Hi Kaouthar,On the master side if I do as below then no data will be received in dat_rec_second buffer: But if I do as this then data will be received in dat_rec_first buffer and not in dat_rec_second buffer.Is there any problem in the way I implemen...

Hi Kaouthar,When I debug on the slave side (STM32U5G9) the return status of the second call to HAL_SPI_TransmitReceive_DMA is HAL_BUSY. I think the delay time between two calls to this function is 5 ms which is enough to finish a transmit - receive p...

Hi Kaouthar,Thanks for your reply.This is my 2nd ST account. I use SPI1 port for both STM32U585 (Master - SPI Polling mode) and STM32U5G9 (Slave - SPI DMA) boards.Pin config:Flow chart:The flow chart is shown above, but currently the master cannot re...