TMDSCNCD28379D: TMS320F28379D : ADC bloc in Matlab/SIMULINK and Scope

Rida Adardak

Prodigy 200 points

Part Number: TMDSCNCD28379D

Hello,

I need help, i can't see the real value on my scope on Simulink I do not know why.

The idea is to read an analog value (temperature sensor) and dispale it in real time on Simulink with the Scope.

The scope always displays zero.

over 5 years ago

0 MatthewPate over 5 years ago

TI__Guru* 77230 points

Rida,

I may need the MW team to take a look, but I think there is a different block to read the ADC results. The block above showing A_IN15 I believe this is to insert a simulated analog signal onto the ADC_AIN15 pin. To read SOC0, you should see a block with outputs labeled ADCA_RESULT0-xx; and you will want to read ADCRESULT0 since SOC0 is sampling the channel of interest.

Best,

Matthew

0 Rida Adardak over 5 years ago in reply to MatthewPate

Prodigy 200 points

Hello Matthew,

Thank you for the answer, but take a look at this library, i can not see an other ADC bloc.

What do you think ?

0 Brian McKay over 5 years ago in reply to Rida Adardak

Mastermind 9005 points

Rida,

Did you try the shipping example?

https://www.mathworks.com/help/supportpkg/texasinstrumentsc2000/ug/adc-pwm-synchronization-via-adc-interrupt.html

Can you read an ADC via CCS? If so, then we know your board is working correctly

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This block does work, assuming you have input on the correct pin and configured it correctly in Simulink.

If you continue to struggle, you may wish to contact MathWorks Tech Support directly.

cheers,

-Brian

0 Rida Adardak over 5 years ago in reply to Brian McKay

Prodigy 200 points

Hello,

Thank you for answering me Brian,

I tried this example, I can see the output signal on my oscilloscope, I put 3.3V in input ADCIN15 and as an ouput I have a PWM signal with 3.3V in Amplitude.

But on my scope Simulink, always I have zero !!!

I don not why !

0 Brian McKay over 5 years ago in reply to Rida Adardak

Mastermind 9005 points

Sounds like some sort of config error; this block does compile and run properly on C2000 devices. There are thousands of users who have gotten it to work.

Does the shipping example work?

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If you cant figure it out, contact MathWorks Tech Support - they should be able to assist.

-b

0 Rida Adardak over 5 years ago in reply to Brian McKay

Prodigy 200 points

Yes, it works correctly, I can see the output signal on my oscillo.

Rida

0 FAHAD BIN MAZHAR over 4 years ago in reply to Rida Adardak

Intellectual 295 points

Hello Rida,

I have faced the same problem and did not get yet how to see the values in scope.

Have you got any solution?

My ADC blocks take in signal which I can see in oscilloscope but not in scope.

Please let me know if you have found anything.

Regards

0 Rida Adardak over 4 years ago in reply to FAHAD BIN MAZHAR

Prodigy 200 points

Hello Fahad,

Can i know exactly what do you want to display ? and what did you made as a test ?

Rida

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C2000 microcontrollers forum

TMDSCNCD28379D: TMS320F28379D : ADC bloc in Matlab/SIMULINK and Scope