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TMS570LS1227: ADC in continuous mode

Sebastian Mazur
Prodigy 100 points

Part Number: TMS570LS1227

Tool/software:

Hi,

I am seeking clarification regarding the ADC reading conversion results in continuous mode for the TMS570LS1227 microcontroller.
- What is the recommended procedure (sequence) for reliably reading conversion results from the FIFO when operating in continuous mode?
 I assume that it should be based on ADGxINTFLG register.
- When should the FIFO be reset?

Let me know if further details or clarification are needed.

  • 0
    TI__Guru 74496 points

    Hi Sebastian,

    Apologies for the delayed response!

    Instead of Group Conversion End interrupt we should need to use Group Memory Threshold Interrupt for continuous mode to reduce the CPU overload. For more details refer below section in TRM.

    Sebastian Mazur said:
    - When should the FIFO be reset?

    You no need to reset FIFO manually, Whenever CPU read a result from FIFO then FIFO will automatically be updated with next converted result in memory. Refer above highlighted section in TRM.

    --
    Thanks & regards,
    Jagadish.