Murata MEMS Evaluation Unit User Manual
Contents
1. 31 9 3 1 Analog IO O 31 932 Digital lO E 32 Murata Electronics Oy Subject to changes 3 32 www muratamems fi Doc Nr 82169500 Rev A muhata Murata MEMS Evaluation Unit User Manual 1 Introduction The Murata MEMS Evaluation Unit is a tool for evaluating component functionalities and key properties for several different sensor families The main features of the Murata MEMS demo graphical user interface GUI include View output data values on charts and on numeric indicators Change chart ranges freeze zoom and take snapshots Data averaging and standard deviation calculations Save output data to file View sensor status registers Read and write other sensor registers Send macro commands to the evaluation board This document covers the actions needed to install the necessary drivers and the Murata MEMS demo GUI software The document also shows the different features of the GUI and how to use them The GUI supports both Windows and Linux operating systems using 32 or 64 bit processor architectures A USB connection is required for data transfer between the evaluation board and the PC In addition to the Hardware overview section the end of this document covers more detailed hardware information 2 Quick start for using the Murata MEMS Evaluation Unit Please follow the steps below 1 Insert the accompanied USB memory stick into the PC 2 Set up the hard2. Angle Inclinometer chart range 0 6g 0 6g Freeze chart Inclinometer chart range 30 30 z Freeze chart Data points 2000 Resetzoom Data points 2000 Resetzoom Minimum Average Maximum Stdev 0 Minimum Average Maximum Differential g 0 000920 0 000466 0 000254 0 000114 Differential 0 0527 0 0267 0 0146 VDD mV 4996 34 Temperature 26 12 C Samples second 399 Figure 23 View for differential inclinometer sensors When the Start demo button is selected in the initial Setup view the following dialog is shown if the MEMS evaluation board supports several different extension board versions for the selected inclinometer sensor The user must then select the extension board type used for the specific sensor The extension board is connected to the 16 pin extension connector on the evaluation board Figure 24 Dialog for selecting the extension board type Murata Electronics Oy Subject to changes 17 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual Inclinometers have some additional controls in the Setup view These controls can be used to enable or disable power supply voltage measurement or to change the sample count for A D conversions The A D conversion sample count specifies the number of samples averaged before the averaged value is sent to the GUI software i e this averaging is done in the embedded software of th
3. Select target memory SCA3100 Legend Select register I Bit state is 1 B ci state is 0 Register address B Error Bit state can be 0 or 1 Register width Data from sensor Data to write 0xC1 Read register Hex Write register 193 Dec 15g us 14 Ba 13 Ba 12 Bawa 11 Bawa 10 Bawa 15 W nva gus 13 Ba 12 Ba us 10 Bl ns 9 Bina o nu nu Bl ior Bil iois B ois B o B c B c B o lll no Bn Bil or E ive B os B oi B o B o B o E no O NW RO C co OQ ht ROC CO Macro command 21 readReg POUT 0 0 SPI 8 0x9d 0 0 manual SPI 8 0x9d 0 0xFF manual SEND HEX r0 8 POUT 0 1 3 10 c1s amp Figure 27 View to read and write sensor registers The Macro command field will show the last command generated for register operations The text can be copied to the Macro Commands view for modification and later the modified command can be sent manually Murata Electronics Oy Subject to changes 19 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual 5 9 Macro commands view The Macro commands view can be used to send macro commands to the evaluation board This view includes panels to write the commands and to see the response from the evaluation board the number of responses is limited The user can write and send macros written manually or load the macros from a file The user can also reload a macro that is created by the applica
4. FT245R USB FIFO Disconnect Select product family Select product family Auto detect sensor type Select praduct type Start dema Figure 3 Initial start view This view can be used to select the evaluation board and sensor types and open the connection to the board To start the demo GUI e Select the connection type USB or Virtual COM port VCP e Select the evaluation board hardware and the board ID from the list if the ID list is empty click on Rescan to rescan for evaluation boards e Open the connection to the evaluation board by clicking the Connect button e Select the sensor type by using the controls product family and product type if the sensor supports auto detection of the sensor type the Auto detect sensor type check box will be enabled e Start the demo by clicking on Start demo Murata Electronics Oy Subject to changes 7 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual The connection can be either USB or serial port VCP The user must manually connect to the evaluation board by clicking on Connect before proceeding Note that the preferred connection type is USB because this will provide the fastest and most stable communication The serial port must be used if the device is used over a Bluetooth connection Images of the evaluation board and sensor are shown on the UI after these are selected Figure 4 shows an example of the UI after selecting and connecti
5. Ri Performance ig Intel R 5 Series 3400 Series Chipset Family USB Enhanced Host Controller 3834 A4 Device Manager g Intel R 5 Series 3400 Series Chipset Family USB Enhanced Host Controller 3B3C Storage g USB Composite Device c Disk Management Lg USB Composite Device Services and Applications j g USB Root Hub M USB Root Hub jy USB Serial Converter Figure 41 Windows device manager showing the USB Serial Converter device Please note that removing the FTDI Serial Converter Driver USB driver may affect the functionality of other programs such as other demo kits provided by Murata Electronics Oy Murata Electronics Oy Subject to changes 27 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual 8 Device connector 8 1 Chip carrier Figure 42 and Table 1 below show the chip carrier connector pin order starting from the upper left corner when the USB connector is at the bottom The numbering runs counter clockwise 1 LU 18 zz j GNU I pu SRESET E4 CoB p in HEE es T 8 ne id fe d Lt E Emm rt 4 treiecertirre j viajen a j E E T z A li CSB2 E1E2 oul 11 HI ee oh Figure 42 Chip carrier pin numbering Table 1 Chip carrier connector pin descriptions Description AGND 1 Left 8 pin row in schematic J1 1 J1 8 6 DGND X O 8 DVO JH O 9 CBS2 E J J Center 3 pin
