| T O P I C R E V I E W |
| Diarra Anderson |
Posted - 05/14/2010 : 07:47:14
I am receiving write errors when programming an Intel 28F020 eprom.
Not all data is bad. Bad addresses seem to be different everytime I try to program. Here is one of the verification messages I receive when programming.
Erasing...
Elapsed time: 3.76 seconds.
Erase completed.
Blank checking... Code
Elapsed time: 1.73 seconds.
Chip is blank
Writing... Code
Elapsed time: 112.63 seconds.
Device write completed OK
Verifying... Code
VerifyFailed, Address=0x000110, Device=0xA2, Buffer=0x00
VerifyFailed
Elapsed time: 105.26 seconds.
Programmer is GQ-4X
H/W Re: GQ-4X Re-1.20
USB Driver Re.2.0
Software Re. 5.02B
Thanks
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| 5 L A T E S T R E P L I E S (Newest First) |
| ZLM |
Posted - 05/15/2010 : 00:19:41
It seems there are some pin contact problems. Wiggling the chip when locking the chip on ZIF, this will help on contact problem.
Once chip passed verification, then the read should be OK. You can try to verify again after write-verification process.
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| Diarra Anderson |
Posted - 05/14/2010 : 13:04:20
I have another problem. After the device is programmed, it passes the verification. But if I read the device again the checksum changes. Each time I reread the device chechsum changes. |
| Diarra Anderson |
Posted - 05/14/2010 : 12:41:11
It works, Thanks. |
| Diarra Anderson |
Posted - 05/14/2010 : 12:35:27
Thanks for the quick response. I will try this beta version. |
| ZLM |
Posted - 05/14/2010 : 12:05:06
Please try:
http://www.mcumall.com/download/TrueUSBWillem/GQUSBPrgRe5.03Beta.exe |
