QBridge I2C, SPI, CAN Control Software User`s Manual
Contents
1. Read command 0x3 Write command 0x2 Write disable command 0x4 Write enable command 0x6 Read status register command 0x5 Write status register command 0x1 Example gt S gt RD 34 WR 02 WRDI 04 WREN 06 gt RDSR 05 WRSR 01 RD is read command WR is write command WREN is write enable command RDSR is read status register command and WRSR is write status register command SR nn Sets the read command where nn is the data in hex format Example gt SR 34 Sets read command to 0x34 SW nn Sets the write command where nn is the data in hex format e SSnn Sets the read status register command where nn is the data in hex format e STnn Sets the write status register command where nn is the data in hex format SE nn Sets the enable write command where nn is the data in hex format SD nn Sets the disable write command where nn is the data in hex format Binary mode format Get the current control commands 3 s Response Success s Read Write Write disable Write enable Read status Write status register command command command command register command command Failure e followed by an error code listed in Section 2 5 2 e Set the command register 5 s r w s d e t value Where r is read command w is write command s is read status register command t is write status register command e2. Response Success a is returned followed by delay value q delay Failure e followed by an error code listed in Section 2 5 2 e Sets delay o 4 d New delay Response Success d is returned Failure e followed by an error code listed in Section 2 5 2 6 9 Command T Command E enables the SPI write latch ASCII mode Format t Binary mode format 3 T Response Success t is returned Failure e followed by an error code listed in Section 2 5 2 6 10 Command Q Command Q writes to the status register if any ASCII mode Format Q nn where nn is the new status register value which is in hex format Binary mode format O 4 q value Response Success q is returned Failure e followed by an error code listed in Section 2 5 2 6 11 Command M Command M transfers the SPI application menu to Main menu ASCII mode Format m Binary mode format o 3 m Response Success m is returned Failure e followed by an error code listed in Section 2 5 2 6 12 Command L Command L toggles the address mode between 16 bit and 8 bits This setting determines whether 16 bit address or 8 bit address is used when write and get date from SPI device Please read your SPI device datasheet to decide which mode should be used 16 bit address mode is
3. Revision Software Date Description Version 1 0 3 2004 Initial release 1 1 5 2005 Added description for new pins layout to external target Removed command A in the I2C menu and add the list for the error codes Added command x in the SPI menu for raw data write 1 2 1 5 7 2005 Update the manual to support QBridgeV2 Command e enable write latch of the SPI commands is changed to t to support Binary mode Add section for Binary mode Add command r for Binary mode 1 3 1 6 9 2005 Default baud rate is 9600 bps instead of 57Kbps 28
4. e followed by an error code listed in Section 2 5 2 20 6 SPI application menu 4 gt Connected 0 05 47 ivT100 57600 8 N 1 SCROLL CAPS NUP A ASCII mode term HyperT erminal Al ES Elle Edit View Cal Transfer Help EERE ELAR B B B RRE AEREA z AREER ARA EEE t t Application Menu Set clock polarity Set clock rate x Get bytes Write data with WR enable latch Write data without WR enable latch Set instruction format Set slave address z Write delay up to 255 m8 Enable Write Latch Write Status register E Back to main menu Display SPI menu FERRERA RARA AAA oko ko ko ok ok oko oko oko ok ok ok ok ok ok oko ko kk kk ARA AAA AAA 0 S30 B OU u tzszmtu eu gt zs Binary mode S is returned 6 1 Command P Command P sets SPI clock edge and polarity ASCII Mode Format P gets the current SPI clock edge and polarity PO SPI clock edge is idle low data transmitted in falling edge P1 SPI clock edge is idle low data transmitted in rising edge This setting is power on default P2 SPI clock edge is idle high data transmitted in rising edge P3 SPI clock edge is idle high data transmitted in falling edge Binary Mode format 2 e Get current operation mode 3 P Response Success p nn nn 0 SPI clock edge is idle low data transmitted in fall
