Hi,
I have just recieved a batch of used eprom 87c257 and i cannot program them using my GQ-4X fw 1.30
USB driver 2.0
Used software 4.01 at first, then downloaded the newest 6.12 and no difference.
Always hangs if I try to write pass adress B0
If I only write within that area it works fine.
Made a new device line inside devices.txt but i cannot alter the WVPP to other values because the software then complains when I start it.
my own made device:
Name="TMS87C257",ID="97C2",Class="87C257",Category="EPROM",MFG="TI",RVPP="5V",WVPP="12v",WVCC="5v";
Datasheet here:
h**p://dl.dropbox.com/u/15772069/TMS87C257.pdf
|
TMS 87C257-20JL
Posted - 04/14/2011 : 01:05:04