6. GUI on the Windows desktop right click the start bat file and select Send to gt Desktop create shortcut The Murata MEMS demo folder also contains an icon for the shortcut Applcon ico This can be set for the shortcut by right clicking the created shortcut on the desktop and selecting Properties gt Change Icon and then browsing to the Murata MEMS demo folder and selecting the Applcon ico file Note Do not use any special characters in the path to demo GUI Note Linux users must execute install sh script after installing the FTDI drivers and connecting the demo board to the PC This will configure the access permission for the FTDI USB devices using the UDEV module this was tested using Ubuntu 12 04 LTS Note If the demo GUI was distributed as a ZIP package the user must also change file permissions in Linux to be able to execute sh script files since the ZIP archive does not store file permissions This can be done using the command chmod x start sh Murata Electronics Oy Subject to changes 6 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual 5 Using the Murata MEMS demo 5 1 Starting the GUI To start the GUI browse to the Murata MEMS demo folder and execute start bat or start sh file depending on your operating system This will first show the splash screen and then the view shown in Figure 3 Select connection Uu SB Select demo board hardware Select demo board ID 0
7. Load macros from file Delete all macros Clear response Response 0x020e030c 0x202e XYZT 0x071b0835 0x0300021c 0x03ff02bc 0x020e020e 0x202e XYZT 0x071b0a22a 0x0300021c 0x03ff02b6 0x020e030c 0x202e XYZT 0x071b0c16e 0x0300021c 0x03ff02b6 0x020e0208 0x202e XYZT 0x071b0e13 0x0300021c 0x03ff02bc 0x020e0202 0x202e XYZT 0x071b1007 0x03000220 0x03ff03be 0x020d03f6 0x202e XYZT 0x071b11fd 0x0300021c 0x03ff03be 0x020d0212 0x202e XYZT 0x071b13f1 0x03000314 0x03ff02bc 0x020d03f0 0x202e XYZT 0x071b15e6 0x03000210 0x03ff03b2 0x020d02f4 0x202e XYZT 0x071b17da 0x0300020e 0x03ff03ac 0x020d02f8 0x202e XYZT 0x071b19cf 0x0300030a 0x03ff02a8 0x020e0202 0x202e XYZT 0x071b1bc3 0x03000204 0x03ff02ae 0x020e020e 0x202e XYZT 0x071b1db9 0x03000306 0x03ff03b4 0x02060210 0x202e XYZT 0x071b1fad 0x03000306 0x03ff02b6 0x020e030c 0x202e XYZT 0x071b21a2 0x03000306 0x03ff02ba 0x020e0306 0x202e XYZT 0x071b2396 0x03000202 0x03ff03c0 0x020e0300 0x202e XYZT 0x071b258b 0x03ff03fc OxO3ff02c2 0x020d03fc 0x202e XYZT Figure 30 Auto completion feature for macro commands Note that the commands are not stored to permanent storage so they will be cleared after closing the GUI To store the macros for later use write the commands to a file then later use the Load macros from file button to reload the macros Responses from the evaluation board can be stored to a file by checking the Store responses to file check box This shows a dialog to select the file t
8. row J3 1 J3 3 ci Right 7 pin row J2 1 J2 7 16 Murata Electronics Oy Subject to changes 28 32 www muratamems fi Doc Nr 82169500 Rev A muhata Murata MEMS Evaluation Unit User Manual 8 2 16 pin connector for external board On the MEMS evaluation board there is also an extra 16 pin connector for external boards This connector has the same pins as the chip carrier connector and additionally it also has the power supply inputs from the base board This makes it possible to power the evaluation board through the external board if necessary Table 2 External board connector pin descriptions E3 exta3 0 0 0 00000 O E3 extra 3 GND O GND E2 exra2 oo CSB2 E1 extra 1 or CSB2 PN 6 8 E2 extra 2 9 Murata Electronics Oy Subject to changes 29 32 www muratamems fi Doc Nr 82169500 Rev A muRata Murata MEMS Evaluation Unit User Manual 9 Electrical characteristics 9 1 Power supply The evaluation board uses USB as its principal power supply and does not need any other supplies when used with 2 5V and 3 3V sensors chip carriers The 5V voltage needed by Murata SCC1300 sensor is generated from 3 3V with step up regulator on SCC1300 sensor board so external power supply is not needed with Murata SCC1300 sensor board For extension boards with analog inclinometer and accelerometer sensors an additional external power supply is needed There is an External Vcc connector on the ev
9. ssssssssnsnnnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnna 24 OA NOOUIDUE Odd aci ied pesca esp eescawctenwecnenemsceenewsamessawcennstsancemseneneewsniweameneaveersnaevessesianeenes 25 6 5 Power supply voltage BITOD ooueesucecixxaiexiepiciudeixadsut Eau Ies ewan tae se savesesesatecesxcesenaceveteesesavesecenas 25 Murata Electronics Oy Subject to changes 2 32 www muratamems fi Doc Nr 82169500 Rev A muhata Murata MEMS Evaluation Unit User Manual 6 6 Cannot send macro in Macro Commands VIEW cesses een nnnm nena unen 26 6 7 Cannot check the syntax for macro command 1 eese eeeeee esee rese enne nnn nnn 26 96 oO rr E HR 26 6 9 Installing FTDI drivers eeseeeLieeeieeeeiee Leere ree rune enne enne nnn nnn nnn nana nnn nna 26 7 Uninstalling the GUI and FTDI driver 11 eese Leere eee nee nnne nnne 27 8 Device connector tnm 28 o1 CMD CIMO iiae E E E E 28 8 2 16 pin connector for external board eeclesie eren e eene nnn nn nnn mnnn 29 9 Electrical characteristics iuiieaiiedcieecue iu abs o Cer obed cie eubeez wes tu da Du eo ced obed Ee dote uu en E utu Pa br nnn 30 9 1 PPOWGR SUD DIY 30 U 31 93 TONES mm
10. status indicator seeessssssssssssssssseseeneeee nennen nennen nnn nn nnns nnne nnns 14 543 Ghahgirig trie cliam range uoo oria ipia oo oen Ion Rao Ro lenia D Rune guae ipei t venda ai to uu S Se uad 14 on xo ME PA Cate OMG PME TOC ERN 15 DO ZOOMMAG Tile Ca BT TT TM 15 5 4 6 Taking a snapshot of the chart eesssssssssssssssssessseseee nennen nennen nnn nnns 16 5 4 7 Datta rate indicator seessessesssessessseseee nennen nnne nnne nnn nnne nne nna sre sais se saa saa rs 16 5 5 Accelerometer and gyroscope view eeeeeee eere eee nennen eheu nnn nnne n nnn n nnn nns 16 9560 IACIMOMEIOR T T D 7 7 1 72 0 G 92 17 5 Sensor Status VIEW suosatabepcn iere MEER RIAL UD DUE REXE autc p URN E VO eo an UE el quaa VER iaa 18 5 86 Register SOUP VIEW E E 19 5 9 Macro COMMANGS VIGW cacciecediicisecascctenecitedeuventedwmediveisuecstedsnecivstanventeinnedeccsseeenteevccadctuunestsinies 20 GEBUNEL UU SuLSs 21 REB lre Mireu uir 22 5 12 Advanced data LOCI aaa sacar sete M 23 6 PEOUDICSNOOUNG esiaren EEEE EEEE 24 6 1 GUI opt 24 6 2 No evaluation boards found cccceceeeeceeeeeeeseeeneeeeneeeesesenseoeseeenseeeaseoeseseaseoenesonssoeaeeonsesoas 24 6 3 Cannot open connection to evaluation board s
