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Using DMA to read GPIOx_IDR on STM32F0xx

Question asked by kt1024 on Mar 3, 2015
Latest reply on Mar 5, 2015 by kt1024

before I try myself I would like to ask you whether it is possible to use a timer to start a DMA that reads from the GPIOx_IDR register into a memory location and whether the source would be a peripheral or memory endpoint.

Any other suggestion on how to sample two input lines would be welcome, the maximum rate should be around 800kHz. The MCU would have to be an STM32F0xx.

I hope you can help,