Resolved! \0 is added in the front of my message when using HAL_SPI_Receive_DMA()
Hello,I'm commucating two STM32 F4 boards using SPIThe first board is configured as a Master and used to only transmit data #define message_tx_size 4 uint8_t message_tx[message_tx_size] = "ABCD"; .... int main(void){ while (1){ HAL_SPI_Transmit...