5. followed by an error code listed in Section 2 5 2 5 6 Command D Command D will show CAN filter mask transmit and error register values ASCII mode Format gt D Example gt MO X 0x1FFFFFFE S 0x000007FF F0 X 0x12345678 F1 S 0x00000678 gt M1 X 0x1FFFFFFF S 0x000007FF gt F2 X 0x000001BC F3 S 0x000001BC F4 X 0x00000000 F5 X 0x00000000 gt T0 S 0x00000678 FF EE DD 05 04 03 02 01 gt T1 X 0x12345678 A5 34 31 88 77 99 EF 5A gt T2 XR 0x000001BC gt TxErr 00 RxErr 00 Invalid Msg cntr 00 Bus Err Cntr 00 gt Mask 0 is Ox1FFFFFFE for extended frame or 0x000007FF for standard frame Filter O is extended frame 0x12345678 Filter 1 is standard frame 0x00000678 Mask 1 is OX1FFFFFFE for extended frame or 0x000007FF for standard frame Filter 2 is extended frame 0x000001BC Filter 3 is extended frame 0x000001BC Filter 4 and 5 are extended frame 0x00000000 16 Transmit buffer O is standard frame id 0x00000678 data FF EE DD 05 04 03 02 01 Transmit buffer 1 is extended frame id 0x12345678 data A5 34 31 88 77 99 EF 5A Transmit buffer 3 is remote standard frame id 0x000001BC Note CAN message framing format X standard frame R remote frame S standard frame Binary mode format 0x3 d Response Success q x Mx03 Mx02 Mx01 Mx00 s Ms03 Ms02 Ms01 Ms00 x Mx13 Mx12 Mx11 Mx10 s Ms13 Ms12 Ms11 Ms10 x s F03 F02 F01 FOO x s
6. Pins layout for QBridge purchased before April 2005 A female DB9 is for Host RS232 connection and a 9 pins header for external target 9V Boot GND SS SCK SDI SDA SDO CANH CANL HOST Pins layout for QBridge purchased after May 2005 i HOST TO External Target A female DB9 is for Host RS232 connection and a male DB9 connecter is used to connect external target Pins layout for external target male DB9 is shown below 5 9V 9 Boot 4 GND 8 SS 3 SCK 7 SDI SDA 4 SDO 6 CANH 1 CANL 2 3 Diagram to connect to SPI or I2C device QBridge SPI or 12C device SS SS SPI only SCK SCK PC with SDI SDA SDO Hyper SDO SDI SPI only terminal 2 4 Diagram to connect to CAN device QBridge CAN device PC with Hyper terminal 2 5 ASCII mode and Binary mode QBridge V2 supports both ASCII and Binary mode The ASCII mode allows user to utilize the Windows Hyper Terminal to control the device while the Binary mode allows user to write his own application to interface with QBridge The Mode selection can only be done once after the device is powered up The Binary mode is automatically selected if there is no character any character sent to the device within five seconds after the power up Character m indicates the current state is Main Menu is sent out from QBridge to the Host once the Binary mode is e
7. Response Success m is returned Failure e followed by an error code listed in Section 2 5 2 3 6 Reset Status At main menu it will show the current status of the reset register value reset source and the software checksum The reset register and reset source values are only for debug purpose when report problem to Q proto system 4 12C Application Menu e ASCII mode term HyperT erminal i DI ES File Edit View Call Transfer Help Diae amp 58 0 85 E dede ode dede RE RARE RE n B 6 B8 6 RE 6 6 B6 6 RE B8 Bn B8 RARA RARA I2C Master Application Menu cS Send Start bit Send Repeat start z Send Stop bit E IZC baud rate E Set Slave Address M Write one byte E Read message up to 64 bytes E Transmit message up to 32 bytes Read one byte with Ack A Read one byte w o Ack i Reset IZC device Byte Write Delay XX m3 Back to main menu El Display IZC menu EPERREERERE RE AEREA ERE RAR AEREA ERA AAA AAA AA gt e Binary Mode i is sent to the Host 4 1 Command S Command S will send the 12C start bit Binary Mode format o 3 s Response Success s is returned Failure e followed by an error code listed in Section 2 5 2 4 2 Command P Command P will send the 12C repeated start bit Binary Mode format 3 p Response Success p is returned Failure
8. is enable write command and d is disable write command Response Success s is returned Failure e followed by an error code listed in Section 2 5 2 6 7 Command A Command A sets the SPI slave address Power on default is 0x0 ASCII mode Format e A 24 Shows the current slave address AH nn Sets the high byte of the slave address where nn is the high address in hex format AL nn Sets the low byte of the slave address where nn is the low address in hex format Example gt a gt Slave Address 0x0003 gt ah 12 gt al 4f gt a gt Slave Address 0x124F Binary mode format e Gets the current address 3 a Response Success a is returned followed by address high and address low a Address high Address low Failure e followed by an error code listed in Section 2 5 2 e Sets address 5 a h l Address value Response Success a is returned Failure e followed by an error code listed in Section 2 5 2 6 8 Command D Command D sets an interval that is inserted between write cycles when command W or N is issued ASCII mode Format D Show current interval Dnn Sets the interval to nn where nn is in hex format Example gt d gt SPI write delay 0x0A gt d 34 gt d gt SPI write delay 0x34 Binary mode format e Gets the current delay 3 d