11. 0x020e0208 XYZT OxObfaed1b 0x020e0208 XYZT OxObfaefOf 0x020e0204 XYZT Figure 34 Advanced data logging Note that the Store responses to file feature does not split the files i e all the data is stored to the same file until the check box is deselected Murata Electronics Oy Subject to changes 23 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual 6 Troubleshooting 6 1 GUI won t start If the following error message is shown while starting the GUI either Java is not installed refer to the Installing Java section or Java is not added to the PATH environment variable java is not recognized as an internal or external command operable program or batch file Java not found Make sure Java is installed and added to your PATH environment v ariable Press any key to continue Figure 35 Error message when Java is not installed or not in the PATH environment variable If Java is not in the PATH refer to Java s website http www java com en download help path xml for instructions on how to add Java to the PATH After setting the PATH try to restart the GUI If the USB library was not found the GUI will show the following error message and exit Check the log file under the logs folder and make sure the Java library path does not contain any special characters copy the GUI to another folder if it does If this did not help please contact technical support for further i
12. I website http www ftdichip com Drivers D2XX htm and start the installation See Installation Guides on the FTDI website for detailed installation instructions Linux users should read nstalling the D2XX shared library and static library section from the Drivers F TDl Linux ReadMe txt file for instructions on how to install FTDI D2XX drivers to the Linux operating system Note Always use the latest FTDI driver if the driver version is not specified in this document Murata Electronics Oy Subject to changes 26 32 www muratamems fi Doc Nr 82169500 Rev A muhata Murata MEMS Evaluation Unit User Manual 7 Uninstalling the GUI and FTDI driver The GUI can be uninstalled by deleting the Murata MEMS demo folder i e uninstalling the program is not necessary To uninstall the FTDI driver open the Windows Device Manager and search for the USB Serial Converter device under the Universal Serial Bus controllers devices list Then right click the device and select Uninstall to uninstall the driver The figure below shows where the USB device for the FTDI chip is located in the Device Manager Computer Management File Action View Help e gt 2 3 EI B E3 i eN e mputer Management Local l System devices System Tools 4 Prism Serial Bus controllers Task Scheduler y Generic USB Hub id Event Viewer Generic USB Hub More Actions gt z Shared Folders M Generic USB Hub Local Users and Groups Generic USB Hub
13. Murata MEMS Evaluation Unit User Manual Murata MEMS Evaluation Unit User Manual Murata Electronics Oy Subject to changes 1 32 www muratamems fi Doc Nr 82175700 Rev A muhata Murata MEMS Evaluation Unit User Manual TABLE OF CONTENTS T MT OGUG HON rroen E E E E E PETRA N S 4 2 Quick start for using the Murata MEMS Evaluation Unit 4 3 Hardware overvieW sssssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn nnmnnn nnmnnn mnnn 5 4 LE a A A A A A A sou A AN ecu dau A A AA A A A AN A A A A A ue aue 6 5 Using the Murata MEMS demo sassnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnnm 7 S SANN Me GUE er EEE EEO EE OES EEEE EEEN EEE 7 52 VIEWS ei EEEE EE E A EAE a 8 S9 OCD OW P 9 5 3 1 Operation mode ee cee 9 9 942 Tamper E senn AE E S E E S DER did 10 DoS ZOOS E R E EE EE E 10 DA DA TT E ee ee eee ee ere 10 5 3 5 Saving output data to file cece ceccceeeeeceeeeeeeeeeseeceseeeeeseueesseeeeseeeessaeeeseeeesseeesseeeeseaees 10 530 Standard CCV ice ERR 12 5 3 7 Reset demo system Lari etium In ERIS o E EIE TU Sx MOI hU Lum o Maa HI URN S eUEUx RUM M P MM DN PULSI Un 12 5 3 8 Changing moving average filter sample count eeeeeeseseeseeeeeee 12 5 4 Acceleromeler VIEW TETTE cece Ea E EEEE EEEE 13 54 1 Qu tp tdata 7 10 ECCE 13 5 4 2 Sensor
14. Nr 82169500 Rev A PT Pert ir Murata MEMS Evaluation Unit User Manual When one of the data formats is selected the GUI will then query the path and file name for the new data file If the file already exists a confirmation to overwrite the file is shown Overwrite data to existing file Figure 9 Confirmation to overwrite existing file After selecting the file data streaming to the file begins and an alert dialog view is shown Other views except the output data view are blocked while streaming data to file Stopping the data streaming will enable the other views again This is done to prevent accidental changing of the measurement parameters while streaming the data to the file Figure 10 Dialog shown while data is saved to file Clicking on the End data streaming button will end the data streaming The GUI will then show how many samples were saved and how long the sampling took Figure 11 Information shown after saving data The format of the output data file depends on the selected sensor and data format raw vs decimal The data file starts with a file header containing information on the time and date the GUI version and various GUI parameter values Comment lines start with the character The statistics shown in the dialog when streaming ended are also appended to the end of the file Each data value is separated with whitespace and each line ends with a system specific new line character s Note B
15. aluation board or the external power can be provided through the 16 pin external board connector The external power supply voltage range is from 7V to 15V J Sin LARA 1 E CELP if elo c m JN nr n gt uw im T2 E NAA L 11117 na T1 a a U O Figure 43 Evaluation board with external power cable inserted The evaluation board s current consumption is approximately 60 mA in active mode and less than 20 mA in sleep mode For use with 3 3V sensors or Murata SCC1300 combo sensors or with extension boards no jumpers are needed on board For use with 2 5V or 5V sensors on chip carrier sockects without separate power regulator it is necessary to add jumpers to the 3 pin headers on the board see Table 3 below for options Table 3 Power supply jumper options for chip carrier With no jumpers Jumper here gives 2 5V Output is 3 3V ss Jumper here gives 5V Murata Electronics Oy Subject to changes 30 32 www muratamems fi Doc Nr 82169500 Rev A Murata MEMS Evaluation Unit User Manual DVDD jumper T Sa art in Progr gmming usse us AECEXIXIYIIII Figure 44 Jumpers set for powering DUT with 3 3V AVDD and DVDD 9 2 USB Basic operation is enabled within the normal USB supply range Note that with just the USB supply the 5V supply voltage option cannot be used instead an external 5V power supply is needed The reason for this is that the USB voltage level
