records and the display of video frame and packet information contained in the trace capture 4 3 1 Run Stop Button When the DPhy Decoder is connected and monitoring activity on a DPhy bus clicking the Run button initiates an acquisition Acquisition is configured via the Options tab page of the disassembly control panel in particular how much memory to us
48. fic is seen Please verify that the indicator is correct before starting an acquisition or if ongoing unexpected errors are seen Pressing the Send button causes the bus owner to be reset to Host Recv Read Cnt Indicates the number of BTA cycles seen since the last clear event 4 2 4 3 Statistics Control Three buttons control how statistics are displayed Clear resets all statistics to zero The clear function is also automatically applied when the Send button is pressed or when in Auto HS Freq and the detected frequency changes by more than 10 MHz Hold Resume suspends or resumes statistics update The button label alternates with each click indicating the function to be performed when next pressed For example when Resume is displayed statistics update 1s halted until the button is pressed Totals Per Iter shows total counts or per update counts The button label alternates with each click indicating the function to be performed when next pressed For example when Totals is displayed all statistics except for the sticky errors and trigger summarize activity only since the last update rather than since the last clear 4 3 Disassembly Window The disassembly window uploads decodes and displays captured records from the DPhy Decoder instrument This window can be brought up from the main window by clicking on the Show Disasm button in the Trigger pane center screen Page 20 The Mov
49. g and video packets Starting at one it reflects an ordinal frame number associated with the packet It also corresponds with frames listed in the video tab of the Disassembly Control panel Generally the frame number will increment with each Frame Start or VSync Start packet but might otherwise increment if a video packet occurs with a new VC or DataType 4 3 2 2 15 ActLine Field The ActLine field applies to records that contain the first packet byte of an active video packet where a preceding Frame Start or VSync Start packet has already been seen otherwise the line number is unknown Starting at one it reflects the active line number of the packet in the frame 4 3 2 2 16 Lane Field The Lane field applies to all records and indicates the corresponding data lane of its data byte For LP records Lane field is always zero For HS records the Lane field can be 0 through the maximum lane count minus 1 4 3 2 2 17 ECC Fields There are three ECC fields ECC ExpECC and ECCOKk displaying the ECC byte contained in a packet header the expected computed ECC bytes associated with the header and a comparison result of the two respectively These fields apply to records that contain the first packet byte ECCOK has a default SymDef mapping for the boolean comparison of 0 Err and 1 Ok 4 3 2 2 18 BusOwn Field The BusOwn field applies to all DSI records and indicates which end of the bidirectional link i
50. g packet data type of 22h tells hardware to treat data IDs of 22h 62h a2h and e2h as long packets But adding a custom long packet data type of 42h tells hardware to treat only DataID equal to 42h as a long packet Once custom data types and DCS commands are been defined options for selecting these packets will appear in the Custom Commands tree view node for triggering Click the Clear All button to clear all the text boxes Page 49 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Define Custom Commands List integer values separated by spaces If desired append h to value to indicate hexadecimal Custom Short Packet Data Types ustom Long Packet Data Types Custom Short DCS Commands Custom Long DCS Commands Figure 11 Custom Command Dialog 4 5 Firmware Update Periodically new releases of firmware may be available for the DPhyDecoder HSinstrument Firmware is easily updated through the use of the Firmware dialog accessible by selecting Update Firmware from the Control menu see Figure 12 Many of the features of this dialog are for internal use only For users the only options are to program new firmware or to verify existing firmware Simply browse for the firmware filename extension rbx and click either Program or Verify respectively Once the task has begun the relevant button changes its label to Stop allowing the user to halt the task before completion Thi
51. ger percentage of the acquisition memory buffer size and ranges from 5 to 95 Setting the Prefill Pct value to minimum will cause the trigger record to appear near the beginning of the trace Setting to 50 places the trigger record to appear in the middle of the trace Etc Because disassembly first requires seeing an LP11 state before decoding the minimum prefill percentage is set to 5 Except in extreme cases this should allow enough time preceding a trigger record at the end of an HS burst to include an LP record containing LP11 for proper disassembly Memory Depth drop down box that provides options for setting the size of the acquisition buffer The size ranges from 1 MB to 1024 MB As expected smaller buffer sizes correspond to faster acquisition upload decoding and display In addition filter and search functions are faster with smaller traces Allow Trigger Before Prefill check box that determines whether an acquisition is allowed to trigger before the prefill requirement is met This option is necessary for unique triggers that occur early on in a test If unchecked while a trigger event under these conditions might be seen in the real time statistics acquisition may not occur 4 3 4 1 2 Disassembly Options Disassembly controls are provided for configuring trace decoding and disassembly display see Figure 5 General options unrelated to protocol are Grid Font Size up down control that increases or decr
52. ilable by right clicking in any grid cell except the radix sub header row In particular the user can select Goto Cursor or Goto Cursor2 to scroll the listing grid to the record location of the indicated cursor Also if the context menu is brought up from a non header cell the Move Cursorl Here and Move Cursor2 Here options are also available 4 3 2 4 Disassembly View Content A main feature of the disassembly window is to allow the user to set criteria for filtering records only displaying a subset of acquired records from the disassembly view This is done through several mechanisms enabling disabling LS HS signaling adjusting the global mnemonic view or the mnemonic view of individual packets and setting packet and record filter criteria Each mechanism successively restricts records shown in the disassembly A main option for controlling the disassembly view content is the Show LP HS Signaling check box on the Options tab of the Disassembly Control Panel Disassembly is affected by the check box state as follows e Checked shows all record types including non packet traffic such as LP records and HS signaling record types such as HS Zero HS Sync and HS Trail e Unchecked hides all record types except for packet records which include HS LPDT escape burst error HS raw and skew calibration packets When the option is changed the listing is updated to display records only applicable to the new