9. to the host application in the same way to Hyper Terminal The default baud rate is 9600 bps e Command format from Host to QBridge o Command Command identifier Data if any length All commands are lower case Example Once the device is entering the Binary mode after the power up user likes to send a command I to enter the 12C application Packet 0x40 0x3 0x69 shall be sent to the device 0x3 0x69 T e Response from QBridge to host The reply from QBridge is the original command identifier followed by data if any when the operation succeeds If an error is encountered an error identifier e followed by error code is returned to the host Example navigate the QBridge from main menu to SPI application after the Binary mode is selected Packet 0x40 0x3 0x73 s is sent to the host 0x73 s is returned to the host is SPI application is active 0x65 e xx is returned to the host where xx is the error code Error codes Error response Description 0x01 Invalid parameter 0x03 Invalid command 0x50 Unknown SPI speed 0x51 SPI write timeout 0x52 Error when enable write command 0x53 SPI read timeout 0x54 SPI read status register timeout 0x55 SPI write status register timeout 0x30 12C set speed error 0x31 12C send data or START bit failure 0x32 12C
10. where xx is number of millisecond delay in hex format Example L 10 Set write delay to 16 ms Binary Mode format 3or4delay T Delay if needed value is set 11 Response Success I Failure e followed by an error code listed in Section 2 5 2 4 12 Command M Command M will transfer the current I2C sub menu to main menu ASCII mode Format gt M Binary Mode format 3 m Response Success m Failure e followed by an error code listed in Section 2 5 2 4 13 Command Command will display the entire I2C sub menu again ASCII mode Format gt Binary mode format 3 2 Response Success i is returned Failure e followed by an error code listed in Section 2 5 2 4 14 Error code listing for ASCII mode One of the following error codes will be returned if command is failed to execute Error code Description 1 Time out when sending data or start bit 2 Timeout when sending STOP bit 4 No ACK from slave 8 Receive overflow 0x10 Timeout when reading data 0x20 Timeout when acking to slave ACKDT 0x40 Bus collision 12 5 CAN controller area network Application Menu e ASCII mode term HyperT erminal Al ES Edit View Call Transfer Help piel gll lol e EXA RARA AAA AAA AAA AAA AAA AAA AAA AAA AAA AA AAA CAN Application Menu i Configur
11. Command L e id Ta iio 26 6 13 Comma d A aaea aee aaa a a Ea aeaa aae a a aaea aaaea Si EEEN 27 6 14 Comniand X enne null ee atch eae alee Da E E Ac o 27 7 Revision HIStOTY A 28 1 Introduction 1 1 What QBridge can do QBridge is a single board computer provides an efficient and economical way to connect I2C SPI or CAN optional feature to the PC RS232 port It quickly turns any PC into an I2C SPI mater or CAN node 1 2 Disclaimer While every effort has been made to ensure that the information contained in this manual is accurate and complete no liability can be accepted for any error and omission Q Proto system reserves the right to change the specification of the hardware and software described herein at any time prior notice Q Proto System shall not be liable for direct indirect incidental general or consequential damage from the use of the products from Q Proto system If you do not agree with these terms do not buy the products 1 3 Operational Format All the QBridge operation is based on HEX format 1 4 QBridge V2 QBridge V2 is the enhanced version of QBridge that supports Binary mode Software Version 1 5 or higher is required to support the Binary mode 2 How to use QBridge 2 1 Power up the QBridge An external 9 V shall be applied to QBridge for its normal operation 2 2 Pins layout QBridge purchased after April 2005 has pins layout slightly different from previous version
12. Control bits number of data 8 16 bits CRC 2 ACK 7 EOF bits Extended frame will have 29 bits ID instead of 11 bits Dropped packet counter is the counter for all the dropped packets when received buffers are overrun Example1 gt Recv 12345678 X F00 A5 34 31 88 77 99 EF 5A T 131F D 00 Received message ID is 0x12345678 X is extended frame from filter O packet is A5 34 31 88 77 99 EF 5A timestamp is 0x131F dropped packet counter is 0 Example2 gt Recv 000001BC RX F02 T 17A2 D 00 Received message remote extended frame ID is 0x1BC timestamp is 0x17A2 no dropped packet Binary Mode format In Binary mode message receiving is not automatic as in ASCII mode A command r must be issued to get the messages in the buffer One message can be retrieved at a time Application shall continue issue r command until an error code Ox4B is returned Command 3 f Response Success Y CAN ID byte 3 CAN ID byte 2 CAN ID byte 1 CAN ID byte 0 Flag length Data 0 Data 1 Data 3 Data 4 Data 5 Data 6 Data 7 Timestamp high Timestamp low Counter of RX error dropped counter packets TX error counter Where Flag is define as flowing Bit 7 Bit 6 Bit5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Received Remote Extended Invalid RX RX filter number Double frame frame message overflow 000 filer O buffer 001 filter 1 010 filter 2 and so on Failure
