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1. 11 5 2 MAL EXECUTION yates un sicuanita RET 13 5 3 DSP CONNECTION 14 5 4 DESCRIPTION AND USAGE OF COMVIEW MENUS 16 EE ELE 17 Menu OP Crate 23 uou e RR eU UE eter pe n LE ere Beads 17 d Sv te cael ane uay ana uma h sama aded eina 17 Variable Capture Window pal esa e epe ee teen 18 Window SenDecimalion rise M Hie ex Men ds 19 Window View DSP 2 Variables amp 20 6 LABVIEW WEB PUBLISHING TOOL AND REMOTE PANELS TECHNOLOGY Y 21 6 1 GUIDELINES FOR PREPARING REMOTE EXPERIMENTS ccccccssscesssecsscceescecesscesseecssccesseecssscesseeenssensaes 22 7 LITERATURE 24 FIGURES ii Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 FIGURES DSP 2 Rapid Control Prototyping System 1 Installation programme for Com toolkit seen nee 3 ComVIEW uninstallation programme esee enne
2. Faculty of Electrical Engineering and Computer Science Smetanova 17 Maribor 280292 Slovenia rap re INSTITUTE OF ROBOTICS ComVIEW LabVIEW toolkit for DSP 2 control systems User s Manual Author Darko HERCOG Version 1 5 LabVIEW 8 5 or higher Date January 11 2010 E mail darko hercog Quni mb si January 2010 ComVIEW TABLE CONTENT i TABLE OF CONTENT LN PRODUCTION ha a S Q Q Pa S ww asa s ERU 1 2 INSTALLATION AND COMPILING PROCESS 3 2 1 COMVIEW INSTALLATION PROCEDURE 0 ccccecessceessecessceeseecessceessecessceessecesscecssecesseeeseecessesesaecnsseneneess 3 2 2 COMVIEW UNINSTALLATION PROCEDURE 4 2 3 WAS COMPILATION ERE 4 3 VI CREATION PROCESS 6 3 1 VI CREATION USING MATLAB SIMULINK cccccccccccsccsecesesscsesscssccsessecesssscssesscnsssscssessuesscasesscnssesevaees 6 3 2 VI CREATION WITHOUT USING MATLAB SIMULINK n 7 4 DESCRIPTION OF VI TEMPLATE 8 4 1 FRONT PANEIS unn eara caute e EA nio n 8 4 2 DIAGRAM rate tei tese nee eiae eU 8 5 MI EXECUTION 11 5 1 INITIAL SETTINGS
3. 4 ComVIEW compiling wIndOW 3 2 tiene tees cepto ri ee Ee RR ERE qu anc eed 2 Procedure for replacing front panel object eccesececeesseesceeseesecesecesecesecsecsaecsaecssecaecsaecaeeeneeeneeeeeeeseneeenaees 7 X Eblock diagram rn nat beret e eden en 10 Initial settings dicet te C re HEC CROP e ED CRT eo Socal D ERI re P Uo e pac e Pen ER 11 Downloading executable code to the DSP 2 control system n eene nennen 13 DSP 2 Start Up Information s Window U nennen nennen ne 14 DSP Connection Manager Window eeseeeseeeeeeeeeeeneeenneene nennen eene trennen innen enne 16 ComVIEW menu kuu SSS A Sus nre rne ugut S uum aQ 16 dees 17 Figure 3 Ment Matec ee oe RR RI Ir e e PRI aUe ET PM ET 17 Figure t4 Menu D t iuuenem re en OO h pasas 17 Figure 15 Variable Capture WIRQoW a a E as 19 Figure 16 Figure 17 Figure 18 Figure 19 Set Decimation Window ap p ADR anil PO PER CAU re a ee hoped 19 Window DSP 2 Variables amp Parameters essent nee 20 An example of virtual instrument which can be remotely controlled using classical web browser 22 login Wid OW 23
4. CHAPTER 1 INTRODUCTION 1 1 Introduction ComVIEW a LabVIEW add on toolkit extends DSP 2 rapid control prototyping systems Figure 1 with the possibility for friendly user interfaces creation online analysis and by using Remote Panels technology also remote control DSP Terminal LabVIEW MATLAB Simulink RTW automatic binay code generation automatic LabVIEW VI creation RS 232 USB Ethernet DSP 2 control system real time algorithm execution DSP 2 controller DSP 2 Learning Module or DSP 2 Robotic controller analog and digital input output signals Real system electric motor robot mechanism power converter etc Figure 1 DSP 2 Rapid Control Prototyping System Related DSP 2 documents More information s about DSP 2 controller can be found in DSP 2 User s Manual 1 Programming of DSP 2 control systems by using MATLAB Simulink is described in DSP 2 Library for Simulink User s Manual 3 Chapter s overview Chapter 2 contains basic instructions about installation uninstallation process and compiling procedure of installed ComVIEW toolkit files CHAPTER 1 INTRODUCTION 2 In Chapter 3 creation of virtual instrument for individual 5 2 application with without using MATLAB Simulink is described Chapter 4 contains basic description of ComVIEW template virtual instrument In Chapter 5 detailed description of virtual instrument execution proc