53. includes termination control and simple configurable BTA response packet Page 2 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 2 Setup amp Installation The DPhyDecoderHSCtl application should be installed on a Windows host machine with the following requirements e Operating System the host machine should be running WinXP Win7 or Win8 using either a 32 bit or 64 bit processor e Communication USB3 or USB2 The application communicates with the DPhyDecoderHS instrument through USB USB3 is greatly preferred for its increased performance e Memory at least 4GB As DPhyDecoderHSCtl is memory and processing intensive more memory is advantageous To install DPhyDecoderHSCtl simply execute the setup exe file provided and step through the installation windows The DPhyDecoderHSCtl application is installed by default in the c Program Files TMPC DPhyDecoderHSCtl directory One the application is installed set up connections to your DPhy Decoder HS instrument and start up as follows e Connect a USB2 or USB3 cable between the host computer and instrument e Connect your DUT to either the SMA inputs Receive Mode or high impedance solder in inputs Monitor Mode e Plug in and connect the 24V power adaptor e Power on the instrument e Launch DPhyDecoderHSCtl application Page 3 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 3 DPhy
54. ing Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 DPhy Dissassembly Curs1 Options 796 4 ns Curs2 15 0ns Delta 781 3 ns Time Disp e ECCOk rami e lane Datad Datal D Hex Hex H PktLen Frame ActLine Debug reese TE Ske Filter Packets lt Minimize gt Frame Sel Time ve Type H LineTim E 833 2ns 0 Packed RGB 888 2 943 1932 us O Packed RGB 888 640 Yes 2 970us 6715 H 24323232ms O Packed RGB 88s 640 480 Yes 2970us 6715 4 3 9214532 ms 0 Packed RGB 888 640 Yes 2 970 us 671 5 5 5 4105832 ms O Packed RGB 888 640 Yes 2 970 us 671 5 6 6 8997132 ms 0 Packed RGB 888 640 Yes 2 970us 671 5 7 8 3888432 ms 0 Packed RGB 888 640 Yes 2 970 us 671 5 9 879732 ms 0 Packed RGB 888 640 480 ves 2 970 us 671 5 3 9 11 3671032 ms 0 Packed RGB 888 640 Yes 2 970 us 10 12 8562332 ms 0 Packed RGB 888 640 Yes 2 970 us E Seele gag a S Figure 4 Disassembly Window Figure 4 shows a disassembly listing showing the capture of a DSI video sequence The control areas of the disassembly window can be broken down as follows Run Stop Button This button at the top right of the window controls the start of acquisition It can force a trigger if desired and can also be used to abort long processing tasks Depending on the current proc
55. ition Also you can also first select a group of columns and then right click and drag them Discontinuous groups that are moved aremade contiguous after dragging 4 3 2 1 7 Setting Column Widths Column widths are automatically set to accommodate the widest string or value to be displayed and are updated whenever the field radix is changed However the user may adjust column width by selecting the right edge of a column header and dragging it A column s width may be restored to its default using the column context menu option Restore Selected Column Width s or simply double clicking on the column header 4 3 2 1 8 Setting the Field Radix Most fields are numeric and have an underlying value associated with it Boolean fields are also numeric and are associated with a O or 1 value Numeric fields can be displayed as binary decimal or hexadecimal by right clicking the radix context menu of a Page 24 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 particular column sub header second row in grid In addition some fields have a default symbolic association basically a built in number to string mapping that may be available in the menu Finally a user can define a custom symbol file to use for number to string translation see section 4 3 2 1 10 4 3 2 1 9 Setting the Time Field Reference The time field displays the time stamp of a record indicating when the data was acquired relativ
56. ler may not be able to correctly decode captured compressed video frames The following summarizes how the application behaves with respect to PPS management and decoding compressed video 1 The application emulates the DUT in maintaining and updating four PPS tables based on acquired and disassembled Compression Mode and Picture Parameter Set commands encountered in the stream 2 PPS tables are maintained and used for decoding even across multiple acquisitions and they are also saved in configuration files However they are not saved and restored when the application is closed and relaunched 3 If no Picture Parameter Set has been seen for the currently selected PPS table an error is displayed when the user views or saves a compressed frame 4 The user can override internal PPS table usage with the Use File PPS checkbox in the disassembly Options tab page When checked the user provides a DSC or binary file to use as a PPS reference 4 3 4 5 Packets Tab Page The Packets tab page shows a summary of all packet types acquired in the trace see Figure 10 gt Ben Ben ABT CSE SRE Options Filter Search Video Packets lt Minimize gt Debug Packet Type Pixel Steam 24 bit RGB 888 fe LvSvncStat e a Figure 10 Packets Tab In this display the packet counts of each packet type separated by Virtual Channel are shown Clicking on a column header alternately sorts the display in ascending or descending order based on
57. monitored by the instrument Status updates occur about once a second The status display generally falls into three categories activity statistics and statistics control 4 2 4 1 Activity The activity display at the bottom of the status pane shows graphically the LP and HS activity occurring on each lane The following notes describe the activity display Page 17 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Activity for the LP LP and HS signals or each lane is represented by an indicator graphic The top row for LP activity consists of 10 indicators a pair for each lane with the left indicator in each pair representing LP and the right indicator representing LP The bottom row for HS activity consists of 5 indicators one for each lane Indicators can be low low horizontal bar high high horizontal bar or transitioning vertical bar with arrows on both ends The indication spans the period since the last status update so for example if a toggling indicator appears it means that the signal transitioned at least once since the last update Indicators are valid and updated even if the acquisition pipeline is stalled waiting for an event i e instrument Output is inactive for example while in delta mode with no timeout and a quiescent bus 4 2 4 2 Statistics The predominant part of the status control section consists of on going real time statistics abo
