August 17, 2005

Coleco Adam Revision 57 EPROM dump by Guy Foster
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Here is a hex dump of the EPROMs in my Rev. 57 ADAM.

CHIP 1.BIN - U21 - $0000 - $1FFF - Alf #3 - Rev. 57 - Checksum: $85 $34
CHIP 2.BIN - U22 - $0000 - $3FFF - EOS 6  - Rev. 57 - Checksum: $08 $DD
CHIP 3.BIN - U8  - $0000 - $1FFF - Alf #1 - Rev. 57 - Checksum: $E3 $D5
CHIP 4.BIN - U20 - $0000 - $1FFF - Alf #2 - Rev. 57 - Checksum: $AE $6A

Brought to you by: www.montrealbbs.com/colecorevival

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[Coladam] Colecovision R57
Richard F. Drushel, Ph.D

I got the EPROM dumps, thanks.  From the photo, of great interest,
both the tape and master 6801s are actually 68701s, the reprogrammable
EPROM version!  I can seen the little round quartz windows underneath the
stickers...and the expensive gold-plated pins.  Also very interesting to
see the EOS ROM labelled "EOS 6"...which is what the ADAM Technical Manual
says the latest field version was, though they left the internal REV_NUM
byte at 5 "for compatibility with previous versions" or somesuch.  I would
also be interested to see a photo of the left side of the bottom board, since
that is where all the board revision numbers/dates and QC stickers are.


[Coladam] Colecovision R57
Geoff Oltmans

I wonder if the 68701s are protected or not... might be nice to be able 
to get the code off of those as well.

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In order to use these Revision 57 SmartWRITER eprom chip dumps, you need to merge them together into one 32K file, name it WP.ROM and place with your favorite ADAM emulator.