5. etc 10 CHAPTER 4 DESCRIPTION VI TEMPLATE users pa anos SPIP sjqnop ssn IND LINI ui 56125 sunbyuo Figure 6 VI block diagram CHAPTER 5 VI EXECUTION 5 execution 5 1 Initial settings 11 Before the first run some initial settings that will grantee the right VI execution must be set After a double click on the INIT function inside the VI block diagram Figure 6 DSP 2 Init Config window Figure 7 will appear DSP 2 Init Config dsp2InitConfig2 Communicaton Type RS 2320rTUSB C Set Trigger Serial Settings Capture amp Trigger Settings Communication Channel m Maximal Communication Baudrate 230400 _ Ethernet Settings Figure 7 Initial settings DSP 2 Init Config window contains the following controls C Remote Panel Remote Panels Settings Global Settings Show download progress window Show startup info window S Show Connection Manager window C e Communication Type this option defines communication type between the PC and the DSP 2 control system Communication can be achieved using RS 232 USB or ethernet e Serial Settings options inside Serial Settings section must be set if gt RS 232 or USB lt option is selected in Communication Type pop up control CHAPTER 5 VI EXECUTION 12 o Communication Channel In Communication
6. files FERI comview CHAPTER 2 INSTALLATION AND COMPILING PROCESS Figure 4 ComVIEW compiling window CHAPTER 3 VI CREATION PROCESS 6 3 VI creation process 3 1 VI creation using MATLAB Simulink In the latest version of DSP 2 library for Simulink 3 LabVIEW virtual instrument for selected Simulink model is automatically created during the code generation process if Generate LabVIEW Virtual Instrument option is selected in DSP 2 options Generated VI has the same name as the Simulink model model vi If virtual instrument model vi already exists in the folder VI creation update process will automatically update VI front panel The numbers of front panel controls and indicators of automatically created VI depend on the numbers of Simulink parameters those that are selected as Tunable Parameters the numbers of DSP2 TT DSP 2 To Terminal and DSP2 FT DSP 2 From Terminal blocks in Simulink model For each such block or parameter the following object on the VI front panel is created e Parameter numerical control e Blok DSP2 FT DSP 2 From Terminal numerical control e Blok DSP2 TT DSP 2 To Terminal numerical indicator Numerical controls represent DSP 2 input data On control value change event the newest value is sent from the to the DSP 2 control system VI indicators serve for numeric display of DSP 2 output data Automatically created front panel can be accommodated to the custom needs If the user
7. Source Slope Presamples Decimation and DSP Variables The meaning of Trigger Source Trigger Value Slope Presamples and DSP Variables parameters is described in Chapter Variable Capture on page 18 while the meaning of the Decimation parameter is described in sub Chapter Window Set Decimation During VI execution capture and trigger parameter can be changed inside the Variable Capture window menu Data Variable Capture e Remote Panels if virtual instrument VI will be remotely controlled via the Web browser then this option should be selected More information s about it can be found in Chapter 6 CHAPTER 5 VI EXECUTION 13 Allow remote user to stop the VI if this option is selected the remote user can stop the VI execution in this case Stop option inside the Operate menu is enabled Show login window if this option is selected then the login window will appear Figure 19 when the remote user takes control over the VI In login window the user must enter username and email address Global Settings Show download progress window if this option s selected download progress window Figure 8 will be shown during the binary code download process Show startup info window if this option is selected Start Up window Figure 9 with some initial DSP data will appear on the PC after the binary code starts executing on the DSP 2 system Show Connection Manager window this option defines if DS
