AnsweredAssumed Answered

stm32f4 adc dma 14 analog inputs

Question asked by oliver on Feb 20, 2015
Latest reply on Mar 8, 2016 by Clive One
Hello

It seems that I do have huge challange.
I need 14 analog inputs working continuously.
According this I'm using DMA transmission.

I've setup the GPIO config
I've setup the DMA config.
I've setup the ADC1 config.for all 14 analog inputs

I've compared these config with some of the examples here at this forum.
All of them show me differences in particular. But what ever I configure at DMA and ADC it will not work.
The ADC gets one time a value and seems then to be stuck. The DMA does nothing. The memory array is empty all the time.
I've check the configuration more times and found some faults due my own settings. But still the same problem like described above.
Does anyone know whether there is a matching example anywhere or can giv eme a hint what I hav eto take care for e.g. for the deployment of the 14 analog inputs etc.?

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