CCS/TMS320F28335: tms320f28335

Muhammad Waseem23

Tool/software: Code Composer Studio

Hello, i am using tms320f28335 for adc sampling of 0.1-2.6V three phase sine wave signals having frequency of 50Hz. I need a code for it. because i found adc examples having epwm SOC or interrupt based SOC. even a single phase code for these adc input specifications will also be helpful.

thanks

over 7 years ago

0 tlee over 7 years ago

TI__Guru 62975 points

Muhammad,

Can you elaborate on what you are looking for? Any one of the ADC SOC examples that you listed should be able to sample a 50Hz input.

-Tommy

0 Muhammad Waseem23 over 7 years ago in reply to tlee

Prodigy 35 points

to be specific i have grid voltages three phase chopped to 2v p-p with dc offset added 50Hz. i am getting results of adc as above. can you find the reason of adc results counts more than 4096?

0 tlee over 7 years ago in reply to Muhammad Waseem23

TI__Guru 62975 points

Muhammad,

Are you bit-shifting the ADCRESULT register values as is being done in the original example?

The need for this is documented in the ADC Reference Guide. There is also the option to use the AdcMirror registers which do not require bit-shifting.

-Tommy

0 tlee over 7 years ago in reply to tlee

TI__Guru 62975 points

Muhammad,

You may also refer to this archived F28335 workshop for training purposes.

-Tommy

0 tlee over 7 years ago in reply to tlee

TI__Guru 62975 points

Muhammad,

It has been a while since your last update. I assume that you were able to resolve your issue.

If not, please reply to this thread. If the thread has locked due to timeout, please create a new thread describing the current status of your issue.

-Tommy

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CCS/TMS320F28335: tms320f28335