8. installation process administrator privileges are required ComVIEW InstallShield Wizard Welcome to the InstallShield Wizard for ComVIEW The InstallShield Wizard will install ComVIEW on your computer To continue click Next Install Shield Figure 2 Installation programme for ComVIEW toolkit CHAPTER 2 INSTALLATION AND COMPILING PROCESS 4 2 2 ComVI EW uninstallation procedure In order to uninstall ComVIEW toolkit from the PC select Add Remove Programs option in Control Panel In the list of installed programs select ComVIEW and after that the button Change Remove In dialog window that will appear Figure 3 select Remove option ComvIEW InstallShield Wizard Welcome Modify repair or remove the program nance program This program lets you modify the current N Select new program features to add or select curently installed features to remove Reinstall all program features installed by the previous setup Remove all installed features geek eio jw Figure 3 ComVIEW uninstallation programme 2 3 VI compilation Before the first use of ComVIEW toolkit all installed files must be compiled to the current version of LabVIEW installed files has been compiled using LabVIEW 8 5 Compilation programme is available at Start gt All Programs gt FERI gt ComVIEW gt ComVIEW Mass Compile Figure 4 Compilation results will be stored in MassCompile log file
9. wishes to change the front panel control or indicator this can be done using the following procedure place the cursor on the front panel object control or indicator press the right mouse button in menu that appears select Replace Figure 5 option and after that select new object from the Controls palette BE AWARE front panel objects can be only numerical scalar type CHAPTER 3 VI CREATION PROCESS 7 visible Items Find Terminal Change to Indicator Description and Tip Create b Advanced 4 Representation b aui j Data Range Format Precision Fins Properties T Figure 5 Procedure replacing front panel object 3 2 VI creation without using MATLAB Simulink If the programming of DSP 2 control system is performed without using MATLAB Simulink LabVIEW virtual instrument for selected application must be manually created In windows folder Start gt All Programs gt FERI gt ComVIEW ComVIEW template VI exists Open this VI and save it by different name CAUTION before first use VI must be saved otherwise some errors will appear Created VI contains empty front panel and fully functional block diagram The users can place controls and indicators on the front panel and in such a way accommodate front panel to the custom needs BE AWARE front panel controls and indicators that will serve as input output data for DSP 2 control system can be only numeric
10. Channel pop up menu all available communication channels on the user s PC appears Communication channel to which the DSP 2 control system is connected must be selected CAUTION options in this control appear only if VISA driver or VISA Run Time Engine is installed on the PC The latest version of NI VISA driver can be downloaded from the National Instruments Inc home page www ni com o Maximal Communication baud rate this pop up control contains available communication baud rates e Ethernet Settings options inside Ethernet Settings section must be set if TCP IP option is selected in Communication Type pop up control o Web Address IP address of the DSP 2 system o Web Port Web Port must be set to 14001 e Executable File Name in Executable File Name edit box the full path to the DSP 2 executable file dsp2b hex must be entered This file will be downloaded to the DSP 2 system immediately after the VI run button is pressed Set Trigger if Set Trigger option is selected the trigger and sampling process will be automatically invoked after the binary code starts executing on the DSP 2 target Capture and trigger initial settings can be set up inside the Capture amp Trigger Settings section e Capture amp Trigger Settings this section is enabled if Set Trigger option is selected Controls inside this section enable initial trigger and sampling settings Section includes the following controls Trigger