58. n 4 4 Defining Custom Commands Custom commands are DataTypes or DCS command codes that are not defined in the relevant MIPI specification If present in the DPhy bus traffic custom DataTypes for long packets are important to identify to ensure the DPhyDecoder does not get confused during parsing This is because the default behavior when the instrument encounters an unknown DataType is to assume it is a short packet In addition if the user wants to trigger on fields particular to a custom packet type these DataTypes and or DCS command codes need to be enumerated as well To define custom commands a dialog is provided when Define Custom Commands is selected from the Config menu see Figure 11 This dialog lets you specify custom short packet data types long packet data types custom short DCS commands and custom long DCS commands Simply enter lists of values separated by spaces in the appropriate text boxes and click OK Values are parsed as decimal unless appended with an h in which case they are parsed as hexadecimal i e 20h 32 decimal Custom data type values are allowed to be 8 bits as some user s hardware can allow use of the 2 bit VC field as part of the data type for test modes outside of the protocol standard So if a value is less than 64 it is assumed to apply for all VC settings 0 3 but if a value is greater than or equal to 64 it is assumed to ignore the VC field For example adding a custom lon
59. n 4 2 2 1 2 for an overview of these controls The main difference in this mode versus packet field triggering is that predicate terms only are applied to escape command byte values Page 14 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 For convenience the field drop down control in this mode contains entries for predefined escape commands in the DPhy specification These are LPDT ULPS Reset Trigger Trigger 1 Trigger 2 and Trigger 3 The user may also select Custom Escape Cmd to define other command values 4 2 2 5 Skew Calibration Triggering When triggering on Skew Calibration all other trigger controls are disabled The trigger flag is set for bursts that contain a skew calibration sequence 4 2 2 6 CRC Error Triggering When triggering on CRC errors all other trigger controls are disabled The trigger flag is set for packets that have a CRC error 4 2 2 7 ECC Error Triggering When triggering on ECC errors all other trigger controls are disabled The trigger flag is set for packets that have an ECC error 4 2 2 8 Burst Error Triggering When triggering on burst errors all other trigger controls are disabled The trigger flag is set for packets that have a burst error which is defined as when either 1 A valid HS burst entry and exit sequence is seen on a lane but with no valid sync byte 2 A valid HS burst entry and exit sequence is se
60. n decimal unless appended with an h for a hexadecimal value or a b for a binary value When using hex or binary values an x may be used as a don t care placeholder Thus the value 1xh will match values from 10h to 1fh Symbolic field comparison symbolic is supported but the user should understand that values are compared using string comparison and so results may not be as intended For example if the user constrains the filter equation to select a time range when the Time field is set to symbolic he might set up the following equation Page 40 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 IF Time gt 100 us AND Time lt 200 us However the result of the string comparisons against Time values such as 120 888 ns and 190 666666666 ms will not be as desired In general the and comparison operations are most predicatble though be aware that comparisons are case sensitive Note that changing the radix of a field from numeric to symbolic or symbolic to numeric after defining filter or search terms can affect the term s validity Comparisons are performed on field values in the radix they are displayed not the radix at the time the predicates were built An error will occur if filtering or searching using a non numeric predicate value on a field that is currently being displayed as a numeric value though hex decimal and binary conversi
61. n file is generally saved with the cfg extension and is a binary file with undocumented format 4 7 Color Dialog The color options dialog allows the user to adjust colors for use in the application This dialog is experimental and only a few colors have the greatest impact on the aesthetics of the application in particular the Button background and the Form background To bring up the Color Options Dialog select Set Colors in the Options menu To change a color first select the color type option for example in Figure 13 the Form BG form background is selected Then left click and drag in the color square adjust the color sliders or type in color values to set the color The color rectangles to the left of the option buttons show the currently assigned color Clicking on a rectangle makes Page 51 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 the selected color the current color i e fills in the color settings This way control colors can easily be copied to other controls As colors are selected the main window colors change to reflect the new settings When finished click OK to keep the new colors Cancel to discard the new colors or Defaults to restore the colors to the application defaults I ol TE WR WW Form BG Button FG Button BG Form FG Menu BG Menu ltem FG Menu Item BG Menu Item Hilite FG Menu Item Hilite BG Tab BG
62. ng the Scan button updates the instrument serial number control adding any new instruments that have recently been powered on Note that while multiple copies of the application can run at the same time only one instance can be connected to a given instrument at a time Serial numbers of instruments that are in use by another copy of the application are marked in use To connect to an instrument simple select the appropriate serial number and click OK Note that the serial number and firmware version of the currently connected instrument appears in the status bar at the bottom right of the main window Shutting down the application will automatically disconnect from the instrument The user can explicitly disconnect using the Disconnect from DPhy Decoder menu option in the Control menu leaving the application offline 4 2 Main Window Once connected the main window is shown see Figure 2 The instrument serial number is shown in a bottom right pane on the status bar The main window contains all the user controls for configuring and operating the instrument Page 6 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 DPhyDecoderHSctl ll File Control Config About Trigger Receive Config MIPI Standard joi 14 Escape Mode Trigger Pkt Types Max Lane Count fa y d Receive Mode Generic Commands Pato HS Freq C DCS Write Commands Idle Timeout None l BB Disable HS Syn
63. olumn Context Menu The column context menu is brought up by right clicking in any cell except for the radix row second row of the listing grid Depending on the cell location clicked to bring up the menu certain options will be enabled or disabled Here is a summary of all the functions in the column context menu Function Description Shortcut Add Column s Brings up dialog to add columns i e make fields visible to the listing grid Delete Column s Deletes selected columns Restore Selected Restores selected columns to their default Column Width s width Select All Selects all records in the disassembly Ctl A Goto Cursorl Scrolls the listing grid to the cursorl record Ctl 1 Goto Cursor2 Scrolls the listing grid to the cursor2 record Ctl 2 Goto Trigger Scrolls the listing grid to the hardware trigger Cu T record Goto Brings up a dialog to enter a sample number to scroll the listing grid to the nearest visible Ctl G record is used Move Cursor1 Here Moves the cursor position to the current record Move Cursor2 Here Moves the cursro2 position to the current record Search Frame Start Fills in the search criteria to search for Frame Ctl Alt F Page 31 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Start for CSI or VSync Start for DSI Then the Next Search function is perf
