STM32F4XX SPI3 Data register is always 0xff and TXE is 1
Posted on January 22, 2018 at 19:55I am trying to interface SPI3 of STM32F4with external SPI F-RAm memory chip. But after writing dummy data(0x00) in data register, data register is set to 0xff and it doest not change and my TXE bit is always set. H...