Lol... I just assumed that someone made parallel flash/ee with an spi/I2C
backdoor. Damm 40 pin devices with 35 NC pins. 


-----Original Message-----
From: owner-cbm-hackers@ling.gu.se [mailto:owner-cbm-hackers@ling.gu.se] On
Behalf Of Nicolas Welte
Sent: Saturday, May 02, 2009 10:04 AM
To: cbm-hackers@ling.gu.se
Subject: Re: FLASH ROM replacement

And I thougt my idea to use an approach similar to the Dallas stealth clock
chips is warped ;)

These chips use magic read patterns to write to the clock chip, that is
installed in a ROM socket. In the same way, a flash chip could be
programmed, but of course you had to build a stealth controller on your own
to interface between the flash chip and the ROM socket ...

Nicolas


Bil Herd wrote:
> Don't if it's practical, haven't had my coffee yet this morning, but in
the
> area of a pretty warped approach you could stick a zigbee transceiver on
> there.  No wires and you can sell a wireless programmer as an addon. They
> cost like $10 though, didn't know if that was too expensive. Include the
> antenna and a standard SPI type interface, I didn't look to see what kind
of
> flash you had.
>
> But if you had a three wire interface you could probably find a way to add
a
> three wire connector. :)
>
> Bil
>
> -----Original Message-----
> From: owner-cbm-hackers@ling.gu.se [mailto:owner-cbm-hackers@ling.gu.se]
On
> Behalf Of Jim Brain
> Sent: Saturday, May 02, 2009 7:26 AM
> To: cbm-hackers@ling.gu.se
> Subject: Re: FLASH ROM replacement
>
> Wolfgang Moser wrote:
>> Hi Jim,
>>
>> Jim Brain schrieb:
>>> While awaiting responses on a 2364 to 2764-27128 adapter PCB design,
>>> I designed a Flash ROM adapter for the 2364:
>>>
>>> http://www.jbrain.com/vicug/gallery/ROM-el
>>>
>>> Not sure if there is any interest, but I'm considering running a
>>> batch of these.  Suggestions for improvement are welcome.
>>>
>>> I'll probably whip up a 27128 and 27256 version as well.
>> nice variant to take a TSOP package for making a
>> true low profile adapter.
> Thanks.
>> How do you prgram or reprogram the Flash? Do
>> you have some plans to make In-System-Flashing
>> possible?
> RIght now, I plan to make an adapter for my programmer to program the
> unit.  But, if someone has an idea on how to make it work in circuit,
> I'm all ears.
>
>
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>
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