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LP-MSPM0G3507: Output sine wave with comparator reference DAC

dai
Prodigy 10 points
Part Number: LP-MSPM0G3507

I am considering two sine wave outputs, one at 4 kHz and one at 40 kHz.
The 40 kHz sine wave uses DAC12 and DMA.
Therefore, we would like to use a comparator reference DAC for the 4kHz.
How can I switch the reference DAC setting with the DMA to output the sine wave?
(I would appreciate it if you could give me some specifics on how to do this.)
How many microseconds is the settling time of the comparator's reference DAC?

  • 0
    TI__Mastermind 39325 points

    Hi,

    For my understanding, you want to use the 8-bit DAC inside the COMP module to output 4kHz sine wave. 

    However, this 8-bit DAC does not connect to the main data bus. So, it can not work with DMA. If you are okay without using the DMA, than it should be easy to output sine wave through 8-bit DAC.

    Best regards,

    Cash Hao