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Visitor II
February 20, 2024
Solved

ADC Pin Setup

  • February 20, 2024
  • 1 reply
  • 1406 views

I am trying to set up 3 ADC.  I set PA4 to ADC1_INP18, PA5 to ADC2_INP19 and PF11 to ADC1_INP2.  Will this be something that works?  I am monitoring 3 lines (none NEED to be fast).

I'm not clear on how to set this up.  I am multiplexing several inputs onto these, all single ended.  I'm not sure how we will read the data yet, timed, interrupt driven or polled.  I am replacing a LPC3250 and re-implementing the functionality.

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    Best answer by raptorhal2

    The simplest is all three channels on one ADC and DMA to a 3 word buffer with one start command.

    See the ADC DMA examples provided with the HAL library.

    1 reply

    Graduate
    February 20, 2024

    The simplest is all three channels on one ADC and DMA to a 3 word buffer with one start command.

    See the ADC DMA examples provided with the HAL library.