Embedded Coder and C2000 PIL or External

Hi,

I hava a Simulink-Model containing some Sensor-Calibration, Calculation and PID-Controlers and am currently compiling it for my TI F28335 DSP. I get the *.out-File and run it on my DSP. That is working fine.

Now I would like to tune the parameters and see the variables in real time. I think the term for this is "Hardware in the loop". I have installed various versions of Matlab, CCS, CGT and Bios. I am not completely sure which combination is best but it seems that R2016a and CCS6 can work together.

I also would like to know: What are the differences between SiL, PiL and external mode? Which one is best for my application?

Can I use my JTAG-Connection on the XDS100v2-Debug-Probe or do I have to connect via SCI?

Thank you very much in advance!

Answer 1

[Antonin]

Hi Martin,

External mode is what you are looking for. It is supported over serial and CAN on the C2000 processors. Here is a detailed example on how to get started:

https://www.mathworks.com/help/supportpkg/texasinstrumentsc2000/examples/parameter-tuning-and-signal-logging-with-serial-external-mode.html

Make sure that you have a proper serial connection in place, these pages can help you establish your serial communication:

https://www.mathworks.com/help/supportpkg/texasinstrumentsc2000/ug/set-up-the-hardware-target.html

http://processors.wiki.ti.com/index.php/Using_the_serial_adapter_of_XDS100

I hope it helps,

Antonin.

[ashwinee jadhao]

I want to use CAN communication. Please help me

[文浩 朱]

Set the four pin pins of boot to SCI inF28335？choose GPIO28/29？

Answer 2

[Martin Grüterich]

Hey Antonin,

thank you very much for your links, I am sorry the problem must be somewhere else. I can compile and send the code to target (DSP) but not start the simulation.

Best regards, Martin

The error-message is as follows:

Simulation 5 92 2 Clear 
09:36 AM Elapsed: 1:32 min 
### Starting build procedure for model: model1 
Code Generation 2 46 
Elapsed: 48 sec 
[...some warnings...] 
### Unsupported CCS Version. Skipping CCS Project creation 
"### Invoking postbuild tool "Download" ..." 
C:/ti/ccsv7/ccs_base/SCRIPT~1/bin/dss.bat C:\PROGRA~1\MATLAB\R2017b/toolbox/idelink/EXTENS~1/ticcs/ccsdemos/RUNPRO~1.JS C:\PROGRA~3\MATLAB\SUPPOR~1\R2017b\toolbox\target\SUPPOR~1\tic2000\CCS_CO~1\F28335~3.CCX ../model1.out 
*** User inputs: 
Target Configuration: C:\PROGRA~3\MATLAB\SUPPOR~1\R2017b\toolbox\target\SUPPOR~1\tic2000\CCS_CO~1\F28335~3.CCX 
Program Name: ../model1.out 
Board Name: unspecified (connect to first board) 
CPU Name: unspecified (connect to first CPU) 

*** Starting debug session... 
*** Debug Session Name: Texas Instruments XDS100v2 USB Debug Probe_0/C28xx 
*** Board Name: Texas Instruments XDS100v2 USB Debug Probe_0 
*** CPU Name: C28xx 

*** Connecting to target... 
*** Loading the program to the target... 
*** Program is running. 

*** Disconnecting from target... 

*** Terminating debug session... 
*** LOAD & RUN DONE. 
"### Done invoking postbuild tool." 
### Successful completion of build procedure for model: model1 
Build process completed successfully 
[...some warning...] 
action: EXT_CONNECT 
Component:Simulink | Category:Model 
Error occurred while executing External Mode MEX-file 'ext_comm': 
Failed to connect to the target. A time-out occurred while waiting for the connection response from the target. Possible reasons for the time-out: 
a) The target is not switched on. 
b) The target is not connected to your host machine. 
c) The application for the model is not running on the target. You might have clicked the Stop button. If the Run button is not dimmed, click it. Otherwise, click the Build button, which downloads and runs your application on the target. 
Component:Simulink | Category:Block diagram error 
Unable to connect to the 'TI Delfino F2833x' target for 'model1'. 
Component:Simulink | Category:Model error

[Michael Schroth]

Hi Martin,

i know this answer is a bit late but i got the same problem today and maybe someone else needs the solution too.

Did you set your Simulation stop time to inf? In my case the Simulation stop time was set to 10 seconds and it seems that it started to count down although it wasn't even connected to the board. When it was ready to connect, the Simulation stop time already was over and i got the same error-message as you did. So i set the Simulation Stop time to inf, then it worked.

Best regards, Michael

[Martin Grüterich]

Thank you very much for your answer. My Problem was, that there is no SCI connection on this XDS 100 v2-Debug Probe. Now that I have connected my SCI using another cable, it works.

[文浩 朱]

Set the four pin pins of boot to SCI inF28335？choose GPIO28/29？