We have a Flashcat Classic connected to a Winbond W25N01GV and were seeing some strange behavior with the chip erase and the read operation.
The chip erase takes an extremely long time (over 15 minutes, possibly up to over an hour). When it completed, the original data was still on the chip, so the erase operation was not successful. This flash chip does not actually have a chip erase command, so to do chip erase it should be doing block erase repeatedly. I took a peek with a logic analyzer during the chip erase, and it looked like it was repeatedly doing a read operation and then reading back all 0xFF's.
If I read the chip with 'Create image', this is successful, but took a long time (about 2 hours). Then, I was able to write the image in 7-8 minutes and this seemed to work.
Do you have any ideas why the chip erase would be failing, or why 'create image' takes such a long time?
The chip erase takes an extremely long time (over 15 minutes, possibly up to over an hour). When it completed, the original data was still on the chip, so the erase operation was not successful. This flash chip does not actually have a chip erase command, so to do chip erase it should be doing block erase repeatedly. I took a peek with a logic analyzer during the chip erase, and it looked like it was repeatedly doing a read operation and then reading back all 0xFF's.
If I read the chip with 'Create image', this is successful, but took a long time (about 2 hours). Then, I was able to write the image in 7-8 minutes and this seemed to work.
Do you have any ideas why the chip erase would be failing, or why 'create image' takes such a long time?
