SPI Full Duplex DMA with 2 STMF411RE EVA-Boards

[erincyldz]

I have 2 STM32F411RE-EVA Boards. I want to use one of them as SPI Master and the other one as slave and i want to receive data when a certain boolean goes high and triggers the slave. I want the slave one to send me 8 bits of data but i want to receive it in the DMA on master so my Master Module can continue to work on other functions when the transfer is happening. When the whole data transfer is complete i want to blink a led. I tried to work with DMA interrupts but i was not able to do what i wanted because im a beginner on STM. A help would be very useful since i cant find any sources on internet to achieve this using STMCubeIDE

[FBL · Accepted solution]

Hello @erincyldz 

I guess you mean nucleo or disco board?

You can check this example from STM32Cube\Repository\STM32Cube_FW_F4_V1.27.1\Projects\STM32F411E-Discovery\Examples\SPI\SPI_FullDuplex_ComDMA

It should help!