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Original question:

AM2634-Q1: Autosar : ADC interrupt notification is called only once for CAT1 and CAT2 ISR configurations

AM263P4-Q1: AM263P4-Q1: Autosar : ADC ISR not triggered on period match event of PWM

liu wenhao
Prodigy 20 points
Part Number: AM263P4-Q1

Tool/software:

It seems that AM263P4-Q1(MCAL10.01 ) have the same issue as below:

https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1242811/am2634-q1-autosar-adc-interrupt-notification-is-called-only-once-for-cat1-and-cat2-isr-configurations.

How can I solve this problem?

  • 0
    TI__Guru**** 193286 points

    Hi Wenhao,

    Did you check if the PWM is generated correctly? I did a test with ePWM + ADC example, and test is passed. I haven't checked the sampled ADC values.

    How do you know the ADC is not triggered?

  • 0 in reply to QJ Wang
    Prodigy 20 points

    When all the ADC peripherals was configurated in ePWM+ADC in DMA mode , the DMA interrupt functions was excuted only once(the first time), so I thought the ADC is not trigged。

    But when I change the mcal configuration, ADC0 was ePWM+ADC in interrupt  mode,  and  ADC1~ADC4 was ePWM+ADC in DMA  mode,

    ADC0 interupt function can be excuted periodically and work normally，but ADC1~ADC4 does not work normally。

    Could you have a try in ePWM+ADC in DMA mode and tell me the result?