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TMS320F280025C: AD conversion does not start.

Hiroki Sakaguchi
Prodigy 200 points

Part Number: TMS320F280025C
Other Parts Discussed in Thread: SYSCONFIG, C2000WARE

Tool/software:

Hello.

I am trying to get temperature using AD conversion, but it is not working.
Currently using ADCA to acquire some voltages successfully (e.g. current detection using shunt resistor).
So we are trying to acquire temperature using C12 of ADCC in the same way, but it does not work.
First of all, I attributed the start of the AD conversion to software (as in the sample code adc_ex1_soc_software), but it did not break out of the loop for whle minutes waiting for the conversion to finish.
Next, I tried the start of AD conversion with CPUTIMER, but it did not work.
It looks like the AD conversion was not started in the first place rather than not finished.
Is whale drinking possible?

Thank you in advance for your help.

Translated with www.DeepL.com/Translator (free version)

  • 0
    TI__Expert 3350 points

    Hi Hiroki,

    Are you using launchpad?

    Can you please double if you are using internal/external Vref for ADC on code and also on the board? Are you intending to measure temperature?

    Thanks,

    Susmitha

  • 0 in reply to Susmitha Bumadi
    Prodigy 200 points

    Hi Susmitha,

    We plan to integrate it into our products in the future, but are currently testing it on launchpad.
    Also, the MCU registers are set in the sysconfig file, but Vref is in internal reference mode.

    Thanks,

    Hiroki

  • 0 in reply to Hiroki Sakaguchi
    TI__Expert 3350 points

    If you are testing on launchpad, lets run simple example directly from C2000ware.

    On launchpad...if using external Vref..Apply voltage on J15 header. Please change accordingly in the code.

    If you are running ex1, you need to manually connect those channels to some input value(for example you can place jumper from that analog pin to 3.3V on launchpad)

    Can you please try above and let me know,