AnsweredAssumed Answered

USART DMA STM32F4

Question asked by david.deepak on Feb 5, 2013
Latest reply on Feb 5, 2013 by Clive One
I  am using Usart with Dma for external communication STM32F407
For transmission we can set the number of bytes to send.

But how could I use DMA for receiving, if the number of bytes is not known? I want to get an interrupt if no bytes are further coming so that I could process the received bytes.

Can I use USART idle interrupt for this purpose?

Why STM32  does not have a FIFO for USART? 

Thank You 

Outcomes