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TMS320F28379D: ADC interrupt after power off and on

Akash Ahirwar
Prodigy 180 points
Part Number: TMS320F28379D


Tool/software:

In the attached figure, the upper waveform represents the ADC_A interrupt, which is in CPU1, and the lower waveform represents the ADC_B interrupt, which is in CPU2. After power off and power on, the first interrupt in CPU2 is missing.  Please clarify the possible reason for this?

  • 0
    TI__Expert 4690 points

    Hello,

    To troubleshoot this issue, you can try the following:

    • Verify the interrupt priorities: Check the interrupt priorities for both ADC_A and ADC_B interrupts to ensure that they are properly set and not being overridden.
    • Check the CPU2 initialization: Verify that CPU2 is properly initialized and not in a reset state after power on.
    • Monitor the shared resources: Investigate if there are any shared resources being accessed by both CPUs that might be causing a conflict or synchronization issue.
    • Verify the interrupt handling: Check the interrupt handling mechanisms for both CPUs to ensure that they are properly configured and not missing any interrupts.
    • Use a debugger: Use a debugger to step through the code and monitor the interrupt handling mechanisms to identify the root cause of the issue.