My problem is similar to this
except for one major difference. I am using only SoftDevice and I disable SoftDevice before I do the writes. I follow the requirements by writing in small hunks. The code that does the write is as follows
// Now we have to write the data in hunks into flash
// Each page is 1024 bytes, and a write is in 4-byte hunks
// So we will find the number of 1024 byte pages to write,
// and then the number of 4-byte hunks left over.
// Disable soft device so we don't have to deal with events
sd_softdevice_disable();
// Buffer to write to flash. Need to write it in four-byte hunks
uint32_t *ptr32 = (uint32_t *)keysDataBuffer;
while (true)
{
// Where to write
addr = (uint32_t *)(pg_size * pg_num);
// Erase page:
while(true)
{
err_code = sd_flash_page_erase(pg_num);
if (err_code == NRF_SUCCESS)
{
break;
}
if (err_code != NRF_ERROR_BUSY)
{
NRF_LOG_DEBUG("Erasing data returned error %u.", err_code);
APP_ERROR_CHECK(err_code);
}
}
i = (size >= pg_size) ? (pg_size >> 2) : (size >> 2); // four-byte hunks to write; size is evenly divisible by four
while(true)
{
err_code = sd_flash_write(addr, ptr32, i);
if (err_code == NRF_SUCCESS)
{
break;
}
if (err_code != NRF_ERROR_BUSY)
{
NRF_LOG_DEBUG("Writing data returned error %u.", err_code);
APP_ERROR_CHECK(err_code);
}
}
size = size - pg_size; // Subtract a page size from the total size
if (size <= 0) // if zero or less, all data has been written
{
break;
}
pg_num++;
ptr32 = (uint32_t *)(keysDataBuffer + pg_size);
}
free(keysDataBuffer);
NRF_LOG_DEBUG("Flash written");
The code works fine when running on the nRF52840 DK. What do I need to do to write to flash on the dongle? Clearly I cannot use NRF_LOG statements so I have used LED buttons to see how far I get and it does in the while loop.
