26 Apr
2010
26 Apr
'10
6:53 a.m.
From: mcguire at neurotica.com
Subject: Re: i8355 from SDK-85 flakey
Date: Mon, 26 Apr 2010 01:08:11 -0400
To: cctalk at classiccmp.org; chrise at pobox.com
CC: cctech at classiccmp.org
On Apr 24, 2010, at 8:22 PM, Chris Elmquist wrote:
Hi
I don't have a data book handy but it seems that I recall that the
8355 can have a programmed inversion on one of the select lines.
There is also a difference between the 8755 and 8755A as I recall
as well.
Dwight
_________________________________________________________________
Hotmail has tools for the New Busy. Search, chat and e-mail from your inbox.
http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:…
I'm guessing that's probably unobtainium
so, failing that,
wondering if
there's a .HEX of the ROM image floating around so that I don't
have to
type it all in. If I have the bits, I can burn a 8755 that drops
into
the same location.
Hmm, weird. I tried to read the ROM contents from the 8355 in my
SDK-85, but my Data I/O UniSite, when configured for an 8755A,
complains of a device insertion error. Everything is set up
properly, and the UniSite is fine, I use it all the time. I've
checked the databooks and the 8355 and the 8755 should be completely
interchangeable with the obvious exception of programmability.