MCUmall EPROM BIOS Chip Burner Forum
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 GQ-3X & AT89C4051 - please help

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T O P I C    R E V I E W
flohses59 Posted - 09/12/2013 : 00:44:58
Hello,

I´m using GQ-3X (firmware 1.51), programmer software 6.23 and the ADP-15 MCS-51 adapter to program a AT89C4051 (20 pin DIP). Operating System is Windows XP SP3. Erasing, reading and blanc check are working fine. But on writing data to a chip I get the following message:

Elapsed time: 3.76 seconds.
Write failed, Address=0x000002, Buffer=0x3B Device=0xFA
Write failed

Such messages appeare on different addresses. When I read the written data all bytes are correct until the address in the message. The rest is on FF FF .....

I tried to use additional powersupply and I cleaned the adapter (socket and pins) but nothing has changed.
4   L A T E S T    R E P L I E S    (Newest First)
ZLM Posted - 09/19/2013 : 00:07:13
It may be the chip compatibility problem. I have tested my AT89C4051 and it works good without any problem. If you want working AT89C4051, then write to sales@mcumall.com for the availability.
flohses59 Posted - 09/18/2013 : 06:33:32
Are there any additional suggestions?
flohses59 Posted - 09/13/2013 : 02:35:19
Thanks for answer. But I tried speed -2 with the same behavior. I think there is something with timing. Is "blind" writing possible (without check while writing)?
ZLM Posted - 09/12/2013 : 23:36:14
try on a slow speed.

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