//读取芯片ID W25X16的ID:0XEF14
u16 SPI_Flash_ReadID(void)
{
u16 Temp = 0;
SPI_FLASH_CS=0;
SPIx_ReadWriteByte(0x90);//发送读取ID命令
SPIx_ReadWriteByte(0x00);
SPIx_ReadWriteByte(0x00);
SPIx_ReadWriteByte(0x00);
Temp|=SPIx_ReadWriteByte(0xFF)<<8;
Temp|=SPIx_ReadWriteByte(0xFF);
SPI_FLASH_CS=1;
return Temp;
}
里面的SPIx_ReadWriteByte(0x00)是什么用的？ |
楼主
