Posted on May 17, 2011 at 12:41I have spent entirely too much time on this. The STM32 examples cover some of this. I built the example code and ran it. And looked hard at what it was doing. Nothing helped with my simple needs.
All I want is to convert two channels from a timer trigger. The ADC should then interrupt and will pick up the conversions and do my thing.
What works
Timer 2 runs at my correct rate. Timer 2 interrupt is set for CC2. Interrupts occur at the right rate. (I used it to play A=440 and listened with headphones.)
What does not work -
I get at most only one ADC EOC interrupt. On that interrupt I zero ADC_SR. I also read the data register.
A little more info -
Please note I have yet to setup DMA for the conversion results. If I can not get a proper EOC interrupt I don’t wish to complicate things with DMA.
I would rather not use DMA for this. I need to store both ADC results in two different formats. I am better off doing this in my ADC ISR. Would injected channels work for this?
