• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Subscribers 32 subscribers
  • Views 362 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AM2634-Q1: RTI triggers ADC SOC, if RTI interrupt flag not cleared, does it always trigger ADC SOC

Will Gao
Intellectual 2335 points
Part Number: AM2634-Q1

Hi BU, 

One hardware behavior question needs your confirmation: 

when using RTI triggers ADC SOC, and if the RTI interrupt flag not cleared by SW, does it trigger ADC SOC all the time? 

Best, 

Will 

  • 0
    TI__Guru*** 134855 points

    Hello Will,

    Reading through the TRM details, it isn't explicitly stated what should occur, but from what I read, my takeaway is that the ADC SOC trigger is based on event triggers and therefore not clearing the interrupt flag should not trigger the ADC SOC all the time. I don't see any indication that the ADC would 'poll' the RTI interrupt flag and continue triggering because its tripped, and I don't believe the RTI would continue to issue events to the ADC because the interrupt flag is not cleared - if anything it would be the opposite in that another event wouldn't be issued until the flag is cleared.

    All that said, it's based on my interpretation of what is stated in the TRM and we will check with the designers to confirm my assumptions about how the RTI events interact with the ADC SOC triggering is as described.

    Best Regards,

    Ralph Jacobi

  • +1
    TI__Expert 6985 points

    Hello Will,

    when using RTI triggers ADC SOC, and if the RTI interrupt flag not cleared by SW, does it trigger ADC SOC all the time?

    This behavior is configurable in RTI

    RTI has this register RTIINTCLRENABLE to enable/disable auto-clear of interrupts.

     

    If autoclear disabled: If the RTI interrupt flag is not cleared by SW, it does not continue to trigger ADC SOC

    If autoclear enabled: If the RTI interrupt flag is not cleared by SW, RTI continues to trigger ADC SOC

    Please refer 4.26.36 MSS_RTIn_RTIINTCLRENABLE Registers in register addendum. spruj42c.pdf

    Thanks

    Sanjeev

  • 0 in reply to Sanjeev Karaiyan
    TI__Intellectual 2335 points

    Hi Ralph and Sanjeev, 

    Thanks for your great support, well understand now. 

    Regards, 

    Will