64. on they are all reset to zero and continue counting Page 18 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 CRC Error Cnt counts the number of CRC errors that occurred since the last clear event A burst error is declared when the instrument cannot find an HS sync byte in all active lanes of an HS burst occurring nearly synchronous to each other In this case the instrument cannot decode or trigger on packets in the burst Controls and statistics relating to burst error are Burst Error LED control indicating whether a burst error occurred since the last update If red an error occurred if green no error occurred Sticky Burst Err LED control indicated whether a burst error occurred since the last clear event If red an error occurred if green no error occurred Burst Error Cnt counts the number of burst errors that occurred since the last clear event The trigger flag is set whenever the conditions defined by the trigger controls are met Controls and statistics relating to trigger status are Trigger LED control indicating whether a trigger event occurred since the last update If light blue a trigger occurred if green no trigger occurred Sticky Trigger LED control indicated whether a trigger event occurred since the last clear event If light blue a trigger event occurred if green no trigger occurred Trigger Cnt counts the number of t
65. onnected to your DUT Set the Data Lane Map to 3210 Set the Idle Timeout to say 1 ms Check Delta Mode Escape Mode and Auto HS Freq e Set the Trigger Type to Immediately Click the Send button to make sure all settings have been sent to the hardware Page 53 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 9 For initial testing if possible set up your DUT to generate continuous traffic It is best to initially start out at a relatively low frequency 100 300 MHz 10 At this point you should see LP and HS activity at the bottom of the status pane in the main window and packet statistics begin to increment 11 Click on the Show Disasm button to bring up the Disassembly Window 12 The default acquisition options are reasonable setting to use for a first acquisition Thus simply click on the Run button at the top right corner of the disassembly window to capture your first trace data Page 54
66. ons are automatic 4 3 4 3 Search Tab Page The search tab contains controls for searching and optionally highlighting records that satisfy given criteria Statistics about filtered and matched search records are also displayed Debug Search Video Packets lt Minimize gt Id Highlight Selected Id Search Only Pkt Hdrs Drec Op Field Comp Value Orec Sos CA ES ES Cnt Orec J Search Cnt Orec 0 00 Visible Cnt 35421 rec 0 11 Hidden Cnt 31811633rec 99 89 Total Cnt 31847054 rec Figure 7 Search Tab Here is a description of the controls contained in the filter tab e Highlight Selected when checked records satisfying the search criteria are highlighted in the listing e ECC Err Cnt displays the number of packets in the listing that have an ECC error This label is clickable to auto fill the Search Term Grid for highlighting and locating ECC error packets e CRC Err Cnt displays the number of packets in the listing that have a CRC error This label is clickable to auto fill the Search Term Grid for highlighting and locating CRC error packets In Figure 7 above the search term for finding CRC errors has been auto filled by clicking on the CRC Err Cnt label e Burst Err Cnt displays the number of packets in the listing that have a burst error This label is clickable to auto fill the Search Term Grid for highlighting and locating burst error packets Page 41 The Moving Pixel Company DPhyDecoderH
67. ormed Search Same Mnem Fills in the search criteria to search for records that match the mnemonic value associated with the current record Then the Next Ctl Alt M Search function is performed Note that the current cell can be any field type Search Same Val Fills in the search criteria to search for records that match the current cell s field value Ctl Alt V Then the Next Search function is performed Search Same Mnem Fills in the search criteria to search for records And Val that match the mnemonic value associated with the current record and the current cell s Ctl Alt B field value Then the Next Search function is performed Next Search Scrolls to the next record satisfying the search Cts criteria Next Packet Scrolls to the next packet start Ctl P Next Frame Start Scrolls to the next CSI Frame Start or DSI Ctl F VSync Start packet Next Same Mnem Scrolls to the next record that matches the mnemonic value associated with the current Ctl M record Next Same Val Scrolls to the next record that matches the Mare Ctl V current cell s field value Next Same Mnem Scrolls to the next record that matches the And Val mnemonic value associated witht the current Ctl B record and the current cell s field value Prev Search Scrolls to the previous record satisfying the AILS search criteria Prev Packet Scrolls to the previous packet start Alt P Prev Frame Start Scrolls to the previous CSI Frame Start or Alt F DSI VSync Start packet Pre
68. rds acquired by the hardware and disassembly records displayed in the listing grid For LP data records there is a one to one correspondence between data records and disassembly records For HS data records the correspondence varies depending on what part of the HS burst is being displayed Generally one disassembly record is used to display one packet byte for one lane or one one non packet byte for all active lanes For the remainder of this document unless it is clear from context the term record will refer to a disassembly record Columns in the grid represent data fields associated with records whether direct content acquired from the DPhy bus derived data from that content or other attributes created by the application Not all fields apply to all record types in which case a field will generally contains dashes The listing grid contains vertical and horizontal scroll bars for scrolling visible rows and columns in the grid Other mechanisms are available for scrolling or selecting viewable rows in the listing including key strokes clicking in the cursor panel selecting among several context menu options and buttons in the search and video tabs of the disassembly control panel 4 3 2 1 Column and Row Manipulation The user has control over what columns are displayed how they are ordered and how field data are formatted in the column grid Columns consist of a header in the first row a radix selection in the second row
69. rigger events that occurred since the last clear event Packet count statistics summarize the number of occurrences of each type of packet Statistics relating to packet counts are Short Pkt Cnt counts the number of short packets since the last clear event Long Pkt Cnt counts the number of long packets since the last clear event LP Pkt Cnt counts the number of LS packets since the last clear event HS Pkt Cnt counts the number of HS packets since the last clear event Total Pkt Cnt counts the total number of packets since the last clear event Lastly other miscellaneous statistics provided are HS Active Lanes Indicates the maximum number of lanes that were part of an active HS burst since the last clear event If zero no HS packets were seen Note when any of these packet counts reach 999 million all counts reset to zero and continue counting Page 19 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Meas HSCIk Indicates the measured HS clock over a relatively short time period milliseconds If Auto HS Freq is checked this measurement is used to update the HS Clk Rate setting if it differs by more than 10 Bus Owner Indicates the current owner of the DPhy bus Host or Device It is possible for this state to be incorrect for example if the instrument or devices are powered on or reset when the DUT owns the bus or if invalid LP traf