16. an then set the minimum and maximum values for the range If the values are not valid an error message is shown The Ok button accepts the new values and the Cancel button discards the changes and restores the previous range There is also a check box to use the current minimum and maximum values from the chart the values are taken from the chart when the dialog is shown Note Dot character must be used as a decimal separator Murata Electronics Oy Subject to changes 14 32 www muratamems fi Doc Nr 82169500 Rev A muhata Murata MEMS Evaluation Unit User Manual 5 4 4 Chart data points This control specifies how many samples will be visible on the chart Note that this control will have an effect on the performance of the application when a large amount of data is visible on the charts Data points 3000 w Average 0 0242 0 0220 1 0013 Figure 18 Dialog to set number of data points for the chart 5 4 5 Zooming the chart The chart cannot be updated while zooming so the user must first freeze the chart then the left mouse button can be used to zoom the chart After zooming the GUI shows data markers according to the mouse position on the chart and their numeric values in a tool tip message The figures below show the chart before and after zooming Use the Reset zoom button to zoom out Use the Update chart button to zoom out and start updating data points for the chart Note Do not zoom outside the chart panel or
17. e MEMS evaluation board Because of this the selected value has an effect on the data rate refer to Moving average sample count in section 5 3 8 If Read power supply voltage is enabled the GUI will receive a supply voltage value for every measurement data sample This value is used to scale the output values for ratiometric sensors Inclinometer Moving average sample count 1 w AJ D conversion sample count 1 Read power supply voltage Figure 25 Inclinometer controls in Setup view 5 7 Sensor status view The Sensor status view can be used to view latched status errors When the Murata MEMS demo GUI identifies a status error either by using SPl frame bits or by reading a status register it adds an event to the status log The user must then use the Read status registers button to read all status register values to clear latched status errors Tooltips can show more detailed information for the sensor status register bits as shown in Figure 26 File Help Setup Accelerometer Sensor status Register setup Macro commands About Status registers Legend 0x02 Status register STATUS Hex 0x00 Dec 0 lll Bit state is 1 15 14 13 12 11 10 9 8 W Eit state is 0 7 654 3210 BERR ERE REE eee ll Error Bit state can be 0 or 1 0x16 Interrupt status register INT_STATUS Hex 0x40 Dec 64 Status log 15 14131211109 8 6 5 4 3 Time stamp 20 307251 Status failure 7 2 1 0 BEHEBEHBHHENHHBHNHEEHBHBHBHENENEN Sig
18. e operation mode for the selected sensor Operation mode Read temperature Measurement mode Power down mode Zero offsets sleep mode Figure 6 Control to change the operation mode Murata Electronics Oy Subject to changes 9 32 www muratamems fi Doc Nr 82169500 Rev A muhata Murata MEMS Evaluation Unit User Manual 5 3 2 Temperature The Read temperature check box is used to enable or disable reading of the sensor temperature values This will modify and reload the measurement macro that reads the sensor output values Note that some sensors might read the temperature even if this check box is deselected in this case the measurement macro contains the commands to read the temperature but the returned values are not processed SCA10x T sensors that are used with an extension board will receive temperature from an external temperature sensor soldered to the board 5 3 3 Zero offsets The Zero offsets check box can be used to measure offset values and then to decrease those automatically from the output data Note that some operations will clear these values and then read new values for the offset For example the offset might change after changing the operation mode so it must be updated for the new mode This parameter value is not stored to the initialization file When the zero offsets feature is enabled the data buffer for the moving average data will be cleared The next received output data samples are then used as off
19. e020e 0x2030 XYZT OxO5fbc58f 0x03000326e 0x03ff03be 0x020e0208 0x2030 XYZT Figure 28 View for sending macro commands The macro command parser will check the syntax for macro commands and removes comments before sending the command C style comments can be used If the parser is disabled everything written to the Macro command field will be sent to the Evaluation Board If syntax errors were found during parsing an error dialog will be shown with a description of the error For example command 80 will generate the error shown in Figure 29 Figure 29 Macro language compiler error dialog Auto completion will give options to complete the commands while typing After a command is sent successfully the command is stored to the GUI s memory The auto completion feature uses these previously saved commands when determining the auto completion values suggested for the user Murata Electronics Oy Subject to changes 20 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual To accept the completion the user can press the Enter key If auto completion is not active Enter will only add a new line File Help Setup Accelerometer Sensor status Register setup Macro commands Iv Check macro command syntax E Store responses to file W Auto complete macro commands Macro command test SEN DSTR HelloWorld Send command Restart collecting data
20. ecause the amount of output data may be very large data is split into several files each file containing 3 million lines of data These files will have the original file name appended with an underscore character and an index number Murata Electronics Oy Subject to changes 11 32 www muratamems fi Doc Nr 82169500 Rev A PT P2 ir Murata MEMS Evaluation Unit User Manual 5 3 06 Standard deviation Shown below are the controls for standard deviation calculation STDEV The user can enable or disable the STDEV calculation and also define the number of samples used for the STDEV SIDEV is calculated from averaged sample values refer to Moving average sample count in section 5 3 8 Calculate standard deviation v STDEV sample count 5000 w Figure 12 Control to change STDEV sample count 5 3 Reset demo system The Reset demo system button can be used for restarting the data collection from the sensor This might be needed for example if something goes wrong after sending measurement macro commands manually and the sensor does not operate as it was supposed to After clicking this button the sensor configuration registers are reinitialized and the status registers will be flushed the operation mode is set and the measurement macro to read output data is reloaded system Reset demo system Reset system Figure 13 Button to restart data collection 5 3 8 Changing moving average filter sample count It is possib
