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ADC with DMA arrest on STM32F4

Question asked by tyro on Dec 9, 2014
Latest reply on Jan 8, 2015 by tyro

Dear All,

My board is 429I-DISCO. I tried to code a continuous A/D conversion via DMA on FreeRTOS.
At first A/D conversion shortly after power-up was starting nomally by ADC_SoftwareStartConv(ADC3).

On the rest of the next sequence, the value of uhADC3ConvertedValue - mostly copy & paste from STM's Peripheral_Examples\ADC_DMA - is not updated.

According to single step execution, it seems to stopped the conversion in vTaskStartScheduler().

Does anyone knows why stop the A/D conversion process? How should I fix this?

tyro

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