About EMarq.1

EMarq.1 · 2021-06-15

I want to read ADC values with DMA at specific times (I have an analog multiplexer that needs to switch and I want to synchronize the ADC readings with the mux switching). I have the ADC triggered by a timer and stop the ADC immediately using HAL_AD...

EMarq.1 · 2020-09-15

I'm using a 32H743 with CubeMx and Keil. I want to do DMA on a single ADC channel. In Cube I set up the ADC in Continuous Conversion Mode, Regular Conversion launched by software, and set the Conversion Data Management to DMA Circular Mode., and set...

EMarq.1 · 2021-06-18

Hi JW, thanks for your reply. It turned out not to be the problem, but it prompted me to go through the low level DMA code to try to get a rough idea of how long the stop process would take. In the process I discovered an error being generated by H...

EMarq.1 · 2020-09-16

I don't think that's it - I see the same problem on the H743 even if I increase the sampling time to the maximum (810.5 cycles, and I was already running at just 4 MHz clock). No problem with the F413 at 3 cycle sample time and 16 MHz with divide by...

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I'm doing ADC readings with DMA into a regular (non-circular) buffer but I always get the overrun bit set in the ADC status register even though I stop the DMA immediately in HAL_ADC_ConvCpltCallback.

Can't get ADC DMA to work with STM32H743

Re: I'm doing ADC readings with DMA into a regular (non-circular) buffer but I always get the overrun bit set in the ADC status register even though I stop the DMA immediately in HAL_ADC_ConvCpltCallback.

Re: Can't get ADC DMA to work with STM32H743