21. ints 2000 v Resetzoom Minimum Average Maximum Stdev c Minimum Average Maximum Stdev c X axis d 0 01689 0 02900 0 03667 0 00283 Angular rate X s 0 23200 0 13600 0 01600 0 03982 Y axis g 0 02344 0 01811 0 00878 0 00228 Temperature 33 92 C Z axis g 0 99489 1 00000 1 01344 0 00286 Sensor status e Resultant Temperature 22 42 C Samples second 997 Figure 22 View for combination 16 32 www muratamems fi Doc Nr 82169500 Rev A Murata Electronics Oy Subject to changes mubtata Murata MEMS Evaluation Unit User Manual This view has similar controls for the charts as described in the previous section for the Accelerometer view The view can also show the temperature from each ASIC If the combination sensor has only one ASIC then the same temperature is shown in both indicators Note The Freeze Update chart buttons will have an effect on both charts in this view so the charts will freeze simultaneously 5 6 Inclinometer view The nclinometer view shows output data for 1 and 2 axis inclinometers If the sensor uses the differential measurement mode then the numerical indicators Differential output g are shown If the sensor has separate X and Y axes then the numerical indicators OUT x are shown to indicate acceleration and the UI will show the calculated inclination angle for each axis separately Figure 23 shows the UI for the SCA103T inclinometer Macro commands About
22. le to use moving average filtering for the sensor output data The GUI takes a selected amount of previous samples and calculates their average The averaged values are then added to the charts and optionally saved to file when using the decimal data format Note that using a moving average has no effect on the output data rate The user can change the number of samples for the moving average filter The valid range is from 1 no averaging to 2000 The value is changed either by clicking on the small down arrow and selecting a new value from the predefined list or by typing the value directly in the combo box The GUI checks the validity of the typed value and gives an error message if necessary Gyroscopes inclinometers and combination sensors will have a similar control for the moving average sample count Accelerometer Moving average sample count Calculate resultant for acceleration Figure 14 Control to change sample count for the moving average filter Murata Electronics Oy Subject to changes 12 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual 5 4 Accelerometer view 5 4 1 Output data values Shown below is the output data view for accelerometer sensors The GUI can show output data values on charts as well as on numeric indicators The output data values possibly averaged by the moving average filter see 5 3 8 are added to chart traces each trace is a line on the chart The n
23. mubtata Murata MEMS Evaluation Unit User Manual 5 12 Advanced data logging The Save output data to file feature will only work if the GUI application has created the specific macro that is used to read the output values If the user wants to create custom macros to read output and store the output values to a file the Macro commands view can be used First send a command to read specific sensor registers and then select the Store responses to file check box which will store everything received from the evaluation board to a file Figure 34 shows an example for reading the TIMESTAMP and z axis output of an SCA3100 D04 sensor Setup Accelerometer Sensor status Register setup Macro commands About iv Check macro command syntax W Store responses to file W Auto complete macro commands Macro command 21 0uts IMESTAMP SPI 8 0x25 8 0xXFFFF cs1 SP1 8 0x20 8 0xXFFFF cs1 SEND HEX r0 32 SENDSTR Send command XYZT WAIT NTERVAL 500 2 10 1 Restart collecting data Load macros from file Delete all macros Clear response Response 0x020d03f6 XYZT OxObfad1b7 0x020d03fa XYZT OxObfad3ab 0x020d03fc XYZT OxObfad5a1 0x020d02fe XYZT OxObfad795 0x020e0202 XYZT OxObfad98b 0x020d03fc XYZT OxObfadb7f 0x020d03f6 XYZT OxObfadd74 0x020d02f4 XYZT OxObfadf69 0x020d03ee XYZT OxObfae15e 0x020d03f0 XYZT OxObfae352 0x020d02f8 XYZT OxObfae547 0x020d02fe XYZT OxObfae73c 0x020e0306 XYZT OxObfae931 0x020e030a XYZT OxObfaeb25
24. n Unit User Manual 5 3 Setup view The purpose of the Setup view is to provide controls for setting up the measurements and data calculations Controls in this view are specific for the sensor type i e an accelerometer will have different controls compared to a combination sensor with accelerometer and gyroscope Also some controls might be disabled if the sensor does not support these features All parameter values are stored to an initialization file and they are reloaded automatically during the next start up except the controls Zero offsets and Save output data to file General Operation mode Measurement mode Read temperature iV CES Zero offsets Data rate 1 s 2000 Save output data to file select data format Off Use CTRL S to save data Calculate standard deviation y STDEV sample count 5000 System Reset demo system Reset system Accelerometer Moving average sample count Calculate resultant for acceleration Figure 5 Setup view 5 3 1 Operation mode The Operation mode control lists all possible operation modes for the selected sensor Figure 6 shows an example of the SCA3100 sensor Additional operation modes typically include power saving modes or special measurement modes Changing the mode will first write the sensor s mode register then flush the status registers and finally reload the measurement setup macro Note that this control is not visible if there is only on
25. nal saturated SAT Read status registers Clear log Figure 26 View to check sensor status registers Murata Electronics Oy Subject to changes 18 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual If the bit color in the Status registers panel is green the bit value is 1 if black the value is 0 If the bit color is red it means the bit indicates a status error but the value can be either 0 or 1 depending on the specific sensor type The Clear log button does not read anything from the sensor it will only clear the Status log indicator 5 8 Register setup view The Register setup view contains controls to read and write sensor specific registers There are separate indicators for data read from the sensor and data to write to the sensor The user must select the memory and register from the drop down menus The view will read the register automatically when the register is selected from the menu The Head register and Write register buttons can also be used to read or write the register After writing the register the Murata MEMS demo GUI will automatically read the register back to verify that the data was correctly written to the register If the write was not successful the Data from sensor indicator will show a different value compared to the Data to write indicator File Help Setup Accelerometer Sensor status Register setup Macro commands About