70. rings up the Custom Command dialog see section 4 3 o Set Colors brings up the Color Options dialog to customize the colors of forms buttons and other controls About o Help displays this manual as a help file o Help RPC displays the DPhyDecoderHSCtl RPC manual as a help file o About brings up a summary window displaying the current software version This dialog also includes a summary of release notes of changes fixes for each version 5 Quick Start This section gives an overview of how to setup and configure the application to make an initial acquisition and disassembly 1 2 NA Run the Setup program that installs the DPhyDecoderHSCtl application and the USB driver used to communicate with the DPhy Decoder Connect the DPhy Decoder instrument to your DUT Please refer to the DPhy Decoder Hardware Datasheet and User Manual for how to connect your hardware to the instrument Connect the USB cable from the DPhy Decoder to the host Power on the DPhy Decoder Launch DPhyDecoderHSCtl The Connection dialog appears asking for you to select the serial number of the instrument for connection see section 4 1 If your instrument s serial number does not appear in the drop down control check that the instrument is powered on and connected via USB to the host computer Configure the main window controls as follows e Set the MIPI standard to CSI or DSI as appropriate Set the Max Lane Count to the number of lanes c
71. s is fine for verification but is not generally recommended when programming as this will render the instrument inoperative until firmware has been fully programmed Either task takes about 5 minutes to complete with status messages providing updates on progress When programming is complete shut down the application and power cycle the instrument to reload the new firmware You should check that the first two LEDs on the instrument twinkle for a few seconds at power on indicating a successful boot Otherwise try power cycling again If the problem persists you will need to reprogram firmware again Page 50 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Update Firmware 1002 RBF Filename 1 Security Filename Firmware Filename C jobs DPhyDecoder DPhyDecoder_Ver2 2 rbx Brows Figure 12 Firmware Update Dialog 4 6 Configuration Files DPhyDecoderHSCtl automatically saves all configuration settings except for captured acquisition data when the application closes and restores them the application is launched The application settings file name is called App Config and is saved at the following location C ProgramData Moving Pixel Company DPhyDecoderHSCtl A pp Config The user can also save restore configuration settings including captured acquisition data to a file using the File gt Save Cfg and File gt Load Cfg menu options respectively A configuratio
72. s transmitting i e owns the bus A default SymDef mapping for the Boolean value is 0 Dev and Host 4 3 2 2 19 BurstErr Field The BurstErr field displays whether or not a packet is a burst error packet A default SymDef mapping for the Boolean value is 0 and 1 Err Page 29 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 4 3 2 3 Trigger and Cursors The hardware trigger record and two cursor records can be displayed in the listing grid changing the background highlighting of their associated records The trigger record indicates the location of the hardware trigger for capture and is a static fixed position that cannot be changed but can be used as a reference for time measurement and Goto operations Its Trig field will be set to 1 though it may not be the only record with Trig nor is it necessarily the first occurrence of a record with Trig 1 depending on the Prefill percentage setting Cursors are enabled by checking the associated checkbox in the top of the cursor panel to the right of the listing grid and can be controlled from the cursor panel control see Cursor Panel section for more details The current cursor positions and the delta time between them are displayed above the listing grid using the current global time reference set in the time field radix context menu Cursor related functions are also available in the column context menu ava
73. second and third columns represent cursor and cursor2 respectively and if enabled are drawn as a blue square labeled with a 1 or a blue square labeled with a 2 A check box above each cursor column can be used to enable or disable each cursor Disabled cursors are drawn with a gray background in the cursor panel and are not visible in the disassembly listing Like a scroll bar the cursor panel is meant to represent the entire vertical span of the listing windows Cursor positions within the panel symbolically indicate where each lies within the listing i e a cursor toward the top of the panel indicates a record position near the start of the listing and a cursor toward the bottom of the panel indicates a record position near the end of the listing The times associated with cursor and cursor positions and the difference between them are displayed in readouts above the listing grid In addition to the cursor symbols a horizontal white region is drawn across the cursor panel This region represents the currently viewed region of the listing having a position and thickness corresponding to the current viewed region relative to the total listing Finally horizontal orange lines are drawn to indicate the occurrence of at least one search result in the associated region of the disassembly listing If the search record density is high enough this can have the effect of shading the background of entire regions of the cursor panel orange
74. t see traffic that causes it to incorrectly believe the DPhy bus owner is the device and not the host Resetting the hardware restores the bus owner flag in the instrument to Host 4 2 2 Trigger Tab Page Controls The trigger tab page is one of two tab pages occupying the right side of the main window To show the page click on the Trigger tab at the top As mentioned in section 3 4 the DPhy Decoder has several triggering modes The triggering mode is selected via the Trigger Type drop down control at the bottom right corner of the Trigger Controls section The trigger mode should be selected first before other fields as the control options change based on mode The trigger modes available are Packet Fields This is a common form of triggering In this trigger mode the user defines predicate terms based on packet fields and a trigger equation to evaluate and combine terms to determine the final trigger condition Predicate terms perform Boolean comparisons between packet fields and constant values LP Signal State Compares LP signal state for any or all lanes including the clock lane as predicates evaluated in a Boolean equation to determine trigger state LP Sequence State Evaluates the lane zero sequence state e g BTA as predicates evaluated in a Boolean equation to determine trigger state Escape Command Compares escape command bytes as predicates evaluated in a Boolean equation to determine trigger s