13. F13 Fi2 Ft1 Frio xs Fe3 F22 F21 F20 xs F33 F32 F81 F80 xs F43 F42 F41 F40 Los F53 F52 F51 F50 TXO TXO TXO TXO x s r t ID 3 ID 2 ID1 IDO TXO Tx0 Tx0 Tx0 Tx0 Tx0 Tx0 Tx0 Tx0 TX1 TX1 TX1 TX1 x s r t length DO D1 D2 D3 D4 D5 D6 D7 ID 3 ID 2 ID1 IDO TX1 Tx1 Tx1 Tx1 Tx1 Tx1 Tx1 Tx1 Tx1 TX2 TX2 TX2 TX2 x s r t length DO D1 D2 D3 D4 D5 D6 D7 ID 3 ID 2 ID1 IDO TX2 Tx2 Tx2 Tx2 Tx2 Tx2 Tx2 Tx2 Tx2 length DO D1 D2 D3 D4 D5 D6 D7 Where Mx03 Mx00 Mask 0 in extended frame format Ms03 Ms00 Mask 0 in standard frame format Mx13 Mx10 Mask 1 in extended frame format Ms13 Ms10 Mask 1 in standard frame format F03 F00 Filter 0 The x s preceding to this data is the frame bit F13 F10 Filter 1 The x s preceding to this data is the frame bit F23 F20 Filter 2 The x s preceding to this data is the frame bit F33 F30 Filter 3 The x s preceding to this data is the frame bit F43 F40 Filter 4 The x s preceding to this data is the frame bit F53 F50 Filter 5 The x s preceding to this data is the frame bit Tx0 ID3 IDO Tx buuferO CAN ID Los rt x is extended frame s is standard frame r is remote standard frame r is remote extended frame TXO length Length of Tx bufferO Tx0 DO D8 Tx buffer 0 data Tx1 ID3 IDO Tx buufer1 CAN ID Qs rt x is extended frame s is standard frame r is remote standard frame r is remote
14. G TES 10 4 7 A 10 4 8 Command A m 10 4 9 Command Di o aaa 11 410 CO ies 11 4 11 A Seca sede teeth ceed aa aasa aeaa Sa aidaa caaaeii nans 11 4 12 COMMANd M a cane ee tee aaa ada ates tace ea r aa Pope taa deaa Cantu ea ne Saraan 12 443 Command Pe E E E T 12 4 44 Error code listing for ASCH mode eese eeeeeee nennen nennen nnne 12 5 CAN controller area network Application Menu 13 5 1 Command eco 13 5 2 COMTI AN MILLE 14 5 3 COMMANG Bi ag 14 5 4 Comniand Oise ec e 15 5 5 Command Mi ii 16 5 6 Command D net ete lote temen aE a aE Taa aaraa Eaa aane cu Re Te eria 16 5 7 Command S rau a aniones 17 5 8 Gomniand A huis dee ID n Er Md DN E 18 5 9 Command e reit 18 510 Comman N CE 19 5711 Command Liisa eaa id ad az 19 5 12 A O TO 19 5 13 CAN message receiving occ 19 6 SPlapplicaltion men iii is 21 6 1 Command P nre a aii 21 6 2 Command Boudin E 22 6 3 COMIMAN GO e ocio ii id aia 22 6 4 COMMON eT Em 23 6 5 Commiand Nin 23 6 6 CONTIN ILE 23 6 7 Command A 24 6 8 Command opp 25 6 9 lenTuurub5mpp EE 26 6 10 COMMON ex Lee unies 26 A senate vans naacede sacces cocsasetececdaenadesdaaeecnacessacecssusistaacedeesenace 26 6 12
15. QBridge I2C SPI CAN Control Software User s Manual Date 9 10 2005 Rev 1 3 T1 INTFOQUCIHION ii adi 1 1 1 What QBridge can do E E E rr 1 1 2 DDISGIAIIMNG e E 1 1 3 Operational Format sosiaa eiui ieiciie ceda ideada cana 1 1 4 enn 1 2 How to USE OBOE id 1 2 4 Power up the OBridge eeeeeeeeeeieseseeeeeseneeeeen seen nsns nnne tnn n nnns annm ann nn nts 1 2 2 Pins layout eee neue casia te se ctte Er I A t e LL t TIE 1 2 3 Diagram to connect to SPI or I2C device seen 2 2 4 Diagram to connect to CAN device ooommoninnncconccnnnnnncrennncccarnnncr racer cerrar 2 2 5 ASCII mode and Binary Mode ooommcccnnnnncnoncnnonoconnnn rn 2 De IMAI MGI A a E T 5 3 1 Command if 12C feature is purchased oooocccocccoconnnccononnnnnnnnoncnncnnnnnnnnennnnanenn ranas 5 3 2 Command C if CAN feature is purchased occccocooccccncoconononnnononcnnnnnnnonnnannnrnnnnnnnnrnnans 5 3 3 Command S if SPI feature is purchased eese 5 3 4 C ommand B oirein cece 6 3 5 Command e E E E E E A E A ate T 6 3 6 Reset Stalus unius iiem area PAu dE Na aaa 6 4 12C Application Men 0 ii ia a a a do quaa adno Sas 0o cus odo oe oi ce 8 4 1 CM O idas 8 4 2 Command aeu 8 4 3 COMMAMNA dme 9 4 4 COMMON dec 9 4 5 GCommand W ue eee ead a Sak sa eae six dt 9 4 6 COMMA