26. ng of the macro 6 7 Cannot check the syntax for macro command When using the SCA3000 USB Interface card demo board the Check macro command syntax is always disabled 6 8 Installing Java The demo GUI uses Java programming language so the Java Runtime Engine JRE must be installed Usually this is already the case but if the JRE is not installed download the installation package from Java s website http www java com en download index sp execute the installer and follow the instructions Java installation can be tested by typing the command java version to terminal In the Windows Command Prompt this should give an output similar to Figure 40 if Java is working correctly C Users TAKK gt java version java version 1 7 0_21 Java TM SE Runtime Environment build 1 7 0 21 b11 Java HotSpot TM G4 Bit Server UM build 23 21 bO1 mixed mode Figure 40 Output for java exe using version parameter 6 9 Installing FTDI drivers Note If it is necessary to update the FTDI driver make sure to uninstall the old driver before updating to the new one see Uninstalling the GUI and FTDI driver The FTDI driver is needed for communication with the evaluation board via the USB FTDI drivers can be found from Windows Update so Windows might install the driver automatically when the evaluation board is connected to the USB port If Windows could not find the driver manually browse to Drivers FTDI folder or download the latest driver from the FTD
27. ng to an evaluation board and after selecting an SCA3100 sensor Select connection USB Use Bluetooth connection Select demo board hardware MEMS Evaluation board Select demo board ID 0 FT245R USB FIFO Rescan Select product family Auto detect sensor type SOCIUM NIS SCA3100 D04 SCA3100 D07 Demo saftware for Murata Automotive Digital Accelerometer Platform 3 axis sensors Start demo Figure 4 Initial setup view after selecting an SCA3100 sensor If more than one USB device is connected all devices will be listed in the Select demo board ID field If the user does not know the ID of the board please disconnect all other USB devices and click on Rescan to update the list the list includes all devices using an FTDI chip 5 2 Views When the Start demo button is clicked the application loads a sensor specific user interface Each sensor will have a Setup view that contains controls for measurements for example to change operating modes or the sample rate and to save output data to a file in the selected format Each sensor will also have an About view that shows application and hardware specific information Other views are sensor specific for example a view to show output data values in sensor specific format Each of the following subsections explains the features of these views Murata Electronics Oy Subject to changes 8 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluatio
28. nsor status Register setup Macro commands About lanorator th Electront s Demo board Sensor Operating System Java version FTDI version Processors cores Maximum memory KB Available memory KB Allocated memory KB Uptime Connection errors Murata MEMS demo 1 01 b18 2013 Murata Electronics Oy MEMS Evaluation Board 1 2 4 0 29851a1 CA3100 D04 serial number 1060801983ME4 Rev 0x22 Windows 7 amd64 Oracle Corporation 64 bit JVM 1 7 0_25 2 08 28 8 253440 38608 74104 00 02 39 0 Figure 31 View to show general information 5 11 Application menus The File menu contains menu items to change the selected sensor type and to close the application If the Change sensor type menu item is selected the view shown in Figure 3 will be shown for the user Help Ed Changesensortype ls luj Exit Figure 32 File menu The Help menu contains items to show online sensor information the user manual for the GUI software and the About view When the Online sensor information menu item is selected it will open the web browser to show Murata s website information on the selected sensor Selecting the Murata MEMS demo manual opens the user manual in PDF format File Seti Online sensor information i 2 Murata MEMS demo manual E About Figure 33 Help menu Murata Electronics Oy www muratamems fi Subject to changes 22 32 Doc Nr 82169500 Rev A
29. nstructions Failed to load the native library for the USB See lag file for mare information System will exit Figure 36 Error message when USB library is not found 6 2 No evaluation boards found If the GUI cannot find evaluation boards during start up the following error message will be shown Make sure the USB cable is properly connected and that the FTDI drivers are correctly installed see Installing FTDI drivers section Error Figure 37 Error message when no evaluation boards are found 6 3 Cannot open connection to evaluation board Make sure you have selected the correct evaluation board Figure 38 shows an example where the selected board hardware is MEMS Evaluation board but the board ID indicates SCA3000 USB Interface Card demo board USB Serial If you are sure you have selected the correct hardware try to reset the board by pressing the reset button see Figure 1 Murata Electronics Oy Subject to changes 24 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual Select demo board ID 0 FT245R USB FIFO 1 USB gt Serial Error Figure 38 Error message when connecting to a demo board failed 6 4 No output data If an error message is shown follow the given instructions If the output data values are not updated and an error message is not shown please check the following e Make sure chart updating is enabled i e check Freeze chart Update char
