On 2/13/2021 3:13 AM, ED SHARPE via cctalk wrote:
oddly... I still have the prototype unit we built to plug into HP 2000
series processors and 21mx processors. it sits in my den...I was looking
at it the other day! and then your message popped up/ What are looking
for I am not sure I got all the prior emails on this.... Ed# In a
message dated 2/12/2021 4:01:25 PM US Mountain Standard Time,
[email protected] writes:
On 2/11/2021 6:02 PM, ED SHARPE via cctalk wrote:
Most challanging was to figure out to make it say naughty things... and once
you did how it almost caused havoc in AZ
Sounds like a story to add detail around...
But, I'm sad because no one either has one nor can help me test this
one. So, I cannot enjoy the thrill of making it say inappropriate stuff :-(
-------- Forwarded Message --------
Subject: Digitalker 54104 IC
Date: Tue, 9 Feb 2021 22:02:20 -0600
From: Jim Brain <[email protected]>
To: General Discussion: On-Topic and Off-Topic Posts
<[email protected]>
I suspect the answer to question #1 is no, but thought I would ask.
1) Anyone happen to have a known working Digitalker 54104 IC they are
looking to trade for some cash that does not involve me selling an arm
or a leg :-)?
2) Barring that, anyone have a known working Digitalker-based unit that
might be able to pop in a suspected non working Digitalker IC and test?
I have a Jameco (yep, the parts firm) manufactured Digitalker unit here
called the JE-520 that is my original unit. It suffered some ROM bit
rot long ago and was not working, but I acquired the ROMs a while back
to repair the unit.
Now, though, as I pull it out for another project, it seems to be
misbehaving. It's like "address bit 1" on the input commands is acting
up. For instance, word 48 is "zero", and 49 is "one", but zero will be
followed by "three" and then "zero" and then "three" as one sends values
48,49,50,51 to the unit. I'm working to confirm the bit 1 on the cable
to the PC is not bad, but initial efforts point to it being the IC.
Jim
--
Jim Brain
[email protected]
www.jbrain.com
--
Jim Brain
[email protected]
www.jbrain.com
