/*
* 函数名：main
* 描述 ：主函数
* 输入 ：无
* 输出 ：无
*/
int main(void)
{
uint8_t k;
/* 配置串口1为：115200 8-N-1 */
USART1_Config();
printf("\r\n 这是一个2M串行flash(W25Q16)实验 \r\n");
/* 2M串行flash W25X16初始化 */
SPI_FLASH_Init();
/* Get SPI Flash Device ID */
DeviceID = SPI_FLASH_ReadDeviceID();
Delay( 200 );
/* Get SPI Flash ID */
FlashID = SPI_FLASH_ReadID();
printf("\r\n FlashID is 0x%X, Manufacturer Device ID is 0x%X\r\n", FlashID, DeviceID);
/* Check the SPI Flash ID */
if (FlashID == sFLASH_ID) /* #define sFLASH_ID 0xEF3015 */
{
printf("\r\n 检测到华邦串行flash W25Q16 !\r\n");
/* Erase SPI FLASH Sector to write on */
SPI_FLASH_SectorErase(FLASH_SectorToErase);
/* 将发送缓冲区的数据写到flash中 */
SPI_FLASH_BufferWrite(Tx_Buffer, FLASH_WriteAddress, BufferSize);
for( k=0; k<6; k++ )
printf("\r\n 写入的数据为：%d \r\n", Tx_Buffer[k]);
/* 将刚刚写入的数据读出来放到接收缓冲区中 */
SPI_FLASH_BufferRead(Rx_Buffer, FLASH_ReadAddress, BufferSize);
for( k=0; k<6; k++ )
printf("\r\n 读出的数据为：%d \r\n", Tx_Buffer[k]);
/* 检查写入的数据与读出的数据是否相等 */
TransferStatus1 = Buffercmp(Tx_Buffer, Rx_Buffer, BufferSize);
if( PASSED == TransferStatus1 )
{
printf("\r\n 2M串行flash(W25Q16)测试成功!\n\r");
}
else
{
printf("\r\n 2M串行flash(W25Q16)测试失败!\n\r");
}
}// if (FlashID == sFLASH_ID)
else
{
printf("\r\n 获取不到 W25Q16 ID!\n\r");
}
SPI_Flash_PowerDown();
while(1);
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
RCC_Configuration();
SPI1_Flash_GPIO_Configuration();
SPI1_Flash_Configuration();
/* Get Flash ID */
FlashID =SPI_FLASH_ReadID();
if(sFLASH_ID== FlashID )
{
/* Erase SPI FLASH Sector */
SPI_FLASH_SectorErase(FLASH_WriteAddress);
/* Write Buffer_Tx to SPI FLASH */
SPI_FLASH_BufferWrite(Buffer_Tx,FLASH_WriteAddress,BufferSize);
/* Read data from SPI FLASH */
SPI_FLASH_BufferRead (Buffer_Rx,FLASH_ReadAddress,BufferSize);
/* if TransferStatus1 =PASSED, the Flash write and read operation are correct£¬
if TransferStatus1 =FAILED, the Flash write and read operation are failed */
TransferStatus1 = Buffercmp(Buffer_Tx, Buffer_Rx, BufferSize);
/* Erase SPI FLASH Sector */
SPI_FLASH_SectorErase(FLASH_WriteAddress);
/* Read data from SPI FLASH */
SPI_FLASH_BufferRead(Buffer_Rx, FLASH_ReadAddress, BufferSize);
for (Index = 0; Index < BufferSize; Index++)
{
if (Buffer_Rx[Index] != 0xFF)
{
/* if TransferStatus2 =PASSED, the Flash erase and read operation are correct£¬
if TransferStatus2 =FAILED, the Flash erase and read operation are failed */
TransferStatus2 = FAILED;
}
}
}
while (1)
{
}
}
/**
* @brief Initializes the SPI FLASH
* @param None
* @retval None
*/
ErrorStatus SPI_FLASH_Init()
{
/* Make sure we only initialize it once */
if (!prvInitialized)
{
/* Mutex semaphore for mutual exclusion to the SPI Flash device */
xSemaphore = xSemaphoreCreateMutex();
/* Init GPIO */
FLASH_GPIO_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Pin = FLASH_SCK_PIN | FLASH_MISO_PIN | FLASH_MOSI_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Alternate = GPIO_AF5_SPI2;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(FLASH_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pin = FLASH_CS_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
HAL_GPIO_Init(FLASH_PORT, &GPIO_InitStructure);
/* Deselect the FLASH */
prvSPI_FLASH_CS_HIGH();
/* DMA Init */
__DMA1_CLK_ENABLE();
HAL_DMA_Init(&DMA_HandleTx);
/* Associate the initialized DMA handle to the the SPI handle */
__HAL_LINKDMA(&SPI_Handle, hdmatx, DMA_HandleTx);
HAL_DMA_Init(&DMA_HandleRx);
/* Associate the initialized DMA handle to the the SPI handle */
__HAL_LINKDMA(&SPI_Handle, hdmarx, DMA_HandleRx);
/* NVIC configuration for DMA transfer complete interrupt (SPI2_TX) */
HAL_NVIC_SetPriority(DMA1_Stream4_IRQn, configLIBRARY_LOWEST_INTERRUPT_PRIORITY, 0);
HAL_NVIC_EnableIRQ(DMA1_Stream4_IRQn);
/* NVIC configuration for DMA transfer complete interrupt (SPI2_RX) */
HAL_NVIC_SetPriority(DMA1_Stream3_IRQn, configLIBRARY_LOWEST_INTERRUPT_PRIORITY-1, 0);
HAL_NVIC_EnableIRQ(DMA1_Stream3_IRQn);
/* Init SPI */
FLASH_SPI_CLK_ENABLE();
HAL_SPI_Init(&SPI_Handle);
/* Read FLASH identification */
prvDeviceId = SPI_FLASH_ReadID();
if (prvDeviceId == SPI_FLASH_S25FL127SABMFI101_ID)
{
/* Select the FLASH */
prvSPI_FLASH_CS_LOW();
/* Send "Write Enable Status" instruction */
prvSPI_FLASH_SendReceiveByte(SPI_FLASH_CMD_EWSR);
/* Deselect the FLASH */
prvSPI_FLASH_CS_HIGH();
/* Select the FLASH */
prvSPI_FLASH_CS_LOW();
/* Send "Write Status Register" instruction and set all bits to 0 */
prvSPI_FLASH_SendReceiveByte(SPI_FLASH_CMD_WRSR);
prvSPI_FLASH_SendReceiveByte(0);
/* Deselect the FLASH */
prvSPI_FLASH_CS_HIGH();
prvInitialized = true;
return SUCCESS;
}
}
return ERROR;
}