30. o store the responses Note that all data received from the evaluation board is stored to the file UNTIL the Store responses to file check box is deselected Refer to the Advanced data logging section for more information on how to benefit from this feature The Restart collecting data button will send a macro to read output values from the selected sensor Use this button after sending commands manually to start updating the output values and charts again This button can also be used to display the macro used with the selected sensor i e the macro will be shown in the Macro command field This will not do anything else than reload the macro for sensor output data reading 5 10 About view The About view can be used to check the software version number operating system information and hardware details Sensor information shows the selected sensor type sensor serial number and revision if possible The Uptime indicator calculates the time since the Murata MEMS demo GUI was started The Connection errors indicator shows the number of connection errors If the Murata MEMS demo GUI Murata Electronics Oy Subject to changes 21 32 www muratamems fi Doc Nr 82169500 Rev A Murata MEMS Evaluation Unit User Manual does not receive output data within a specific time it will try to reconnect and initialize measurements to receive data again This operation will increase the connection error counter File Help Setup Accelerometer Se
31. seldom is more than 5V and usually less than 5V for example 4 5V 9 3 T lines All IO lines are level shifted SPI and GPIO are level shifted with an SN74LVC1T45 and the I2C lines use MOSFET based level shifters 9 3 1 Analog lO The evaluation board does not have analog IO Murata Electronics Oy Subject to changes 31 32 www muratamems fi Doc Nr 82169500 Rev A muhata Murata MEMS Evaluation Unit User Manual 9 3 2 Digital lO The digital IO uses SN74LVC1T45 Table 4 below shows a short reference of its specification For more details please refer to the SN74LVC1T45 product specification For I2C the pull up resistor is 3 3 kOhm and level shift is done to support 2 5V and 3 3V supply voltages The full range of I2C is from 1 8V to 3 6V Table 4 SN7ALVC1TA5 electrical characteristics DVIO MAX UNIT 1 65 V to 1 95 V DVIO x 0 65 High level input 2 3 V to 2 7 V voltage 3 Vto3 6V 4 5V to 5 5V DVIO x 0 7 V High level output 1 2 to 4 5V loH 100uA DVIO x 0 6 voltage 3V loH 24mA OH VoL Low level output 1 2 to 4 5V IOH 100uA voltage 3V loH 24mA 0 55 1 65 V to 1 95 V DVIO x 0 35 Low level input 2 3 V to 2 7 V o ajy voltage 3 V to 3 6 V D 4 5V to 5 5V DVIO x 0 3 Murata Electronics Oy Subject to changes 32 32 www muratamems fi Doc Nr 82169500 Rev A
32. set values for any subsequent data samples 5 3 4 Data rate The Data rate control is used to change the rate at which the output data is read This feature uses a specific measurement macro to produce a delay between macro execution cycles and the exact execution rate might vary Note that when the previous hardware version Demo Kit is used this control is changed to Measurement loop delay us control because the older interface board macro language does not support the macro delay command needed to implement the data rate feature Data rate 1 s Save output data to file select data format Calculate standard deviation STDEV sample count System Reset demo system Figure 7 Control to change data rate 5 3 5 Saving output data to file To begin storing measurement data to a file first select the data format using the Save output data to file control The user can choose to store raw output data values in HEX format i e using the same format in which the values were received from the sensor or to store averaged data in decimal format Note that status information is stored within output values when the Raw mode is used The user can also press CTRL S in any view to begin saving data in decimal format Save output data to file select data format Calculate standard deviation STDEV sample count Figure 8 Control to save output data to file Murata Electronics Oy Subject to changes 10 32 www muratamems fi Doc
33. t button e lf chart updating is enabled use the Reset system button in the Setup view to restart collecting data e Make sure the sensor operation mode is correctly set i e none of the low power modes is set e lf the connection keeps connecting disconnecting decrease the Sample rate value to e g 100 samples per second or increase the Loop delay if the SCA3000 USB Interface Card is used If none of the above helps try to reset the board by pressing the reset button If the values are still not updated within a couple of seconds restart the GUI 6 5 Power supply voltage error When using an extension board the GUI checks if the power supply voltage is within the correct range If the voltage drops below 3 3V the following error message is shown Flease power an the power supply for extension board and press Yes to continue If power supply is powered on select Mo to change the extension board version or close the application using the Cancel button Figure 39 Error message after power supply voltage is below 3 3V Murata Electronics Oy Subject to changes 25 32 www muratamems fi Doc Nr 82169500 Rev A muhata Murata MEMS Evaluation Unit User Manual 6 6 Cannot send macro in Macro Commands view If the Check macro command syntax check box is enabled and there is an error message check the message and the macro command to see if there is an error in the macro If there were no errors disable syntax check to force sendi
34. t to changes 13 32 www muratamems fi Doc Nr 82169500 Rev A muhata Murata MEMS Evaluation Unit User Manual 5 4 2 Sensor status indicator The Sensor status indicator shows the current status for the sensor If the status color is green there are no status errors Red means there are status errors and they should be read by using the Sensor status view Typically the status errors are latched until the status registers are cleared read If the status color is black the sensor status is not read from the sensor Sensor status information ok fail is also appended to the decimal data file while saving the data to a file 5 4 3 Changing the chart range The Chart range control contains predefined sensor specific ranges as well as Automatic and Manual modes The Automatic mode scales the chart range according to the minimum and maximum values shown on the chart Use the Manual mode to set an arbitrary range between predefined minimum and maximum values Chart range m ig 2ig 7 Automatic 2419 219 Data points 8 1 g 6 1g Average Manual Figure 16 Chart range control If the Manual mode is selected the following dialog is shown showing previously set values for manual mode if they exist zu Manual chart range Specify the minimum and maximum values for the new range Use minimum and maximum data values from the chart Minimum 1 0 Maximum 1 0 Figure 17 Dialog to set chart range manually The user c
