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originally posted by jérôme@Apr 28 2006, 04:19 AM
the problem is that each access with 'alt_write_flash'[/b] function seems to erase the entire block/sector of the flash (which represent 0x10000 datas). Is there a solution to my problem ?
Thanks,
Jérôme
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[/b]
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This is the nature of using most any flash device.
For your situation, it makes sense to use the alt_write_flash_block() function. It won't automatically erase the flash....like alt_write_flash() does. In this way you could write to the flash in whatever data size you want and detect when a sector erase is necessary yourself.
Something like the following should work if you implement it in a loop passing new "data" in with each pass:
if(new_flash_block != current_flash_block)
{
printf("\nFlash Block %d", new_flash_block);
alt_erase_flash_block(fd, (new_flash_block * regions->block_size),
regions->block_size);
current_flash_block = new_flash_block;
}
alt_write_flash_block(fd, (current_flash_block * regions->block_size),
target_addr, data, data_len);
Cheers,
- slacker
Honored Contributor