16. d rate to 500 K bits B3 Set baud rate to 250 K bits B4 Set baud rate to 125 K bits B5 Set baud rate to 100 K bits B6 Set baud rate to 50 K bits Binary Mode format e Get current Baud rate 3 b Response Success b nn nn 0 1MBits nn 1 800KBits nn 2 500KBits nn 3 250KBits nn 4 125KBits nn 5 50KBits e Set to predefined Baud rate 4 b nn Success b is returned Failure e followed by an error code listed in Section 2 5 2 5 4 Command O Command O will change the CAN operation mode ASCII Mode Format O n 0 1 2 3 4 Where n is the mode to change to O Show the current CAN operation mode O0 Set to configuration mode e O1 Set to disable mode 02 Set to operation mode 03 Set to listen mode 04 Set to loop back mode Binary Mode format e Get current operation mode o 3 o Response Success o nn nn 0 configuration mode nn 1 CAN is disabled nn 2 operation mode nn 3 listen mode nn 4 loopback mode e Set to predefined Baud rate 4 o nn Success o is returned Failure e followed by an error code listed in Section 2 5 2 5 5 Command T Command T is loop back test mode ASCII mode Format T Binary mode format 0x3 t Response Success t Failure e
17. e followed by an error code listed in Section 2 5 2 4 3 Command T Command T will send the 12C Stop bit that terminates communication Binary Mode format 3 t Response Success t Failure e followed by an error code listed in Section 2 5 2 4 4 Command B Command B will set the 12C clock speed ASCII Mode Format B Show the current 12C clock speed BO Set 12C clock speed to 100K B1 Set I2C clock speed to 400K Binary Mode format 4 b 0 1 Response Success b is returned Failure e followed by an error code listed in Section 2 5 2 4 5 Command W Command W writes one byte to the 12C bus No Start will be sent in this command User shall send Start bit command S if it is needed ASCII Mode Format gt W xx where XX is the Hex format of data Example W ef If command is failed to send error code can found in Section 4 14 Binary Mode format O 4 w data Response Success w Failure e followed by an error code listed in Section 2 5 2 4 6 Command G Command G will read multiple bytes from 12C slave Start bit is NOT used in this command due to varied device architecture User shall send the Start bit and address bytes properly before this command is used There is no ACK for the last read and Stop bit is sent at the end of this command ASCII Mode Format e Gxx Where xx is nu
18. e Latch before each write to slave An interval will be inserted between write cycles which can be set with command D Default address may be set with command A Slave Address will be incremented after this operation ASCII mode Format w 12 34 56 If slave address is 0x0 before the operation it will be set to 0x3 after the operation Binary mode format w length Data0 E Data n Where length depends on the size of the packet Response Success w Address mode Address Address 16 bits when value is Oxff 8 high low bits mode when value is O Failure e followed by an error code listed in Section 2 5 2 6 5 Command N Command N is similar to command W except it won t issue the Enable Write Latch command between write cycles ASCII mode Format n 12 34 56 If slave address is 0x0 before the operation it will be set to 0x3 after the operation Binary mode format Command n length Datao ET Data n Response Success n Address mode Address high Address low Data up to 32 bytes Where address mode is 16 bits when value is Oxff or 8 bits when value is 0x0 Failure e followed by an error code listed in Section 2 5 2 6 6 Command S Command S sets the control command format ASCII mode Format 23 This command gets the current control commands Power on default value
19. e BAUD registers Write Register Baud rate Mode selection Test Loop back function Display MSG configuration x Send Message Abort all transmission Back to main menu A Send MSG periodically MSGs interval up to 255 m3 Display CAN menu EPREFERENEBEEE NENA ERE b bbb utn B AR c wW B o T D S A M N L 4 gt Connected 0 02 34 ivr100 57600 8 N 1 SCROLL CAPs NUF 4 e Binary mode A character c is sent to the host 5 1 Command C Command C will let you configure the Baud rate registers for PIC18F258 Please refer to the PIC18F258 datasheet for details ASCII Mode Format e gt Caa bb cc dd ee Set baud rate registers gt C show baud rate registers C BRGCON1 BRGCON2 BRGCONS will be echoed to host Where aa is Baud rate prescaler bits bb is Synchronized jump width bit cc is propagation time select bits dd is phase segment 1 bit ee is phase segment 2 bit Binary Mode format Configure the all baud rate registers 8 Cc aa bb cc dd ee 13 Response Success c is returned Failure e followed by an error code listed in Section 2 5 2 Read the Baud rate register Q 3 C Response Success Cc BRGCON1 BRGCON2 BRGCON3 Failure e followed by an error code listed in Section 2 5 2 5 2 Command W Command W will allow you write value to CAN receive filter and mask regist
