基于飞思卡尔MC9S12XEP的SPI程序

Addr[16:23]

Dummy = SPIReadWriteByte(SPI2, ((uint8_t *)&Address)[1]); //write Addr[8:15]

Dummy = SPIReadWriteByte(SPI2, ((uint8_t *)&Address)[2]); //write Addr[0:7]

for(i=0; i

Dummy = SPIReadWriteByte(SPI2, Buf[i]); //write the data to be sent }

SPICSHigh(Chip); //bring the chosen chip's CS pin high SPIWaitBusy(Chip); //判忙 }

///---------------------------------------------------------------------------------------------------------- //Function: 擦除flash一个sector //Param: //Return: //note

///----------------------------------------------------------------------------------------------------------

SPI_EXT void SPIEraseSector(uint8_t Chip, uint32_t Address) {

SPIWriteEnable(Chip); //write enable SPIWaitBusy(Chip); //判忙

SPICSLow(Chip); //bring the chosen chip's CS pin down

Dummy = SPIReadWriteByte(SPI2, SPI_CMD_4K_ERASE); //write 4K_Erase

command Dummy = SPIReadWriteByte(SPI2, ((uint8_t *)&Address)[0]); //write Addr[16:23]

Dummy = SPIReadWriteByte(SPI2, ((uint8_t *)&Address)[1]); //write Addr[8:15]

Dummy = SPIReadWriteByte(SPI2, ((uint8_t *)&Address)[2]); //write Addr[0:7]

SPICSHigh(Chip); //bring the chosen chip's CS pin high

SPIWriteDisable(Chip);

SPIWaitBusy(Chip); //判忙 }

///---------------------------------------------------------------------------------------------------------- //Function: 擦除flash一个block //Param: //Return: //note

///----------------------------------------------------------------------------------------------------------

SPI_EXT vo