DSTATUS disk_initialize (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
switch (pdrv) {
case SPI :
sFLASH_Init();
DBG_MSG("sFLASH_ReadID()=0x%x", sFLASH_ReadID());
return 0;
default:
return STA_NODISK;
}
return STA_NOINIT;
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
files (startup_stm32f40_41xxx.s/startup_stm32f427_437xx.s/startup_stm32f429_439xx.s)
before to branch to application main.
*/
/* Initialize LEDs mounted on EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
/* Initialize the SPI FLASH driver */
sFLASH_Init();
/* Get SPI Flash ID */
FlashID = sFLASH_ReadID();
/* Check the SPI Flash ID */
if (FlashID == sFLASH_M25P64_ID)
{
/* OK: Turn on LD1 */
STM_EVAL_LEDOn(LED1);
/* Perform a write in the Flash followed by a read of the written data */
/* Erase SPI FLASH Sector to write on */
sFLASH_EraseSector(FLASH_SECTOR_TO_ERASE);
/* Write Tx_Buffer data to SPI FLASH memory */
sFLASH_WriteBuffer(Tx_Buffer, FLASH_WRITE_ADDRESS, BufferSize);
/* Read data from SPI FLASH memory */
sFLASH_ReadBuffer(Rx_Buffer, FLASH_READ_ADDRESS, BufferSize);
/* Check the correctness of written dada */
TransferStatus1 = Buffercmp(Tx_Buffer, Rx_Buffer, BufferSize);
/* TransferStatus1 = PASSED, if the transmitted and received data by SPI1
are the same */
/* TransferStatus1 = FAILED, if the transmitted and received data by SPI1
are different */
/* Perform an erase in the Flash followed by a read of the written data */
/* Erase SPI FLASH Sector to write on */
sFLASH_EraseSector(FLASH_SECTOR_TO_ERASE);
/* Read data from SPI FLASH memory */
sFLASH_ReadBuffer(Rx_Buffer, FLASH_READ_ADDRESS, BufferSize);
/* Check the correctness of erasing operation dada */
for (Index = 0; Index < BufferSize; Index++)
{
if (Rx_Buffer[Index] != 0xFF)
{
TransferStatus2 = FAILED;
}
}
/* TransferStatus2 = PASSED, if the specified sector part is erased */
/* TransferStatus2 = FAILED, if the specified sector part is not well erased */
}
else
{
/* Error: Turn on LD2 */
STM_EVAL_LEDOn(LED2);
}
while (1)
{}
}
int sFLASH_SelfTest(void)
{
uint32_t FLASH_TestAddress = 0x000000;
//Note: Make sure BufferSize should be Even and not Zero
uint8_t Tx_Buffer[] = "Test communication with SPI FLASH!";//BufferSize = 34
uint32_t BufferSize = (sizeof(Tx_Buffer) / sizeof(*(Tx_Buffer))) - 1;
uint8_t Rx_Buffer[BufferSize];
uint8_t Index = 0;
uint32_t FlashID = 0;
int TestStatus = -1;
/* Get SPI Flash ID */
FlashID = sFLASH_ReadID();
/* Check the SPI Flash ID */
if(FlashID == sFLASH_MX25L8006E_ID)
{
/* Perform a write in the Flash followed by a read of the written data */
/* Erase SPI FLASH Sector to write on */
sFLASH_EraseSector(FLASH_TestAddress);
/* Write Tx_Buffer data to SPI FLASH memory */
sFLASH_WriteBuffer(Tx_Buffer, FLASH_TestAddress, BufferSize);
/* Read data from SPI FLASH memory */
sFLASH_ReadBuffer(Rx_Buffer, FLASH_TestAddress, BufferSize);
/* Check the correctness of written data */
for (Index = 0; Index < BufferSize; Index++)
{
if (Tx_Buffer[Index] != Rx_Buffer[Index])
{
//FAILED : Transmitted and Received data by SPI are different
TestStatus = -1;
}
else
{
//PASSED : Transmitted and Received data by SPI are same
TestStatus = 0;
}
}
/* Perform an erase in the Flash followed by a read of the written data */
/* Erase SPI FLASH Sector to write on */
sFLASH_EraseSector(FLASH_TestAddress);
/* Read data from SPI FLASH memory */
sFLASH_ReadBuffer(Rx_Buffer, FLASH_TestAddress, BufferSize);
/* Check the correctness of erasing operation data */
for (Index = 0; Index < BufferSize; Index++)
{
if (Rx_Buffer[Index] != 0xFF)
{
//FAILED : Specified sector part is not well erased
TestStatus = -1;
}
else
{
//PASSED : Specified sector part is erased
TestStatus = 0;
}
}
}
return TestStatus;
}
