About JPate.1

JPate.1 · 2020-02-05

I am using Nucleo-F429ZIT. I have used UART4 and linked it with DMA for reception. The EN flag bit in DMA_SxCR register is cleared when I connect peripheral board with STM. This issue is happening only when I disconnect the power supply of peripheral...

JPate.1 · 2020-02-05

Thank you @Community member for response.I have also tried to power up the periph board using external power supply and in that case I have make sure about common ground. (I have attached the block diagram of connections I made)Also, in my project,...

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Why the EN flag bit in DMA_SxCR register is cleared when I powered up the peripheral device? I have linked DMA with UART for receiving purpose only.

Re: Why the EN flag bit in DMA_SxCR register is cleared when I powered up the peripheral device? I have linked DMA with UART for receiving purpose only.