11. ND REMOTE PANELS 21 TECHNOLOGY 6 LabVIEW Web publishing tool and Remote Panels technology Using LabVIEW Web publishing tool LabVIEW front panels can be quickly and effortlessly publish on the Web Once published anyone on the Web with the proper permissions can access and control the experiment without installing LabVIEW LabVIEW Web publishing tool automatically creates HTML document for selected LabVIEW virtual instrument VI and store it by default to the LabVIEW WWW folder When a remote viewer enters appropriate URL address the LabVIEW front panel appears in the Web browser Once connected to the remote experiment the client connection is automatically in a monitor state If another client is controlling the remote experiment the remote client is able to monitor the actions of the controlling client To request control of the program right click on the front panel and selection of Request Control is required If another client has control the controlling client is notified that control time has now become limited Once the timeout occurs or the controlling client released control application control is automatically switched to the requesting client Once the user granted control GUI controls become active and running the LabVIEW application is like running the application from the local environment More information s about LabVIEW Web publishing tool can be found on National Instruments Inc home page www ni com Using descr
12. P Connection Manager window will be shown after the binary code starts executing on the DSP 2 control system More about this option can be found in Chapter gt DSP Connection Manager lt on page 14 ComVI EW Instance ID More than one instance of ComVIEW VI can execute at the same time on the same PC This parameter defines VI instance number This number must be different for each VI 5 2 VI execution When the VI is started DSp 2 binary code is firstly downloaded to the DSP 2 control system The amount of currently transmitted data is shown in Downloading Progress indicator inside Downloading executable code to the DSP 2 Controller Figure 8 window i Downloading executable code to the DSP 2 board Downloading progress Downloading Baudrate 57600 Figure 8 Downloading executable code to the DSP 2 control system CHAPTER 5 VI EXECUTION 14 When transmission completes binary code automatically starts executing At the same time DSP 2 Start Up Information s Figure 9 window appears on the user s PC This window displays some basic DSP data and automatically disappears after a few seconds BE AWARE when Show startup info window option inside the DSP 2 Init Config window Figure 7 is NOT selected DSP 2 Start Up I nformation s window will not show up E DSP 2 Start Up Informations DSP 2 Start Up Informations Start program at 00081406 DSP2 TMS320C32 Board DRY v0 21 03 07 2001 University of Marib
13. SP 2 control system This function performs the following tasks send receive messages through the selected communication channel check generates CRC code decompose received messages and sends variables values to the message queues etc e Single Step function Single Step must be placed inside the bottom while loop Function performs two important tasks o In each while loop iteration this function automatically update those front panel indicators that are connected via DSP Connection Manager more about DSP Connection Manager exists in Chapter 5 3 on page 14 with the DSP 2 output variables Function generates matrix of all sampled variables Each variable on the DSP 2 target has its own identity number ID number Access to the individual sampled variable is possible by using Index Captured Variable function In this case variable ID numeric value must be connected to the second function input Access to all sampled variables can be done using Index Captured Variables function CAUTION on the output of mentioned functions CHAPTER 4 DESCRIPTION VI TEMPLATE 9 matrix appears only if variables are sampled look sub chapter Window Variable Capture inside Description and usage of ComVI EW Chapter e Terminate Term the Terminate function is the last function that is executed when the user selects Stop option in Operate menu This function releases all resources close communication channel empty used stacks
