| View previous topic :: View next topic |
| Author |
Message |
molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
|
 Posted: Tue Dec 02, 2014 4:06 pm Post subject: molka's MCS-8 i8008 test system |
 |
|
As I mentioned in MCS-80 test-board expansion topic , I’m working on a 8008 CPU tester too. Here are some details about its design:
First of all, I make the design based on Len Bayles’s project. See details here: http://www.8008chron.com/
He called his project as Intel 8008 Computer "Clock", but it was really the remake of the famous MARK-8 microcomputer. http://chc61.fgcu.edu/mark8.aspx
I like this design because it is modular and small due to PLD’s are used instead of tons of TTL gates.
My 8008 test system will be built up from a CPU panel and a control panel. They will be connected in piggy-back style. And will be powered trough a mini-USB or a 5V DC-jack connector.
- The CPU panel will contain a DC-DC converter (8008 requires -9V), a ZIF socket for CPU, address latch and system control logic.
- The control panel will contain an EPROM and IO functions similar to my MCS-80 test-board’s (4 push buttons and 8 LEDs) and restart button.
Hopefully, the 8008 test panels will be ready in a months.
In addition, I plan to implement other panels (memory, i/o, 7-segment led display, old style front panel) that are required for MARK-8 and real time clock functionality.
They will use the CPU panel of the test system and will be the replacement of test control panel. I call it µMark-8 system.
_________________
----------------------------------------------------------
My collection
http://www.x86-guide.net/molka/en/collection.html
Last edited by molka on Mon Jul 18, 2016 2:50 pm; edited 5 times in total |
|
| Back to top |
|
 |
Vegeta
Joined: 13 Apr 2013
Posts: 7049
|
| Posted: Tue Dec 02, 2014 4:10 pm Post subject: |
|
|
Awesome!
_________________
Wanted: 4 x VT-25-A tubes |
|
| Back to top |
|
|
smithy
Joined: 27 Apr 2008
Posts: 2906
Location: Sydney, Australia
|
| Posted: Thu Dec 04, 2014 1:39 am Post subject: |
|
|
Great work!
_________________
My former Intel collection:
www.smithschips.com.au |
|
| Back to top |
|
|
CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
|
|
| Back to top |
|
|
Mizutsuki Raki
Joined: 23 Mar 2014
Posts: 59
Location: Seoul, Korea
|
| Posted: Thu Dec 04, 2014 6:00 am Post subject: |
|
|
Very impressive  |
|
| Back to top |
|
|
lhf_james
Joined: 17 Oct 2008
Posts: 337
Location: Nanjing China
|
| Posted: Thu Dec 04, 2014 8:05 am Post subject: |
|
|
Greaat work!! Hope to see your design soon.
8008 is really hard work because there's no I/O controlling chips like 4289 for 4004 or 8228 for 8080.
I use LT1931 for my board to generate -10V. It requires few additional components and really reliable I think.
_________________
Tracing 4004 all over the world |
|
| Back to top |
|
|
molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
|
| Posted: Fri Feb 27, 2015 6:24 pm Post subject: |
|
|
Finally the prototypes of the i8008 test-system are done.
The base test system is built up from a CPU board and a test control panel.
It has the similar functionality as my MCS-80 test board.
The two-board test system will cost around $75-$80
The waiting list of two-board test system:
CPUShack SHIPPED
isa-d SHIPPED
wepwawet + µMark-8 SHIPPED
jrmunro + µMark-8 SHIPPED
Vegeta + µMark-8 SHIPPED
lither + µMark-8 SHIPPED
Qwerty + µMark-8 PAID
gekaufman + µMark-8 SHIPPED
Robev + µMark-8 SHIPPED
kpt_future + µMark-8 SHIPPED
OrBit SHIPPED
Chook + µMark-8 SHIPPED
Marcin SHIPPED
Alitoutou + µMark-8 SHIPPED
smithy + µMark-8 SHIPPED
Twinrocket + µMark-8 * 2 SHIPPED
elfox SHIPPED
xiaoyanxu SHIPPED
JustOne + µMark-8 * 2 READY, invoice sent
ch_v SHIPPED
Kosmonaut + µMark-8 READY, invoice sent
aduream SHIPPED
WFS2005 SHIPPED
_________________
----------------------------------------------------------
My collection
http://www.x86-guide.net/molka/en/collection.html
Last edited by molka on Thu Jul 16, 2015 1:21 am; edited 35 times in total |
|
| Back to top |
|
|
molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
|
| Posted: Fri Feb 27, 2015 6:34 pm Post subject: |
|
|
And some pictures about the remake of the famous MARK-8 system.
The µMark-8.
_________________
----------------------------------------------------------
My collection
http://www.x86-guide.net/molka/en/collection.html |
|
| Back to top |
|
|
molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
|
| Posted: Fri Feb 27, 2015 6:36 pm Post subject: |
|
|
The working µMark-8 in code debug and real time clock mode:
_________________
----------------------------------------------------------
My collection
http://www.x86-guide.net/molka/en/collection.html |
|
| Back to top |
|
|
yy2013
Joined: 12 Sep 2009
Posts: 739
Location: Nagoya, Japan
|
| Posted: Fri Feb 27, 2015 8:19 pm Post subject: |
|
|
| very nice board! |
|
| Back to top |
|
|
CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
|
|
| Back to top |
|
|
isa-d
Joined: 16 Aug 2006
Posts: 2984
Location: Italy
|
| Posted: Sat Feb 28, 2015 3:29 am Post subject: |
|
|
like other times count me for one set
thanks! |
|
| Back to top |
|
|
wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
|
| Posted: Sat Feb 28, 2015 3:37 am Post subject: |
|
|
wanna be on the subscribe list as well:-)
_________________
You may use the photos I have posted here under CC BY-NC-SA license. |
|
| Back to top |
|
|
jrmunro
Joined: 01 Feb 2003
Posts: 3149
Location: Vancouver, Canada
|
| Posted: Sat Feb 28, 2015 4:16 am Post subject: |
|
|
| Put me down for one also. |
|
| Back to top |
|
|
Vegeta
Joined: 13 Apr 2013
Posts: 7049
|
| Posted: Sat Feb 28, 2015 4:40 am Post subject: |
|
|
Great work! I want it too.
Perfect "Cube" µMark-8 
_________________
Wanted: 4 x VT-25-A tubes |
|
| Back to top |
|
|
|
![[ Hidden ]](https://cdn.cpu-world.com/forum/templates/CPUWorld/images/lang_english/icon_email.gif "[ Hidden ]"){kind=icon}