35. the zoom will be reset automatically X 5105351 Y 0 4622 Figure 20 Chart after zooming Murata Electronics Oy Subject to changes 15 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual 5 4 6 Taking a snapshot of the chart The user can save the chart view as an image to a file by right clicking the chart and selecting Save image You can then select the file name and path for the image ON Save eps Figure 21 Menu to take a snapshot 5 4 7 Data rate indicator The output data view also contains an indicator for the data rate Samples second The Data rate control in the Setup view can be used to change the rate If the difference between the Data rate control value and the resulting data rate value is greater than 5 the color for the data rate indicator is changed to red 5 5 Accelerometer and gyroscope view The Accelerometer and gyroscope view shows the output data values for combination sensors The accelerometer and gyroscope will have their own charts and numeric values Below is an image for a sensor with a 3 axis accelerometer and an X axis gyroscope Each sensor axis is determined according to the selected sensor type Sensor status Register setup Macro commands About Angular rate s Chartrange 219 219 v Freeze chart Chartrange 310 s 310 s wv Freeze chart Data points 2000 v Resetzoom Data po
36. tion to collect sensor output data using the Hestart collecting data button The view also contains controls to enable disable the macro command parser and the macro command auto completion feature and there is a check box to enable saving all responses to a file The Delete all macros button can be used to clear all macros from the MEMS evaluation board memory V Auto complete macro commands Macro command 80 Send command Restart collecting data Load macros from file Delete all macros Clear response Response 0x05fba645 0x03000326e 0x03ff03cc Ox020E0202 0x202 XYZT 0x05fba839 0x03000330 0x03ff02c8 0x020e0300 0x202e XYZT 0x05fbaa2e 0x0300033c 0x03ff03ca 0x020d02f8 0x202e XYZT 0x05fbac22 0x03000348 0x03ff03cc Ox020d02f4 0x202e XYZT OxO5fbae1 7 0x0300024a 0x03ff02d0 0x020d0212 0x2030 XYZT 0x05fbb00b 0x03000344 0x03ff02d6 0x020d03ee 0x2030 XYZT 0x05fbb200 0x0300033c 0x03ff03d4 0x020d02ec 0x2030 XYZT 0x05fbb3f4 0x03000330 0x03ff02d0 0x020d03ee 0x2030 XYZT O0x05fbb5e9 0x0300022a 0x03ff03cc 0x020d0212 0x2030 XYZT 0x05fbb7dd 0x03000328 0x03ff03d2 0x020d03fa 0x2030 XYZT 0x05fbb9d3 0x03000328 0x03ff03d8 0x0206e0204 0x2030 XYZT OxO5fbbbc7 0x0300032e 0x03ff02da 0x020e030c 0x2030 XYZT OxO5fbbdbc 0x0300022c 0x03ff03d8 0x02060312 0x2030 XYZT OxO5fbbfbO 0x03000328 0x03ff03d2 0x0206e0210 0x2030 XYZT Ox05fbc 1a5 0x0300032e 0x03ff02c8 0x020E0210 0x2030 XYZT 0x05fbc399 0x03000330 0x03ff02c2 0x020
37. umerical values Average Minimum and Maximum are calculated for the data points currently shown on the chart In addition to the output values for each axis the numeric values include standard deviation if enabled in Setup view and possibly a resultant value The resultant is calculated according to the following formula Resultant 4 x y z The output data view also shows indicators for the data rate sensor temperature and sensor status The amount of data points on the chart can be changed using the Data points control and the range of the chart using the Chart range control Note that the amount of data points affects only the number of output data values on the chart and not the averaged output value m i Y g Eile Help Chart range 219 219 z Freeze chart Data points 2000 v Reset zoom Minimum Average Maximum Stdev 0 X axis d 0 0029 0 0111 0 0213 0 0043 Samples second Y axis g 0 0218 0 0171 0 0073 0 0032 Temperature Z axis a 0 9822 0 9949 1 0107 0 0046 Sensor status Resultant Figure 15 Output data view for accelerometer sensors Note The sensor axis count and axis directions are determined by the selected sensor type and output data values are shown only for these axes If the sensor type was auto detected and the wrong axis information is shown check the About view to see if the sensor type was correctly detected Murata Electronics Oy Subjec
38. ware Turn on the external power supply if necessary depends on product to be evaluated Connect USB cable to USB connector on evaluation board and to PC s USB port 3 After the PC has found the device wait until device driver installation is complete 4 Install the GUI software Copy the Murata MEMS demo folder from the USB memory stick to a folder on your hard drive for example C Murata MEMS demo 5 Start the GUI software e Windows operating system Double click file start bat to start the GUI e Linux operating system Double click file install sh to configure USB device permissions this step is required only once after the installation Double click file start sh to start the GUI When using the Murata MEMS demo GUI software e The evaluation board should be connected to the PC before the GUI software is started e Exit the GUI software before unplugging the evaluation board from the PC e After the GUI software has closed the evaluation board can be unplugged from the PC The demo software can be operated without network access but network access is required if Online sensor information menu item is selected from the Help menu Murata Electronics Oy Subject to changes 4 32 www muratamems fi Doc Nr 82169500 Rev A mubtata Murata MEMS Evaluation Unit User Manual 3 Hardware overview The MEMS Evaluation Board is shown in Figure 1 The sensor is connected to the evaluation board with a chip carrier or by using an e
39. xternal interface board If an external board is used see Figure 2 it is connected to a 16 pin extension connector For extension boards with analog inclinometer and accelerometer sensors an additional external power supply from 7 to 15 VDC is needed The external power can be connected to the screw terminals on the MEMS evaluation board or on the extension board The USB cable is connected to the USB connector For more detailed hardware information refer to the Device connector and Electrical characteristics sections Screw terminals Sensor soldered for external to chip carrier power supply 16 pin cable connector for extension board TT rs A Reset button 2 tov d USB connector Figure 1 MEMS Evaluation Board 16 pin cable connector Temperature sensor Sensor soldered ETT on PCB terminals for external power Figure 2 Extension board SCA10xT PCB Murata Electronics Oy Subject to changes 5 32 www muratamems fi Doc Nr 82169500 Rev A muhata Murata MEMS Evaluation Unit User Manual 4 Installation The demo GUI uses Java programming language so the Java Runtime Engine JRE must be installed To install the GUI just copy the Murata MEMS demo folder from the removable drive to a suitable directory in your hard drive for example C Murata MEMS demo If the demo GUI was distributed as a ZIP package create a folder and extract all files and folders to this new folder To create a shortcut for the
Download Pdf Manuals
Related Search