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TMS320F280025: Tms320f280025 ADC sampling problem

Tonyx.wu
Genius 3075 points
Part Number: TMS320F280025

For ADC sampling, the external channel is configured with voltage. Soc0-3 is configured with four channels to sample this input analog quantity at the same time, but SOC has only 2 and 3 channels with sampling values, and the other two do not. What is the possible reason?

In addition, the circuit for sampling this part is so simple, dsp25_ A8 / C11 is the A8 pin of DSP, dsp25_ A4 / C14 is A4 pin

  • 0
    TI__Mastermind 33295 points

    Tonyx,

    You indicated there are 4 channels for SOC[0-3].  From information you provided, A8/C11 and A4/C14 are the 2 channels.  What are the other 2 ADC channels used by your application? Which two channels give the correct sampling data and which 2 channels do not have the data?   Can you share your ADC SOC setup and conversion code as well?  I want to see how the ADC channels have  been set up.

    Thanks.

    Joseph