75. ta For those familiar with Tektronix bus support packages that run on the instrument the disassembly window of DPhyDecoderHSCtl has a similar look and feel However extensive improvements have been made to the basic listing functionality providing sophisticated functions for displaying filtering and searching captured data This includes a packet type summary listing of all packet types in the acquired trace It also includes a video frame summary listing that provides statistics navigation viewing and saving of video frames to files The DPhy Decoder HS is a successor instrument to the DPhy Decoder and has several improvements over its predecessor DPhy Decoder HS DPhy Decoder Supports up to four lanes 2 5 Gbps Supports up to four lanes 1 5 Gbps Supports DPhy DSI CSI 2 version 1 2 Supports DPhy DSI CSI 2 version 1 1 Intended to be upgradable for DSI 2 0 Not upgradable 1 GB acquisition memory 512 MB acquisition memory Efficient lane independent data storage Per lane data storage 33 effective data 50 effective data packing packing at 4 lanes with timestamps Supports Monitor Mode operation using Supports Monitor Mode operation using solder down probes solder down probes Supports new Receive Mode operation No support for Receive Mode operation Page 1 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 using SMA inputs
76. tarting the next frame for DSI was seen LineTime The longest time period between active packets CSI or HSync VSync Start packets DSI Hz The Frequency between Frame Start CSI or VSync Start DSI and the next Frame Start or VSync Start View Click area labeled View to bring up a window displaying the video frame 4 3 4 4 1 Scrolling Disassembly to Frame Start To scroll disassembly to the location of the first packet in the video frame click on the frame number in the video grid The first packet of a video frame is usually the Frame Start or VSync Start packet but if these packets are missing they could be other video packet types Page 43 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 4 3 4 4 2 Viewing Video Frames To view a video frame click on the View cell associated with the frame in the video grid see Figure 9 This brings up the Frame Display dialog showing the captured frame with a title that indicates the frame number being displayed and its dimensions The user can resize the dialog manually using the mouse by grabbing a dialog edge and dragging If the image becomes too large for the dialog size scroll bars appear to pan the image into view The Frame Display dialog has the following controls e Next Prev buttons to single step forward or backward in the frame sequence allowing each frame to be viewed in turn e Play but
77. tate Skew Calibration Sets the trigger flag on a skew calibration burst CRC Error Sets the trigger flag on a packet CRC error ECC Error Sets the trigger flag on a packet ECC error Burst Error Sets the trigger flag on an HS burst error which occurs when valid HS Sync bytes for all active lanes in an HS burst cannot be synchronously detected Any Error Sets the trigger flag on any error CRC error ECC error or burst error Immediately This mode causes immediate triggering once the Run button is clicked Page 10 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 4 2 2 1 Packet Fields Triggering When triggering based on packet fields triggering is a two stage process The first stage selects the set of packets based on packet type for further evaluation The second stage then evaluates these qualifying packets using the designated predicate terms and trigger equation to determine the trigger flag state 4 2 2 1 1 Stage 1 Trigger Selection The first stage selection process of packets for trigger evaluation uses the Trigger Pkt Types which is a checked tree view containing all packet types Top level nodes in the tree view consist of categories of packet types and second level nodes in the tree view represent the packet types themselves Category nodes are not able to be checked by the user but they are checked by software to show that at least one sub node
78. termined by predicate term and trigger equation definition Please refer to section 4 2 2 1 2 for an overview of these controls The main difference in this mode versus packet field triggering is that predicate terms always operate on a composite value derived from LP records rather than fields within a packet This composite value is 10 bits and indicates the current LP state of all lanes including the clock lane The five 2 bit fields represent the LP state of each lane where 0 LPOO 1 LPO1 2 LP10 and 3 LP11 Bit definitions for the fields are as follows 1 0 lane O LP state lane 1 LP state lane 2 LP state 7 6 lane 3 LP state clock LP state For example a mask of 0x300 and a value of 0x100 define a predicate to test if the clock lane is in the LPO1 state 3 Note that in this mode if all terms are set to Unused triggering is disabled Page 13 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 For convenience the field drop down control in this mode contains entries for all combinations of lane and state i e Lane0 in LP00 LaneO in LP01 Clock in LP10 Clock in LP11 Also note that the ByteOff field is unused in this mode and is thus disabled 4 2 2 3 LP Sequence State Triggering When triggering based on LP Sequence State the packet field controls are disabled and triggering is solely determined by predicate term and trigger equation d
79. the four digit value selected represents a logical lane assignment Each position in the four digit value represents a physical lane connector starting with lane 3 down to lane 0 Thus the default setting of 3210 represents a unity mapping of logical lane to physical lane connector Setting the map value to 0123 on the other hand will decode the lane 3 connector as lane 0 lane 2 connector as lane 1 etc Note that there are some restrictive caveats associated with using a non standard lane mapping In particular physical lane O must participate in HS bursts for such traffic to be decoded properly For example if physical lane 0 is used as logical lane 2 then only 3 lane and 4 lane HS bursts will be decoded properly If used as logical lane 3 then only 4 lane HS bursts will be decoded properly Page 8 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Another caveat is in Receive Mode where read response traffic is always output on physical lane 0 regardless of lane mapping Thus effectively Receive Mode responses are only useful if logical lane 0 is mapped to physical lane 0 in the lane mapping Auto HS Freq check box to enable the instrument to automatically detect the clock lane frequency When checked the HS Clk Rate text box is disabled and automatically filled in with the detected clock lane bit rate This mode is very useful and should work correctly for legal DPhy traffic