20. ers In the ASCII mode the QBridge CAN receiver module is always active Once a matched CAN message is received it will be shown on terminal In the Binary mode the command r shall be issued to retrieve data Refer to section 5 13 for details ASCII mode Format gt W r mo m1 fO f1 f2 nnnn f s x r t Where r is register to write nnnn is the value in hex format f is the framing format bit Register r definition mO receive buffer O mask register m1 receive buffer 1 mask register f0 receive buffer 0 filter O register f1 receive buffer O filter 1 register f2 receive buffer 1 filter 2 register f3 receive buffer 1 filter 3 register f4 receive buffer 1 filter 4 register f5 receive buffer 1 filter 5 register Framing bit definition S Standard frame X Extended frame R Remote standard frame T Remote extended frame Example w m0 34ef x Configure mask 0 register to extended frame with value 0x34e Binary Mode format o OxA w m f 0 5 Byte3 Byte2 Byte1 ByteO s x r t Response Success w Failure e followed by error code 5 3 Command B Command B will configure the baud rate Power on default is 125K ASCII Mode Format B Display the current baud rate Note that baud rate will not be shown properly if command C is used to set to customized baud rate prior BO Set baud rate to 1M bits 14 B 1 Set baud rate to 800 K bits B2 Set bau
21. extended frame TX1 length Length of Tx buffer 1 Tx1 DO D8 Tx buffer 1 data Tx2 ID3 IDO Tx buufer 2 CAN ID Qs rt x is extended frame s is standard frame r is remote standard frame r is remote extended frame TX2 length Length of Tx buffer 2 Tx2 DO D8 Tx buffer 2 data All values shown above are already adjusted according to the frame bit Failure e followed by an error code listed in Section 2 5 2 5 7 Command S Command S will transmit the CAN message to a specified buffer ASCII mode Format S x 0 1 2 nnnn f x s r t aa bb cc dd 17 Where x is the buffer number nnnn is the CAN id in hex format f is the CAN message format bit aa dd are CAN data up to 8 bytes Message format x s r t where x is extended frame s is standard frame r is remote standard frame t is extended frame Note that when remote frame is sent user should still send dummy data byte even receiver ignores it because some CAN application will expect remote frame data length is the same as returned data length Example S 0 1234edf x 11 22 3e 4d Sending extended frame 0x1234edf with data packet 11 22 3e 4d to transmit buffer 0 S1 3ef t 00 00 00 Sending extended remote frame id Ox3ef data length is 3 Binary mode format Length s 0 1 2 CANID byte3 CANID byte2 CANID byte1 CANID byte 0 x s rt Byte 0 Byte 1 Byte2 Byte3 Byte4 B
22. ing edge nn 1 SPI clock edge is idle low data transmitted in rising edge nn 2 SPI clock edge is idle high data transmitted in rising edge nn 3 SPI clock edge is idle high data transmitted in falling edge Set to predefined Baud rate o 4 p nn Success p Failure e followed by an error code listed in Section 2 5 2 6 2 Command B Command B sets the SPI clock speed rate ASCII mode Format B Show the current speed Power on default is 250 K BO Set clock speed to 4 MHz B1 Set clock speed to 1 MHz B2 Set clock speed to 250 KHz Binary Mode format Get current operation mode 3 b Response Success b nn nn 0 4Mhz nn 1 1Mhz nn 2 250Khz Failure e followed by an error code listed in Section 2 5 2 6 3 Command G Command G gets numbers of data from SPI slave device Default address may be set using command A ASCII mode Format gt g 10 gets 16 0x10 bytes from device Binary mode format o 3 g Number of bytes up to 32 bytes Response g Address mode Address high Address low Data up to 32 bytes Where address mode is 16 bits when value is Oxff or 8 bits when value is 0x0 Failure e followed by an error code listed in Section 2 5 2 6 4 Command W Command W writes user input data to SPI slave device This command will automatically enable the Write Enabl
23. lowed by an error code listed in Section 2 5 2 4 8 Command R Command R reads one byte from slave with acknowledge bit at the end User shall use command W to specify slave and word address if a particular location is accessed ASCII Mode Format gt R 10 Binary Mode format 3 r Response Success r followed by the read data Failure e followed by an error code listed in Section 2 5 2 4 9 Command D Command D reads one byte from slave without acknowledge bit at the end User shall use command W to specify slave and word address if a particular location is accessed ASCII mode Format gt D Binary Mode format O 3 d Response Success d followed by the read data Failure e followed by an error code listed in Section 2 5 2 4 10 Command Command reset I2C controller to the known state 12C write delay is set to OxA ms 12C clock speed will be first fetched from NVRAM or set to 100K if NVRAM value is corrupted ASCII mode gt i Binary Mode format 3 d Response Success i Failure e followed by an error code listed in Section 2 5 2 4 11 CommandL Command L will set the interval between each data byte sent to salve Because 12C is used often in EEPROM application an internal write delay is needed for EEPROM programming ASCII mode Format gt L show the current delay value gt L xx Set the delay