14. al scalar type These controls indicators must be after successful download procedure gt connected lt with the appropriate DSP 2 variables Detailed description of this connection procedure can be found in Chapter 5 3 DSP Connection Manager on page 14 CHAPTER 4 DESCRIPTION VI TEMPLATE 4 Description of VI template 4 1 Front panel Appearance of the VI front panel depends on the VI creation procedure Detailed description of the VI creation procedure exists in Chapter 3 1 VI creation using MATLAB Simulink and Chapter 3 2 VI creation without using MATLAB Simulink 4 2 Block diagram ComVIEW template block diagram Figure 6 is composed out of two while loops The upper while loop must stay unchangeable while the bottom while loop the user can modify to the custom needs VI block diagram contains the following functions e Initialization Init the function Initialization is the first function that is executed when the VI start button is pressed In this function the local global variables and events are initialized message queues are created run time menu is added to the VI front panel and an executable code download to the DSP 2 control system Function Init contains the user interface where some initial setting can be set More about this settings can be found in Chapter 5 1 on page 11 Server the function Message Server is responsible for the right transmission of messages between the PC and the D
15. default values for all front panel controls must be set when the remote users change If additionally Show login window option is selected login window will appear when the remote user gain control Figure 19 CHAPTER 6 LABVIEW WEB PUBLISHING TOOL AND REMOTE PANELS 23 TECHNOLOGY e Global settings switches Show start up information s and Show Connection Manager should be turned of For example in the case of power supply problem experiments must autonomously reinitialize to the initial state without administrator intervention Figure 19 login window CHAPTER 7 LITERATURE 24 7 Literature 1 Milan Curkovi DSP 2 User s Manual Institute of robotics Faculty of Electrical Engineering and Computer Science University of Maribor 2 Evgen Urlep DSP Terminal User s Manual Institute of robotics Faculty of Electrical Engineering and Computer Science University of Maribor 3 Darko Hercog DSP 2 Library for Simulink User s Manual Institute of robotics Faculty of Electrical Engineering and Computer Science University of Maribor 4 LabVIEW 8 5 User s manual www ni com
16. edure is presented Chapter contains description of VI initial settings binary code downloading processes meaning and usage of DSP Connection Manager window and description of run time menu Chapter 6 describes possibility of remote control of LabVIEW virtual instrument using the Web Chapter includes instructions for remote experiments development that are based on DSP 2 RCP systems CHAPTER 2 INSTALLATION AND COMPILING PROCESS 3 2 Installation and compiling process 2 1 ComVI EW installation procedure After inserting CD into the CD unit InstallShield installation programme for ComVIEW toolkit will be automatically invoked Figure 2 Installation programme will copy all toolkit files into the C Program files FERI ComVIEW folder and updates LabVIEW search path Prerequisite for successful installation of mentioned toolkit is prior installation of LabVIEW 8 5 or above If more than one versions of LabVIEW programme is installed on the PC installation process will update search path only for the latest version of LabVIEW CAUTION after successful installation all ComVIEW VI s must be compiled More about this option is described in Chapter VI compilation on page 4 For normally operation of ComVIEW toolkit NI VISA drivers or VISA Run Time Engine must be installed on the PC These drivers are freely available on the National Instruments Inc home page www ni com Support Drivers and Updates BE AWARE During the ComVIEW
17. ibed software and DSP 2 control hardware DSP based remote control laboratory has been realized This remote laboratory is accessible on the following Web page www weblab si CHAPTER 6 LABVIEW WEB PUBLISHING TOOL AND REMOTE PANELS 22 TECHNOLOGY E http famper13 meri uni mb si dcmot_preg htm Microsoft Internet Explorer File Edit View Favorites Tools Back E 2 Search gt Favorites 4 Address 48 http lJamperi3 meri uni mb si dcmot preg htm gt Links Snagit Sj ile Operate Data Help Vzbujanje PG Amplituda fi w fi_ref w ref Udc Decimation Jio 19 59931 14 7449 10 15 817 11 4086 20 Polozajni regulator Hitrostni regualtor Tokovni regulator 20 25 30 Kf 22 53 Ki 15 L5 1 35 gzs 40 1 Tw i 1 Ti 745 05 V5 Jes 10 001 50 0 5 ISR_time us Ji 1219 m 104 IZKLOPI MOTOR PO LJI REZULTATE 8 Amplituda Internet Figure 18 An example of virtual instrument which can remotely controlled using classical web browser 6 1 Guidelines for preparing remote experiments When the virtual instrument will be remotely controlled these initial settings are recommended Figure 7 Remote Panel this option should be selected In this case some additional mechanism is turned on which reinitialize all front panel controls to their default values caution before the first run
