1.1.8.4.12 DRV_SFDP_PageWrite Function

bool DRV_SFDP_PageWrite( const DRV_HANDLE handle, void *tx_data, uint32_t address );

Writes one page of data starting at the specified address.

This function schedules a non-blocking write operation for writing maximum one page of data into Flash memory. The page size is determined from SFDP discovery.

The requesting client should call DRV_SFDP_TransferStatusGet() API to know the current status of the request.

The DRV_SFDP_Open() routine must have been called for the specified SFDP driver instance. The Flash address location which has to be written, must have been erased before using the SFDP_xxxErase() routine. The Flash address has to be a Page aligned address.

True:

• If the write request is successfully sent to the Flash

False:

• If Write enable fails before sending write command to Flash
• If write command itself fails

#define PAGE_SIZE 256
#define BUFFER_SIZE 1024
#define MEM_ADDRESS 0x0

DRV_HANDLE handle; // Returned from DRV_SFDP_Open
uint8_t CACHE_ALIGN writeBuffer[BUFFER_SIZE];
bool status = false;

if(false == DRV_SFDP_SectorErase(handle, MEM_ADDRESS))
{
    // Error handling here
}

// Wait for erase to be completed
while(DRV_SFDP_TransferStatusGet(handle) == DRV_SFDP_TRANSFER_BUSY);

for (uint32_t j = 0; j < BUFFER_SIZE; j += PAGE_SIZE)
{
    if (DRV_SFDP_PageWrite(handle, (void *)&writeBuffer[j], (MEM_ADDRESS + j)) == false)
    {
        status = false;
        break;
    }
    
    // Wait for write to be completed
    while(DRV_SFDP_TransferStatusGet(handle) == DRV_SFDP_TRANSFER_BUSY);
    status = true;
}

if(status == false)
{
    // Error handling here
}

None.