-----Original Message-----
From: Cameron Rector <crector@pacbell.net>
To: vectorlist@vectorlist.org
Date: Thu, 5 Oct 2006 08:32:50 -0700 (PDT)
Subject: Re: VECTOR: Programmer troubles with a new twist.
>
> Ok, I tried the pull-up resistor idea and there was no change.
>
> What I did find was address 800h contains the same data as 000h and 801h = 001h and so on. It appears that the programmer is resending the first half of the ram to 800h and above.
> I only checked the first 8 addresses and the data matches, so I assume that it continues.
>
> The programmer has internal memory and when I query 800h it has the correct data stored there.
>
> I looks like it programs the first 2048 in the bottom half of the eprom and then programs the first 2048 in the top half of the eprom.
>
> Anythoughts other than the trash can?
>
why dont you just trace the a11 signal and change the parts that drive it.
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Received on Thu Oct 5 15:43:04 2006
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