18. ly closed after 60 seconds CHAPTER 5 VI EXECUTION 19 Signals to capture Trigger DSP Signals Trigger source No of samples No of samples Slope Rising edge wv Threshold 9 0 Pre samples 0 Decimation 9 Ts Enable Trigger Number of samples 2 Time out 455 Figure 15 Variable Capture Window Window Set Decimation Using Set Decimation Figure 16 Window parameter Decimation can be set This parameter defines sampling period If for example this parameter is set to 10 that means that all in Variable Capture window selected variables are sampled each 10 interrupt service routine BE AWARE When Remote Panel option is selected inside the DSP 2 Init Config window Figure 7 Decimation window is automatically closed after 15 seconds gt Set Decimation Decimation jn Figure 16 Set Decimation Window CHAPTER 5 VI EXECUTION 20 Window View DSP 2 Variables amp Parameters By selecting View DSP 2 Variables amp Parameters option in Data menu Figure 17 appears where all DSP variables and parameters are listed BE AWARE When Remote Panel option inside the DSP 2 Init Config window Figure 7 is selected option View DSP 2 Variables amp Parameters in menu Data is not available Ts Doo 3 ___ E C 63 ___ e a p Figure 17 Window DSP 2 Variables amp Parameters CHAPTER 6 LABVIEW WEB PUBLISHING TOOL A
19. nel indicator e The value of which DSP input variable or DSP parameter will be set with which front panel control There are three connection options DSP input variable front panel control e DSP parameter lt front panel control DSP output Variable front panel indicator If one of the above mentioned couple is selected and one of the buttons Add Input to Connections Add Parameter to Connections or Add Output to Connections is pressed selected couple is added to the Connection Table When this action is performed selected control or indicator is deleted from the Front Panel Controls or Front Panel Indicators list box Individual couples can be deleted from the Connections Table list by using Delete Connection button while all connections in Connection Table list can be deleted by using Clear all Connections button When the OK button is pressed DSP Connection Manager window disappears and the Connection Table list is stored to the connections txt file By renewed VI execution the Connection Table inside the DSP Connection Manager window is initialized from connections txt file if this file already exists If the VI is automatically created using the Simulink then connections txt file is automatically created during the code generation VI creation process BE AWARE When option Show Connection Manager Window inside the DSP 2 Init Config window Figure 7 is NOT selected DSP Connection Manager Wind
20. or FERI WRONG FLASH Hardware init OK Variables init OK CAN init Figure 9 DSP 2 Start Up Information s Window 5 3 DSP Connection Manager ComVIEW is an advanced LabVIEW toolkit because the user does not need to wire front panel objects terminals with the block diagram functions These connections are performed programmatically using LabVIEW references This approach simplifies the VI usage and at the same time enables automatic graphical user interface creation When the binary code starts executing on the DSP 2 control system DSP Connection Manager Figure 10 window appears on the PC The Front Panel Controls list box contains the list of all VI front panel controls while the Front Panel Indicators list box contains the list of all numerical VI front panel indicators The DSP Input Variables DSP Parameters and DSP Output Variables list boxes contain the names of all inputs parameters and outputs of DSP 2 control system CHAPTER 5 VI EXECUTION 15 BE AWARE The names of inputs outputs and parameters that appear in DSP Input Variables DSP Parameters and DSP Output Variables list boxes inside the DSP Connection Manager window are retrieved from the DSP 2 target therefore the content of these lists depend on the binary code that is executing on the DSP 2 control target DSP Connection Manager enables the following definitions e The value of which DSP output variable will be presented in which VI front pa
