Cannot erase CFE with TUMPA / ZJTAG

This site is best viewed in a modern browser with JavaScript enabled.

Cannot erase CFE with TUMPA / ZJTAG

slemke

Hi everyone,
I have a problem with ZJTAG and/or TIAO USB JTAG.
The target device is a WRT54GL with a 16 MB Intel Flash-Chip 28F128J3 – also tried with a 28F640J3 (8 MB).
The Chip is not being erased (therefore I do not know if programming works). Reading is fine.
I use the following command-line:
zjtag -erase:cfe /L1:5 /delay:100 /nocfi
The output seems good, but when I reread the flash the contents have not been erased and the router also boots.
I have already tried:
- several delays (100-999),
- L1:10,
- different combinations of: /nobreak /noreset /nodma
- another PC.
The target device is definitely ok – with the original wrt54.exe and a Xilinx parallel port cable the flash is being erased correctly.
Thanks,
Sebastian

TheOne

Thanks. This problem was solved in latest zjtag:
http://www.tiaowiki.com/download//file.php?id=37
thanks