CCS/TMS320F28377S: configuration of ADC @ simulink environment is required

Hi Gannamraju,

Have you tried forcing other signals (like steady state DC with fixed level) to confirm that the hardware is working or have you tried with a different ADC module/channel?

Regards,

Joseph

Yes ,I tried changing the ADC channel and with a fixed dc (3.3 volts).
Thanks for reply.

Hi,

You can have a look at this video of mine: (For a different launchpad but you can refer the ADC configuration)

Regards,

Gautam

Yes ,i watched your video.
I configured the same as you shown in the video but did not use CAN.Can you guess the problem?
Or do I need to use serial communication?
Thanks&Regards,
G.SivaKumar

Hi Gannamraju,

With the fixed DC signal/or using a different channel, did you see the converted signal in the matlab simulink environment?

Thanks and regards,

Joseph

Hi Joseph,

I using different channel also I could see only zero signal.

Hi Gannanraju,

I think it is best to approach your debug by separating ADC conversion issue with Matlab/Simulink.  For now we do not have a  clue if this is because of the ADC not converting or if this is purely a Matlab/Simulink environment issue.  Let us start first with the ADC conversion portion and decouple Matlab/Simulink at the moment.  Do you have the capability to run your setup through CCS, this way we can isolate if the ADC is set up properly and is converting?

Thanks and regards,

Joseph

Hi,

I used the ADC program which is there in control suite and the same ADC channel has worked fine.

Regards,

G.Siva Kumar.

Hi Joseph and Gautam,
Thanks for the suggestions.
Is there any way that I can see the digital signal/values that are converted by ADC in the simulink environment?

Hi Gannamraju,

It is probably good to look at this specific thread for Matworks/Suimulink topics when controlling the TMS320F28377S device:  http://e2e.ti.com/support/microcontrollers/c2000/f/171/p/484814/2346225 . 

Regards,

Joseph