80. time field reference which determines how the time field is displayed One of these options is always checked Page 33 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 e Relative to Start sets the global time field reference to the first acquired record e Relative to Previous sets the time field reference for each record to the previous displayed record i e displays delta time between records e Relative to Trigger sets the global time field reference to the trigger record e Relative to Cursorl sets the global time field reference to the cursor record e Relative to Cursor2 sets the global time field reference to the cursor2 record 4 3 3 Cursor Control Panel The cursor control panel cursor panel for short is a custom control with three narrow columns on the right side of the listing grid Each narrow column is similar to a vertical scroll bar each associated with either a cursor or the trigger for the purposes of this description the trigger can be thought of as a special cursor with fixed position Cursors represent a specific record position in the listing similar to a scroll bar where the top of the panel represents the start of the listing and the bottom of the panel represents the end of the listing The first column in the cursor panel represents the trigger and 1f enabled is drawn as a red square labeled with a T The trigger cursor is always enabled The
81. tion such as CRC error ECC error or burst don t require any further configuration Other modes require the user to define predicate terms that are then used in an arbitrary Boolean trigger equation Often this equation is simply an ANDing or ORing of predicate terms A common form of triggering is based on packet data where predicate terms are built from comparing masked fields in DSI CSI packets and compared to constants Other trigger modes use LP Signal State lane zero LP Sequence State e g BTA or the lane zero Escape command to build their predicates Page 5 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 4 Using DPhyDecoderHSCtl 4 1 Connecting to the Instrument When the application is started a connection dialog see Figure 1 is shown for the user to select a DPhy Decoder instrument powered on and reachable via USB This dialog can also be brought up for the user to switch instruments using the option in the Control menu labeled Connect to DPhy Decoder Connect Dialog Instrument Serial Ml Fimware update only OK Figure 1 Connection Dialog A drop down control is provided with reachable instrument serial numbers as well as an option called Offline Offline mode allows using the application to be used without a connection to real hardware useful for demonstration of the GUI testing remote control applications and viewing saved disassembly traces Clicki
82. to be displayed indicating that the frame is selected to be saved Clicking on an X unselects the frame Alternatively clicking on the Chk All button selects all frames and clicking on the Chk None button clears all frame selections Once frames have been selected clicking the Save Frames button brings up a save dialog to browse and enter a file name The extension used for the file name indicates the format to use for saving the frame data If the extension is BMP JPG GIF PNG TIFF case is irrelevant the file is saved in the requested format Otherwise the file is saved in binary format exactly as received from the MIPI bus In saving a single frame the file name is used unchanged In saving multiple frames the file name minus extension should end in a number This number will be incremented for each frame saved For example if the save file name is Frame123 bmp and three frames are selected they will be saved as Frame123 bmp Frame124 bmp and Frame125 bmp Note that if the frame is compressed DSC video the file format saved is determined by the file extension as follows e DSC file is saved as compressed DSC file e BMP JPG GIF PNG TIFF file is saved in requested image format e Others file is saved as binary file where only chunk data is written to file 4 3 4 4 4 Stereoscopic Frame Processing DSI 1 2 supports stereoscopic frame transport
83. to enable receive mode operation If checked the instrument connects to the SMA inputs as a true receiver enabling disabling lane terminations during HS bursts according to the DPhy protocol In addition in this mode the user can configure a single short LPDT response packet and or other LP signaling to transmit on lane 0 whenever a BTA is seen on the bus If not checked the instrument operates in monitor mode also called sniff mode using the high impedance solder in probe inputs Disable HS Sync Detect check box to disable HS sync detection during input processing triggering and disassembly Generally this is used only for low level debugging and phy level testing with non protocol data traffic on the DPhy bus Checking this option disables protocol level testing and thus the flagging of protocol errors and protocol statistics Trig Out On Capture Only check box to set the output mode of the Trig Out signal of the instrument If checked the Trig Out signal pulses high only for the trigger condition that causes acquisition If unchecked the Trig Out signal pulses high whenever trigger conditions are met in the stream whether or not the trigger causes acquisition Note that the Trig Out pulse duration is about 160 ns and retriggers within that time lengthen the pulse accordingly Lane Map drop down control to configure a logical to physical mapping of data lanes connected to the instrument Each digit in
84. ton to play and loop the frame sequence at a slow rendering rate not in real time e Frame Slider unlabeled slide control representing the frame sequence with the current slide position indicating the current frame Dragging the slide control selects the current frame e Resize button to force resizing the dialog to fit the acquired frame Page 44 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 A Frame 5 13 640x480 E 10 x i No Auto Resize Prev Next Resize Auto Resize Grow Only 9 Auto Resize Figure 9 Frame Display Dialog In addition the dialog has option buttons to select one of the following resize modes e No Auto Resize e Auto Resize Grow Only e Auto Resize These options determine when the dialog is automatically resized to fit the image Note that the image itself is not resized just the dialog Selecting No Auto Resize means that the dialog is never automatically resized to fit the image Whereas Auto Resize Grow Only causes the dialog to auto resize if it is too small to display the image but not too large and Auto Resize allows the dialog to always adjust to the image it displays Page 45 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 4 3 4 4 3 Saving Video Frames To save video frames to files click on the cell labeled View for each frame you want to save causing an X
85. tton to automate finding an optimal HS Clk Adjust setting by sweeping a delay range This procedure requires valid HS traffic to be continually streaming on the bus as the valid clock window is validated using the detected ECC and CRC error count To use simply click this button to initiate a sweep search within approximately one bit period around the ideal quadrature setting small increments measuring the number of ECC and CRC errors received in a short time period The sweep takes a few seconds and when complete the optimum HS Clk adjustment setting is displayed and assigned to the control Show Disasm button to bring up the disassembly window for acquisition Send button to send the current configuration including trigger settings to hardware and reset the status display In particular this is required operation to update changes made in the trigger configuration controls but otherwise is not necessary for most other Page 9 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 configuration controls as these controls send new values automatically to hardware when changed The user is notified that the Send button should be clicked by the appearance of the text Modified to the lower right of the Send button Note as this process also resets the instrument input logic this button should also be used if the hardware gets into a bad state One possiblity in DSI is if the instrument migh
