Search found 8 matches

by Charlielamus
Wed Jul 30, 2025 9:12 am
Forum: Newbies
Topic: VIC 20 6502 clock conundrum
Replies: 4
Views: 1155

Re: VIC 20 6502 clock conundrum

Brilliant, thank you all.

Just to be specific about what I am mulling over, I am wondering how difficult it would be to make a breadboard VIC 20 compatible, still using the VIC chip but stripping out much of the I/O like the light pen and the disk drive stuff, and installing all of the possible ...
by Charlielamus
Tue Jul 29, 2025 5:06 pm
Forum: Newbies
Topic: VIC 20 6502 clock conundrum
Replies: 4
Views: 1155

VIC 20 6502 clock conundrum

Hi guys,

I am trying to understand the VIC 20 schematic as an intellectual exercise, and I have come across a bit I don't understand - can anybody help?

Screenshot 2025-07-29 175804.png

The bit in question is the clock pin. As it currently is, there is a clock feed taken off to go elsewhere ...
by Charlielamus
Sat Jun 14, 2025 9:32 pm
Forum: General Discussions
Topic: JECS-1 Computer build videos - comments invited!
Replies: 3
Views: 2135

Re: JECS-1 Computer build videos - comments invited!

Oops....

Presumably this is because I'm so marvelously competent at computing...
by Charlielamus
Sat Jun 14, 2025 6:41 pm
Forum: General Discussions
Topic: JECS-1 Computer build videos - comments invited!
Replies: 3
Views: 2135

Re: JECS-1 Computer build videos - comments invited!

For those who are interested, I have made a whole bunch more videos, which now gets so far as actually to involve a 6502 (actually a W65C02).

Enjoy, and let me know what you think...

https://youtube.com/playlist?list=PLrWC ... 6xFKGgezzB
by Charlielamus
Sun Jun 08, 2025 9:51 pm
Forum: General Discussions
Topic: JECS-1 Computer build videos - comments invited!
Replies: 3
Views: 2135

JECS-1 Computer build videos - comments invited!

This is exciting for me - if nobody else...

I have started making my videos about my breadboard 6502 computer, the JECS-1.

The purpose of this series of videos is to be a bit like the BE6502 series, but aimed at total and utter, never seen a wire or an IC, beginners. To that end it goes into much ...
by Charlielamus
Sat Jun 07, 2025 10:11 am
Forum: General Discussions
Topic: Video card question
Replies: 18
Views: 4600

Video card question

Hello!

I posted earlier that I am putting together a be6502-style breadboard computer, which is proceeding apace and I will be publishing my beginner mistakes and progress on YouTube shortly.

I'm thinking ahead now here. I'd love to be able to develop it into a machine which can output graphics ...
by Charlielamus
Wed Jun 04, 2025 12:33 pm
Forum: General Discussions
Topic: Statement of intent
Replies: 12
Views: 6674

Re: Statement of intent

Fortunately I have seen enough to order breadboards from BPS (via Mouser), I have a plan which starts very much in the same vein and the same speed as Ben Eater, and I have a large party pack of ceramic capacitors!

If you are interested, it's basically going to start out as a BE6502 minus the LCD ...
by Charlielamus
Wed Jun 04, 2025 7:40 am
Forum: General Discussions
Topic: Statement of intent
Replies: 12
Views: 6674

Statement of intent

Hello lovely people!

I am embarking on a project which some of you might be interested in, so I thought I would introduce myself and let you comment...

Basically, I have literally no background in computer science at all, and no knowledge of electronics beyond a few Velleman 555 timer kits ...