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Re: Problem with PocketTerm assembly

I used a small wire cutter to cut a corner off the PS/2 connector shield. See the following picture. small 2014-10-29 13.08.48.jpg By the way, on the Pocketerm that I have, there were no pull-up resistors on the input lines from the keyboard, which caused a problem with my 2003 Microsoft keyboard. I...
by jac_goudsmit
Oct Wed 29, 2014 3:32 pm
 
Forum: PockeTerm General Discussion
Topic: Problem with PocketTerm assembly
Replies: 1
Views: 6197

Propeddle running as Apple 1 clone

I'm happy to announce that my Propeddle project has reached an important milestone: I wrote a module that emulates the 6820 keyboard/display interface from the Apple 1, and succeeded in running Ken Wessen's Krusader ROM image on it (the same ROM as the Replica 1 if I understand correctly). I was als...
by jac_goudsmit
Jun Sun 01, 2014 12:58 pm
 
Forum: Venues, projects and off topic stuff - NO SPAM
Topic: Propeddle running as Apple 1 clone
Replies: 0
Views: 7548

Re: KIM-1 programming help needed

The quick-and-dirty answer is: as long as the baud rate is low, you may be able to get away with just testing if bit 7 of SAD ($1740) is set. Example: CHKSER LDA #$01 BIT $1740 BMI NORX JSR GETCH Got a start bit, call kernel to get byte ... Process received byte in A whichever way you want NORX ... ...
by jac_goudsmit
May Mon 12, 2014 7:43 pm
 
Forum: Micro-KIM General Discussion
Topic: KIM-1 programming help needed
Replies: 2
Views: 8531

Re: Happy new Micro-KIM

Could you possibly provide me with the EPROM image so that I can burn a new one myself? You can download the Kim-1 ROM image files from places such as http://www.commodore.ca/manuals/funet/cbm/src/kim-1/index-t.html . The original KIM-1 had two 1KB EPROMs so there are two images: 6530-002 and 6530-...
by jac_goudsmit
Apr Fri 25, 2014 6:02 pm
 
Forum: Micro-KIM General Discussion
Topic: Happy new Micro-KIM
Replies: 3
Views: 10526

Vince on video at Hackaday

Hackaday featured a (way too short) video of Vince at VCF East today. I wish I could have been there...

http://hackaday.com/2014/04/07/vcf-east ... -computers

===Jac
by jac_goudsmit
Apr Mon 07, 2014 4:02 pm
 
Forum: Venues, projects and off topic stuff - NO SPAM
Topic: Vince on video at Hackaday
Replies: 0
Views: 7074

Re: Replica 1Ten #10 in da house!

2014-01-31 20.27.47.jpg ^ Of course the first Basic program is Hello World We tried to download some other Basic programs from the CD-ROM but were unsuccessful: every once in a while, a character doesn't transfer correctly. It's probably a matter of tweaking the settings on TeraTerm (extra delay on...
by jac_goudsmit
Feb Sat 01, 2014 1:50 am
 
Forum: replica 1 General Discussion
Topic: Replica 1Ten #10 in da house!
Replies: 2
Views: 8905

Re: Replica 1Ten #10 in da house!

2014-01-31 19.52.10.jpg ^ I made a small modification: I put some female headers on the circuit board and plugged the Sparkfun USB interface into it. That way I can fix it if something is wrong, or use the USB interface for something else (the pins are breadboard compatible) 2014-01-31 20.03.52.jpg...
by jac_goudsmit
Feb Sat 01, 2014 1:43 am
 
Forum: replica 1 General Discussion
Topic: Replica 1Ten #10 in da house!
Replies: 2
Views: 8905

Replica 1Ten #10 in da house!

Hi guys, I received my Replica 1Ten in the mail a week ago, and though my fingers have been itching to put it together and play around with it, I didn't have time until today. Just like with the MicroKim, I had my stepson do most of the soldering. He's a Computer Science student, and a beginner at s...
by jac_goudsmit
Feb Sat 01, 2014 1:33 am
 
Forum: replica 1 General Discussion
Topic: Replica 1Ten #10 in da house!
Replies: 2
Views: 8905

Re: Overclocking

Hello, I have yet to get my µKIM yet but I am already looking into overclocking it to 2MHz, would it be possible to do? I would say it's probably possible but not trivial. You may have to replace the 6502 by a 6502A; the "A" means it's rated for 2MHz instead of 1MHz. The RAM is probably f...
by jac_goudsmit
Dec Wed 11, 2013 3:45 pm
 
Forum: Micro-KIM General Discussion
Topic: Overclocking
Replies: 1
Views: 8142

Re: replica 1 tenth anniversary edition

Hey Vince, When I ordered my Replica 1TEN, I took a close look at the pictures of the PCB and it looks like it has a lot of similarities with the OSI project (I see a 74LS00 and a 74LS138 as glue logic). If that's true, I was wondering if the 27C128 EPROM was strictly necessary? Just curious... ===Jac
by jac_goudsmit
Dec Sun 01, 2013 3:28 pm
 
Forum: replica 1 General Discussion
Topic: replica 1 tenth anniversary edition
Replies: 18
Views: 51554

Re: replica 1 tenth anniversary edition

Any news about this? The article says pre-orders start today but I don't see any links anywhere...

EDIT: Never mind I found it. http://www.brielcomputers.com/wordpress/?p=1064

===Jac
by jac_goudsmit
Nov Thu 28, 2013 8:43 pm
 
Forum: replica 1 General Discussion
Topic: replica 1 tenth anniversary edition
Replies: 18
Views: 51554

Re: 10 Years ago

Congratulations Vince, and happy anniversary :-) I don't have a Replica 1 but I do have the MicroKim (with expansion RAM) and the Pocketerm. As I mentioned elsewhere, I soldered the MicroKim together with my stepson who had never soldered anything before, and it worked the first time. I hope you can...
by jac_goudsmit
Nov Mon 04, 2013 2:44 am
 
Forum: Venues, projects and off topic stuff - NO SPAM
Topic: 10 Years ago
Replies: 6
Views: 21774

And here's what the competitors are doing :-)

I'm a big fan of Vince and I love the products at BrielComputers.com, but I'm noticing that lately there's been some noise in the world of retro-computing about Mike Douglas' Altair Clone . It costs a lot more than the one from Briel Computers ($621, which is the same price as the original Altair wh...
by jac_goudsmit
Jun Tue 25, 2013 3:31 pm
 
Forum: Altair 8800 Micro
Topic: And here's what the competitors are doing :-)
Replies: 2
Views: 6369

Re: Guess my next project

Big thanks to Jac who really helped with this project. I think he has more fun than me making these computers :) Thanks for the shout-out, Vince :-) It has been an honor and a pleasure to work with you on this project, but the only reason you may have less fun than me is because you're doing all th...
by jac_goudsmit
Apr Mon 01, 2013 2:19 pm
 
Forum: Superboard III General Discussion
Topic: The new Superboard III
Replies: 14
Views: 34263

Re: Guess my next project

Make sure you put a jumper to disable that '244 so the hardware keyboard doesn't interfere with the PS/2 keyboard ;-)

===Jac
by jac_goudsmit
Mar Thu 28, 2013 10:28 pm
 
Forum: Superboard III General Discussion
Topic: The new Superboard III
Replies: 14
Views: 34263
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