86. ursor Control Panel sserrep Anieri ia eiiie iia 34 4 3 4 Diassembly Control Panel coin iii 35 e E DE A ta incase sate uc as eda Suan Tie 35 4 3 4 1 1 Acquisition Re 35 4 3 4 1 2 Disassembly Options s isccccsicctssasccavscaveietseoscateveesdeasi sestaacscesedecaseasdens 35 4 3 4 2 Filtet Tab EE 38 4343 Search Tab EE 41 ek Video EE EEee 43 4 3 4 4 1 Scrolling Disassembly to Frame Stam 43 AZ AAD Viewing Video Framesy iccisicissesccasiaseicisvsdaccisasteaes NEEN ee Ee ddeen 44 4 3 4 4 3 Saving Video Frames EE 46 4 3 4 4 4 Stereoscopic Frame Drocesemg 46 4 3 4 4 5 Decoding Compressed DSC Video 46 ASAD Packets Tab Page aria do ina 47 Ae DAO SITTIN ZS Da de 48 4 3 5 lege eege D Eege 48 4 4 Defining Custom Commannd cccscccsssccssssscssssscssssccssssccssssscssssssssssssees 49 4 5 Firmware Update assiccsccssissaccosscasscacavdecrtavecscesevenscucascovesevecneesdiveoesenncevecuesveaceeass 50 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 4 6 Configuration Files scseccssccesvcsesesescesoscesseoceseveccsveenscoseresvenseevenensveenedenaveversservons 51 O COMO TT 51 4 8 lee 52 5 TT 53 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Contacting The Moving Pixel Company Phone Fax Address Email Web site Documentation 1 503 626 9663 US Pacific Time Zone 1 503 626 9653 US Pacific Time Zone The Moving Pixel Company 4905 SW Griffith Drive
87. ut data traffic on the DPhy bus Each statistic is summarized below The ECC byte in packet headers check the integrity of the packet header The ECC is tested for packets sent in both HS and LPDT mode if Escape Mode is enabled Otherwise the ECC is tested and errors can be triggered on only in HS packets Controls and statistics relating to ECC status are ECC Error LED control indicating whether an ECC error occurred since the last update If red an error occurred if green no error occurred Sticky ECC Error LED control indicated whether an ECC error occurred since the last clear event If red an error occurred if green no error occurred a ECC Error Cnt counts the number of ECC errors that occurred since the last clear event The CRC bytes at the end of long packets check the integrity of the packet payload for long packets The CRC is tested for packets sent in both HS and LPDT mode if Escape Mode is enabled Otherwise the CRC is tested and errors can be triggered on only in HS packets Controls and statistics relating to CRC status are CRC Error LED control indicating whether a CRC error occurred since the last update If red an error occurred if green no error occurred Sticky CRC Error LED control indicated whether a CRC error occurred since the last clear event If red an error occurred if green no error occurred Note when any of the ECC CRC or Trigger counts reach 999 milli
88. v Same Mnem Scrolls to the previous record that matches the mnemonic value associated with the current Alt M record Prev Same Val Scrolls to the previous record that matches the ES Alt V current cell s field value Prev Same Mnem Scrolls to the previous record that matches the And Val mnemonic value associated witht the current Alt B record and the current cell s field value Exclude All But Sets and applies the filter criteria to filter all Frame Start records except for CSI Frame Start of DSI Ctl X F VSync Start packets Exclude All But Same Sets and applies the filter criteria to filter all CtLX M Mnem records except those that match the mnemonic Page 32 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 value associated with the current record Exclude All But Same Val Sets and applies the filter criteria to filter all records except those that match the current cell s field value Ctl X V Exclude All But Same Mnem and Val Sets and applies the filter criteria to filter all records except those that match the mnemonic value associated with the current record and the current cell s field value Ctl X B Modify Filter From Current Cell Contains a sub menu with three items Replace Filter Term Add OR Filter Term Add AND Filter Term Selecting one of these menu items will perform the requested function based on the current cell s field nam
89. will display the 16 bit StartColumn and EndColumn parameters respectively Finally note that when the Param fields are added as mnemonic fields using the Mnem Cfg button the actual parameter names are displayed in the mnemonic For this reason in general the user may find it convenient to have the Param fields selected as fields to display in the mnemonic 4 3 2 2 6 LPSeq Field The LPSeq field indicates the LP sequence state of the DPhy Decoder at the time the record was recorded The LP sequence state represents a position in decoding DPhy LP signaling for example the state LP 320 records having seen the sequence LP11 LP10 Currently searching or filtering on the time stamp field when in symbolic mode may not behave as expected as comparisons are made alpha numerically in this radix Page 27 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 LPOO the first three signaling states of a BTA The following LP sequence states are used State LP Seq LP Unk Non LP11 invalid or unknown sequence state Stop LP11 LP Rgst LP11 LP10 LP 320 LP11 LP10 LPOO LP 3202 LP11 LP10 LPOO LP10 BTA LP11 LP10 LPOO LP10 LPOO BTA Exit LP11 LP10 LPOO LP10 LPOO LP10 LP 3201 LP11 LP10 LPOO LPO1 LP Esc LP11 LP10 LP00 LPO1 LPOO LP Esc Exit LP11 LP10 LP00 LPO1 LP00 LP10 HS Rgst LP11 LPO1 HS Prepare LP11 LPO1 LPOO HS In
90. within the category is checked To select a packet type to be included in trigger evaluation the user simply opens the tree node category if closed and checks the desired packet type Note that in this mode if no packets are selected no trigger will result regardless of the trigger equation settings For DSI the top level categories are Generic Commands s DCS Write Commands DCS Read Commands Read Response Commands Packed Pixel Stream Commands Custom Commands For CSI the top level categories are Generic Commands YUV Commands RGB Commands Raw Commands User Commands Custom Commands These categories are mostly self explanatory based on the packet type definitions for each respective MIPI specification The Generic Commands category includes all packet types defined in the specification that do not fall in any of the other categories The Custom Commands category includes user defined data types using the Custom Command dialog Config gt Define Custom Commands menu option Other button controls in this section are Note that both HS packets and LPDT packets are considered for triggering in this mode but only if Escape Mode is enabled Otherwise only HS packets are considered Page 11 The Moving Pixel Company DPhyDecoderHSCtl User s Manual Rev 1 1 6 25 15 Set All checks all the packet types in the tree view Clr All clears all the checked packet types in the

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