UART with DMA mode

Posted on June 16, 2012 at 15:32

hi

everyone

need help regarding UART with DMA mode,

i am using STM32F407 Discovery Board,

i want to configure UART4 with DMA, and want it to generate interrupt when DMA completes filling the memory.

so should i configure the UART4's interrupt initializations also or only DMA interrupt initializations. I've attached my code.

any help will be appreciated a lot.

#selective-cut-n-paste #uart-usart-dma-interrupt

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Guru

Posted on July 25, 2016 at 03:24

You should probably consider just using an interrupt (IRQ) for RXNE to manage the bytes as they arrive,

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Associate

Posted on July 25, 2016 at 09:32

I am reading data from multiple devices and each device can send its data on same time so by using Interrupt i will again i miss data .

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