Question

我用W25Q16的读写函数测试w25Q64怎么总是失败？需要改动什么吗

Answer 1

u8 SPI_FLASH_SendByte(u8 byte)
{
/* Loop while DR register in not emplty */
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET);

/* Send byte through the SPI1 peripheral */
SPI_I2S_SendData(SPI1, byte);

/* Wait to receive a byte */
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);

/* Return the byte read from the SPI bus */
return SPI_I2S_ReceiveData(SPI1);
}