24. mber of bytes to read xx is in Hex format Restriction This command allows only 64 bytes hex 0x40 of data to read at a time Example S Send Start bit gt W AO lt Send Control byte with W bit set Device address is 0 in this example gt W 0 lt Word Address gt P Repeated Start gt W A1 Send Control byte with R bit set gt G 12 lt Get 0x12 byte of data from salve word address 0x0 Stop bit is inserted If command is failed to execute error code can be one of the following Binary Mode format 3 g Response Success g Failure e followed by an error code listed in Section 2 5 2 4 7 Command Q Command Q writes multiple bytes up to 32 bytes to I2C slave Both start bit and stop bit are used in this command A preset interval will be inserted between each data byte This interval may be set with command L Most of the time the first byte is control byte and the second or third byte is address byte followed by data bytes ASCII Mode Format e Qxx yy zz Start bit will be sent before xx yy zz are sent and Stop bit is set at the end Restriction Only up to 32 bytes of data is allowed to write at a time Binary Mode format length q Data0 A Data31 Length is depending on the number of data to write Example o 7 q 0x11 0x4d 0x57 0x68 Response Success w is returned Failure e fol
25. ntered The ASCII mode is selected if there is any character sent to the QBridge from host within 5 seconds after the device is powered up Traditional ASCII main menu will be shown once the ASCII mode is entered For software version 1 6 or later a banner QBridge by Q Proto System is always sent out from the device to the host when power up regardless of the mode 2 5 1 ASCII mode The ASCII mode is the legacy mode that QBridge supports It uses the Windows Hyper Terminal to control the device e Connect to Hyper terminal QBridge connects to PC via RS232 port It uses Windows Hyper Terminal program to send commands and receive data The setting for Hyper Terminal is 9600 baud rate 8 data bits 1 stop bit no parity bit Xon Xoff flow control and also check echo typed character locally and set 30 milliseconds to line delay Example setup is shown below ASCII Setup mi Iv COM1 Properties 2 5 2 Binary mode The Binary mode extends the flexibility to allow user to develop his application The Binary mode is only supported in QBridge V2 hardware with software version 1 5 or higher Software version can be found from the main menu in the ASCII mode The application shall wait for character m from QBridge to ensure Binary mode is entered when power up No data shall be sent to the device within the five seconds after the power up otherwise ASCII mode is selected e Connect to QBridge The QBridge connects
26. send STOP bit failure 0x33 12C salve no ACK 0x34 12C receiver buffer overflow 0x35 12C read data timeout 0x36 12C ACK slave time out 0x37 12C bus collision 0x38 I2C send data error Ox3F I2C unknown error 0x40 Unknown CAN operation mode 0x41 Invalid CAN register 0x42 Invalid frame bit 0x43 Invalid character 0x44 No CAN data 0x45 Invalid CAN data length 0x46 Invalid nibble count 0x47 Invalid Baud rate 0x48 TX failure 0x49 Invalid TX buffer 0x4A Initialization failure 0x4B No CAN data 0x4D Invalid Tx buffer length 0x4E Unable to set CAN operation mode 3 Main Menu 3 1 Command if I2C feature is purchased command will transfer the main menu to I2C sub menu e ASCII Mode Lo 9500com HyperTerminal AA File Edit view Call Transfer Help gt QBridge by Q Proto System x q x Q Bridge V2 Main Menu I gt I2C Sub Menu C CAN Sub Menu S SPI Sub Menu B gt Change RS232 baud rate Display main menu Copyright of Q Proto System Rev 1 6 09 2005 Boot Version RST Reg x1C RST Src 0x06 Chksum 0xFF DE FE FE FE 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 DE DE DE E HH xs Es Connected 0 00 17 ANSIW 9600 8 N 1 SCROLL caps mum Capti 7 X X 0X 0X 0X 0X X k X X Sox ox x ok E e e Binary Mode format 3 7 Response Success I Failure e followed by an error code li
