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##

# DRV_SST39_PageWrite Function

## C

    bool DRV_SST39_PageWrite( const DRV_HANDLE handle, void *tx_data, uint32_t address )

## Summary

Writes one page of data starting at the specified address.

## Description

This function schedules a blocking write operation for writing maximum one page of data into flash memory.

## Preconditions

The DRV_SST39_Open() routine must have been called for the specified SST39 driver instance.

The flash address location which has to be written, must have been erased before using the SST39_xxxErase() routine.

The flash address has to be a Page aligned address.

## Parameters

Param | Description
--- | ---
handle | A valid open-instance handle, returned from the driver's open routine
tx_data | The source buffer containing data to be programmed into SST39 Flash
address | Write memory start address from where the data should be written

## Returns

- true

  - If the write request is successfully sent to the flash

- false

  - If Write enable fails before sending sector erase command to flash
  - If write command itself fails

## Example

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

    DRV_HANDLE handle;
    uint8_t CACHE_ALIGN writeBuffer[BUFFER_SIZE];
    bool status = false;

    if(false == DRV_SST39_SectorErase(handle))
    {
        printf("Error handling here");
    }

    for (uint32_t j = 0; j < BUFFER_SIZE; j += PAGE_SIZE)
    {
        if (DRV_SST39_PageWrite(handle, (void *)&writeBuffer[j], (MEM_ADDRESS + j)) == false)
        {
            status = false;
            break;
        }

        status = true;
    }

    if(status == false)
    {
        printf("Error handling here");
    }

## Remarks

None.