Ok, I have attached a test of erasing (0xff) and then filling the eeproms with null's. Steps taken are described in write.txt
-rw-r--r-- 1 root root 262144 Nov 21 16:50 W29C020-12.after.erase.bin -rw-r--r-- 1 root root 262144 Nov 21 16:53 W29C020-12.after.zeroing.bin -rw-r--r-- 1 root root 262144 Nov 21 16:59 W29C020C-90B.after.erase.bin -rw-r--r-- 1 root root 262144 Nov 21 17:00 W29C020C-90B.after.zeroing.bin -rw-r--r-- 1 root root 3896 Nov 21 17:03 write.txt
I would like opinion. Do I run to store and replace both eerpoms, or there might be issue with flash writer. I need to decide by tomorrow.
[please cc]