uint32_t FSMC_NAND_WriteSpareArea(uint8_t *pBuffer, NAND_ADDRESS Address, uint32_t NumSpareAreaTowrite)
{
uint32_t index = 0x00, numsparesreawritten = 0x00, addressstatus = NAND_VALID_ADDRESS;
uint32_t status = NAND_READY, size = 0x00;
while((NumSpareAreaTowrite != 0x00) && (addressstatus == NAND_VALID_ADDRESS) && (status == NAND_READY))
{
/* Page write Spare area command and address */
*(__IO uint8_t *)(Bank_NAND_ADDR | CMD_AREA) = NAND_CMD_AREA_C;
*(__IO uint8_t *)(Bank_NAND_ADDR | CMD_AREA) = NAND_CMD_WRITE0;
*(__IO uint8_t *)(Bank_NAND_ADDR | ADDR_AREA) = 0;
*(__IO uint8_t *)(Bank_NAND_ADDR | ADDR_AREA) = 0;
*(__IO uint8_t *)(Bank_NAND_ADDR | ADDR_AREA) = ADDR_1st_CYCLE(ROW_ADDRESS);
*(__IO uint8_t *)(Bank_NAND_ADDR | ADDR_AREA) = ADDR_2nd_CYCLE(ROW_ADDRESS);
/* Calculate the size */
size = NAND_SPARE_AREA_SIZE + (NAND_SPARE_AREA_SIZE * numsparesreawritten);
/* Write the data */
for(; index < size; index++)
{
*(__IO uint8_t *)(Bank_NAND_ADDR | DATA_AREA) = pBuffer[index];
}
*(__IO uint8_t *)(Bank_NAND_ADDR | CMD_AREA) = NAND_CMD_WRITE_TRUE1;
/* Check status for successful operation */
status = FSMC_NAND_GetStatus();
if(status == NAND_READY)
{
numsparesreawritten++;
NumSpareAreaTowrite--;
/* Calculate Next page Address */
addressstatus = FSMC_NAND_AddressIncrement(&Address);
}
}
//return (status | addressstatus);
if( addressstatus == NAND_VALID_ADDRESS )
return status;
else
return NAND_ERROR;
}
uint32_t FSMC_NAND_ReadSpareArea(uint8_t *pBuffer, NAND_ADDRESS Address, uint32_t NumSpareAreaToRead)
{
uint32_t numsparearearead = 0x00, index = 0x00, addressstatus = NAND_VALID_ADDRESS;
uint32_t status = NAND_READY, size = 0x00;
while((NumSpareAreaToRead != 0x0) && (addressstatus == NAND_VALID_ADDRESS))
{
/* Page Read command and page address */
*(__IO uint8_t *)(Bank_NAND_ADDR | CMD_AREA) = NAND_CMD_AREA_C;
*(__IO uint8_t *)(Bank_NAND_ADDR | ADDR_AREA) = 0;
*(__IO uint8_t *)(Bank_NAND_ADDR | ADDR_AREA) = 0;
*(__IO uint8_t *)(Bank_NAND_ADDR | ADDR_AREA) = ADDR_1st_CYCLE(ROW_ADDRESS);
*(__IO uint8_t *)(Bank_NAND_ADDR | ADDR_AREA) = ADDR_2nd_CYCLE(ROW_ADDRESS);
/* Data Read */
size = NAND_SPARE_AREA_SIZE + (NAND_SPARE_AREA_SIZE * numsparearearead);
/* Get Data into Buffer */
for ( ;index < size; index++)
{
pBuffer[index] = *(__IO uint8_t *)(Bank_NAND_ADDR | DATA_AREA);
}
numsparearearead++;
NumSpareAreaToRead--;
/* Calculate page address */
addressstatus = FSMC_NAND_AddressIncrement(&Address);
}
status = FSMC_NAND_GetStatus();
//return (status | addressstatus);
if( addressstatus == NAND_VALID_ADDRESS )
return status;
else
return NAND_ERROR;
}
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