<html><head></head><body>Ah, Mick and Brick! Back in the early 80s I took a bit slice class/lab. We built a lot of projects out of AMD29xx parts leading to a large breadboard implementing a12-bit (!) wide stack based processor. Custom instruction set supported by a simple assembler. Used it to control some DACs for scope xy graphics moving Towers of Hanoi discs around.<br>
<br>
I bought a broken Eventide H910 a while ago and saw it used the same AMD29xx parts. That could be a project to get working again...<br>
<br>
-Dave<br><br><div class="gmail_quote">On September 20, 2015 3:36:46 PM PDT, Vinicius Brazil <brazil.v@gmail.com> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div dir="ltr">Yes, Tim.<div>One of my biggest thrills hardware / firmware was working on a CPU 2901 of three phases (ran three programs simultaneously, one on each clock phase, 33MHz). beginning of the decade of 80. A total madness ...</div><div><br /></div><div>-Vinicius Brazil</div><div><a href="mailto:brazil.v@gmail.com">brazil.v@gmail.com</a></div></div><div class="gmail_extra"><br /><div class="gmail_quote">On Sun, Sep 20, 2015 at 6:29 PM, Tim Ressel <span dir="ltr"><<a href="mailto:timr@circuitabbey.com" target="_blank">timr@circuitabbey.com</a>></span> wrote:<br /><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Bit slice as in AND 2901? That is hard core. I own a copy of Mick
and Brick, but never made a bit slice.<br />
<br />
--tr<br />
<br />
<div>On 9/20/2015 2:17 PM, Vinicius Brazil
wrote:<br />
</div>
<blockquote type="cite">
<div dir="ltr">I started with the discrete bitslice cpus, after
the 8088/8086, 80188/186, 8051, and after National COP8 families
and Analog Devices ADSP21xx, and finally Microchip PICs &
dsPICs.<br />
<div><br />
</div>
<div>-Vinicius Brazil</div>
</div>
<div class="gmail_extra"><br />
<div class="gmail_quote">On Sun, Sep 20, 2015 at 5:54 PM, Tim
Ressel <span dir="ltr"><<a href="mailto:timr@circuitabbey.com" target="_blank">timr@circuitabbey.com</a>></span>
wrote:<br />
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">My first
proc was a COSMAC 1802, on a breadboard, with manual entry
switches, powered off a car battery, in a horse barn. (beat
that!)<br />
<br />
The 6809 came at my first engineering tech position. It was
a hand-wired proto board. Then 68000 and 68020, then Atmel
AVR. Recently DSPIC and STM32. These were all pre-made
boards.<br />
<br />
--TimR
<div>
<div><br />
<br />
<br />
On 9/19/2015 2:46 PM, Michael Zacherl wrote:<br />
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I got curious:<br />
did you people start with a typical dev-board of
PIC/AVR/STM32/... ?<br />
m.<br />
<br />
On 19.Sep 2015, at 21:28 , Richie Burnett <<a href="mailto:rburnett@richieburnett.co.uk" target="_blank"></a><a href="mailto:rburnett@richieburnett.co.uk" target="_blank">rburnett@richieburnett.co.uk</a>>
wrote:<br />
<br />
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
No probs here either.<br />
<br />
-Richie,<br />
<br />
---- Pete Hartman wrote ----<br />
<br />
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On Sat, Sep 19, 2015 at 4:43 AM, Gordonjcp <<a href="mailto:gordonjcp@gjcp.net" target="_blank"></a><a href="mailto:gordonjcp@gjcp.net" target="_blank">gordonjcp@gjcp.net</a>>
wrote:<br />
<br />
On Fri, Sep 18, 2015 at 10:40:37PM +0100, Tom
Wiltshire wrote:<br />
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I'd probably have to agree. TL07x op-amps would
be my most used IC. Not very glamorous, but
they're the glue that holds a million audio
circuits together.<br />
<br />
Aside from that, PIC uPs for digital, and
SSM2164/V2164 for analog.<br />
</blockquote>
I've never liked PICs. They're slow, expensive
and very hard to develop for, thanks to the sheer
lack of support - and last time I looked you had
to pay extra for surface-mount!<br />
<br />
I used AVR for a bit but I'm moving over to STM32
- ridiculously cheap and ridiculously fast.<br />
<br />
This must be a personal taste thing, as I have no
problems at all programming with PICs. The
documentation is very good, and there are lots of
examples to get over the most difficult part which
is how to set the various switches (in AVR world
the equivalent is the "fuses"). I've actually had
more frustration figuring out how to set fuses, to
be honest. I haven't played with the STM32s, I'll
certainly have to give that a try.<br />
</blockquote>
</blockquote>
--<br />
<a href="http://mz.klingt.org" rel="noreferrer" target="_blank">http://mz.klingt.org</a><span class=""><br />
<br />
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<br />
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<span><font color="#888888">
-- <br />
--Tim Ressel<br />
Circuit Abbey<br />
<a href="mailto:timr@circuitabbey.com" target="_blank">timr@circuitabbey.com</a></font></span><span class="">
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<br />
</font><pre cols="72"><font color="#888888">--
--Tim Ressel
Circuit Abbey
<a href="mailto:timr@circuitabbey.com" target="_blank">timr@circuitabbey.com</a></font></pre>
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