21. ow will not appear CHAPTER 5 VI EXECUTION gt DSP Connection Manager Front Panel Controls Numeric 2 Send Ti Tw 16 DSP Input Signals ISR time Ia No of samples Ts Connections Ua Ude fi DSP Parameters me Tw Add Parameter to Connections Front Panel Indicators DSP Output Signals Ia of samples Ts Add Output to Ua Connections i ref w Connections Table Front Panel Controls and Indicators DSP Inputs Parameters and Outputs KFi Kp Kw Kw Ki Ki ISR time us ISR time Decimation Decimation Udc Udc fi fi Fi ref Fi ref Delete Connection Clear all Connections ojojoj ojo v v v Figure 10 DSP Connection Manager Window 5 4 Description and usage of ComVI EW menus When the VI is started VI menu Figure 11 appears on the top of the VI front panel This menu is composed out of the File Operate Data and Help sub menus In the following sections individual options inside these sub menus are described File Operate Data Help Figure 11 ComVIEW menu CHAPTER 5 VI EXECUTION 17 Menu File Menu File Figure 12 contains only two options Save Control Values when this option is pressed the values of all front panel controls will be stored in ini file e Load Control Values values of all front panel controls are reinitialized to the values that are retrieved from ini file New control values are also t
22. ransmitted and updated on the DSP 2 control system BE AWARE If Remote Panel option inside the DSP 2 Init Config window is selected then all items inside the File menu are disabled Save Control Values Load Control Values Figure 12 Menu File Menu Operate Menu Operate Figure 13 currently contains only Stop option When this option or the combination of Control keys is pressed the virtual instrument will logically stop executing BE AWARE When Allow remote user to stop the VI in Remote Panels section inside the DSP 2 Init Config window Figure 7 is NOT selected then the Stop option is disabled Stop Ctrl Figure 13 Menu Menu Data Menu Data Figure 14 is the most usable menu during the VI execution The following subsections contain description of individual options in Data menu Signal Capture Ctrl C Set Decimation Ctrl D View DSP 2 Variables amp Parameters Figure 14 Menu Data 5 18 Variable Capture Window By selecting menu Data gt Variable Capture Figure 14 Variable Capture window Figure 15 will appear This window contains Variable Capture and Trigger sections Variable Capture section contains the DSP Variables list box where all DSP input and output variables are listed and the Number of Samples where the number of samples for each variable can be set Variables that we want to capture can be selected using one of
23. the following procedures e Mouse click on the variable To select more than one variable hold the Control key and use mouse click using arrow cursors and Space key Selected variables are sampled the sampling period depends on the algorithm period and the parameter Decimation and store to the temporary memory on the DSP When the sampling process is finished captured data is transmitted from the DSP to the PC The number of samples per variable depend Number of Samples parameter In the current version of ComVIEW toolkit this parameter is preset to 250 In section Trigger trigger parameters can be set These parameters are e Trigger Source Trigger Source pop up menu contains the list of all DSP 2 inputs and outputs variables Parameter Trigger Source defines trigger source e Slope parameter Slope defines the slope of trigger variable Slope can be positive Rising Edge or negative Falling Edge e Trigger Level Trigger Level edit field defines the level of trigger variable at which the sampling is started e Presamples parameter Presamples defines the number of samples that we want to capture before sampling is started Parameter Presamples must be less than parameter Number of Samples e Enable Trigger with this button Enable Trigger se enables or disables Trigger options BE AWARE When Remote Panel option is selected inside the DSP 2 Init Config window Figure 7 Variable Capture window automatical

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