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Posted on July 03, 2016 at 07:14Hi How i can transmit and receive 1 byte by SPI and use of HAL layer for STM32F4 to do for example below routin: while(1) {     while (__HAL_SPI_GET_FLAG(&hspi1,SPI_FLAG_TXE) == RESET);     temp=0x00;     HAL_SPI_Tran...