Re: [CAMM-3] Re: Butchering a 3000
- Hi Dan
The EPROM chips are in sockets. I simply pulled them out,
plugged them in to a Needham EMP-11 programmer and clicked
When I get time I will produce a much simpler EPROM that
uploads code via the serial port and then executes it. Once
I can flash the lights, read the buttons, move the motors
and interrogate it I will start to feel in control.
----- Original Message -----
From: "david876474" <danielbriggs@...>
Sent: Monday, January 17, 2011 9:21 PM
Subject: [CAMM-3] Re: Butchering a 3000
Good work; I'm sure they'll be useful to someone.
How did you get those?
Some reverse/clever hardware trickery? :)
All the best,
--- In CAMMemail@example.com, "Robin Hewitt" <robinh@...>
> Hi Dan
> EPROM's now in the FILES section.
> I've put them in binary format and then zipped them so
> really tiny.
> The PNC-300 memory map goes...
> 32k EPROM
> 16k EPROM
> 8k RAM
> 8k RAM
> ----- Original Message -----
> From: "david876474" <danielbriggs@...>
> To: <CAMMfirstname.lastname@example.org>
> Sent: Monday, January 17, 2011 8:54 PM
> Subject: [CAMM-3] Re: Butchering a 3000
> I've taken the view; "upload anything that is or could be
> helpful to an owner".
> So knock yourself out :)
> We're running a bit on the full side (only a few MB left -
> and there is no way to get any more).
> So if you need more space let me know and I'll take down
> some of the lager PDF's, re-compress and re-upload to free
> bit more space.
> --- In CAMMemail@example.com, "Robin Hewitt" <robinh@>
> > > I take it you've had a poke around in the software +
> > > manuals section?
> > Hi Dan
> > I even pillaged the photo's section for clues, the
> > underside
> > shots were very informative.
> > I suppose it might be considered naughty to put the
> > content
> > of the PNC-3000 EPROM's in the forum files section? OTOH
> > if
> > they weren't disassembled, data retention is not forever
> > and
> > it is nice to have a back up copy.
> > Whatever, they seem to have leapt on to my hard drive if
> > anybody wants them.
> > Robin
> > PS for the Z80 freaks :-
> > 0000: C3 88 69
> > 6988: 3E 38 D3 F3
> > So the timer is more important than ensuring the spindle
> > motor is off, to the point that the manual has to warn
> > us
> > that the motor may kick when you switch on. Hmmm,
> > perhaps
> > hanging the timer on the NMI line was a bad idea :o)
> I do embedded code for a multitude of processors. I just got away from the eeprom thing and use flash.Hi Roger
This is pre-flash, pre-EEPROM. this is EPROM. You have to shine UV in through the little quartz window to erase it.
Send me a mailing address and I will send you a chip. Have to hope the US Mail doesn't zap it with too many X-rays checking for weapons of mass destruction.
Send to robinh@... and put my surname, Hewitt somewhere in the text to bypass a very enthusiastic spam filter.
I've been rewriting my .dxf to .nc converter today and I have to say I do like this Microsoft Visual Studio compiler. I stitched together 120 lines and arcs in to a loop, tallied the included angles and it got the answer right to 14 decimal places. Bliss :o)