DMA and ADC

[orn]

Posted on October 08, 2012 at 15:25

If I enable three pins from the same ADC (eg ADC3) to acquire three different signals how do I retrieve the data of the three pins? using the DMA? please attached a few lines of code as an example?

thanks

[raptorhal2]

Posted on October 08, 2012 at 15:43

Each ADC has one data register, so DMA must be used for your requirement. One of the DMA initialization step is to point the DMA to your 3 word buffer to contain conversion results.

The standard peripheral library comes with a good DMA ADC example. Cheers, Hal