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Re: CFFA Logic version 1.3 CPLD has timing problem... v1.4 in testing
Rich wrote:
> To all CFFA users,
>
> As many of you know the current version of logic in the CPLD shipping
is
> v1.3. This was an update from v1.2 that allowed my card to work in
the
> Apple II+ and IIe. It also was suppose to improve overall timing
> margins.
>
> Recently, enough customers are having problems with larger CF cards
that
> I decided to investigate a little further. I bought a 256MB SanDisk
CF
> card and found that it didn't work at all. To my embarrassment it
> appears that in making v1.3 I messed up the timing in other areas.
> Specifically the timing of the latch operation that latches the high
> byte during a read cycle from the ATA device so the Apple can then
read
> the high byte. NOTE: v1.2 CPLD does not have this timing problem.
>
> So after more carefully looking at the timing, several key changes
have
> been made. These changes will become v1.4 CPLD. After more testing,
and
> hopefully some beta testing by others, I will let everyone know.
>
> The good news is that now all of the SanDisk and Lexar cards I have
all
> appear to work fine. The Lexar cards have never worked for me before.
>
> To get this update out to customers, I think I am going to offer two
> options,
>
> A) Send me your CPLD and I will reprogram it and send it back. No
> charge.
>
> B) I will send you a new CPLD at no charge, and you send back your
old
> one.
>
> The customer pays the shipping to get his chips to me and I will pay
the
> shipping to send the return chips.
You already emailed me about this, and if I remember correctly, we
hammered out an agreement. I appreciate you doing this for me. I can't
wait to get my GS up and running!
Ralph Glatt