STM32 RS485 DMA peripheral flow control

[Alex Kovtun]

Posted on March 03, 2018 at 10:17

Hi,

The question is, can the hardware flow control of the uart be a peripheral flow controller of the dma?

#stm32 #rs485-dma #hardware-flow-control

[waclawek.jan]

Posted on March 03, 2018 at 10:54

Which STM32?

What do you exactly mean by 'peripheral flow controller of the DMA', and how does it relate to RS485?

JW

[Alex Kovtun · Accepted solution]

Posted on March 03, 2018 at 12:16

The answer will be found in the document below, page 14, 1.1.12 Flow control.

http://www.st.com/content/ccc/resource/technical/document/application_note/27/46/7c/ea/2d/91/40/a9/DM00046011.pdf/files/DM00046011.pdf/jcr:content/translations/en.DM00046011.pdf