27. sted in Section 2 5 2 3 2 Command C if CAN feature is purchased C command will transfer the main menu to CAN controller area network sub menu Binary Mode format 3 c Response Success c Failure e followed by an error code listed in Section 2 5 2 3 3 Command S if SPI feature is purchased S command will transfer the main menu to SPI sub menu Binary Mode format 3 s Response Success s is returned Failure e followed by an error code listed in Section 2 5 2 3 4 Command B ASCII mode B command will configure QBridge to different Baud rate BO Set Baud rate to 9600 bps This is the default setting B1 Set Baud rate to 19200 bps e B2 Set Baud rate to 57600 bps B3 Set Baud rate to 125K bps Binary Mode format Get Baud rate 3 b Response Success b is returned followed by the baud rate 3 b 0 3 Failure e followed by an error code listed in Section 2 5 2 e Set Baudrate 4 b 0 3 same as ASCII mode Response Success b is returned Failure e followed by an error code listed in Section 2 5 2 Note Power must be cycled in order for the new Baud rate to take effect 3 5 Command Command will display the main menu again ASCII mode Format Binary mode format 3 P
28. used by default 26 ASCII mode Format gt L Binary mode format e Gets the current address mode O 3 T Response Success I is returned followed by address mode q value Where Address mode is 16 bits when value is Oxff 8 bits when value is 0x0 Failure e followed by an error code listed in Section 2 5 2 e Sets address mode 4 T value Value Oxff set to 16 bits mode Value 0x0 set to 8 bits mode Response Success I is returned Failure e followed by an error code listed in Section 2 5 2 6 13 Command Command will display the entire SPI application menu ASCII mode format Format gt Binary mode format 3 2 Response Success s is returned Failure e followed by an error code listed in Section 2 5 2 6 14 Command X Command x writes all user input data to the SPI salve There is NO Write enable latch command inserted between data Address bytes are not affected by this command ASCII mode Format gt x 12 4d Hex data 0x12 and 0x4d will be sent to SPI bus Binary mode format Command x length Data0 ME Data n Where length depends on the size of the packet 21 Response Success x is returned Failure e followed by an error code listed in Section 2 5 2 7 Revision History
29. when messages are sent with command N Power on default value is OxA ms ASCII mode Format L 20 Set interval to 32 0x20 milliseconds Binary mode format e Get current delay 3 Response Success Y nn Where nn is the delay in milliseconds e Set delay 4 d nn Success I is returned Failure e followed by an error code listed in Section 2 5 2 5 12 Command ASCII mode Command will display the entire CAN application menu again Binary mode format 3 Kd Response Success c is returned Failure e followed by an error code listed in Section 2 5 2 5 13 CAN message receiving 19 ASCII mode Once CAN application is entered CAN message receiver module is automatically enabled Whenever a matched message is received it will be displayed on the console Message is shown in the following format lt ID gt lt Type gt lt Filter gt lt Data0 Data8 gt lt Timestamp gt Dropped packet counter gt ID is the CAN message ID in hex format Type is the CAN message type R is remote frame X is extended frame S is standard frame Filter is the received hit filter ranges from 0 5 Data0 Data8 is the CAN data packet Timestamp is the received CAN message timestamp in 2 microsecond resolution Note The total of bits for standard CAN message is calculated as of following SOF 11bit ID RTR 6
30. yte5 Byte6 Byte7 Where Length varies with size of the data Example Send CAN message ID 0x2345 extended frame data 0x1 0x2 0x3 0x4 to TX buffer 1 OxD s 1 00 00 23 45 x 0x1 0x2 0x3 0x4 5 8 Command A Command A aborts all current transmission actives ASCII mode Format gt a Binary mode format O 0x3 a Response Success a Failure e followed by an error code listed in Section 2 5 2 5 9 Command M Command M transfers from CAN application to Main menu ASCII mode Format gt m Binary mode format 0x3 m Response Success m Failure e followed by an error code listed in Section 2 5 2 18 5 10 Command N Command N will continuously send a preset CAN message for a specified number of times A delay is also inserted between messages sent and delay can be set with command L ASCII Mode Format N x nn Where x is the CAN transmit buffer number between 0 and 2 nn is number of times to repeat this message which is up to 255 times Example N 2 20 send TX buffer 2 for 32 hex 0x20 times Binary mode format 5 n Buffer number 0 1 2 Number of times to send Response Success n Failure e followed by an error code listed in Section 2 5 2 5 11 CommandL Command L will set the interval between each sent message
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