6502.org Forum Projects Code Documents Tools Forum
It is currently Sun Nov 24, 2024 8:50 am

View unanswered posts | View active topics


Board index » 6502.org Users Forum » Hardware

All times are UTC




Post new topic Reply to topic  Page 1 of 1
  [ 12 posts ] 
  Previous topic | Next topic 
Author Message
Martin_H
PostPosted: Mon Jul 15, 2019 12:09 pm 
Offline

Joined: Wed Jan 08, 2014 3:31 pm
Posts: 578
Ben Eater is a YouTuber who builds circuits out of TTL logic. His recent set of videos is building a VGA card from scratch. It outputs 64 colors in a 200x600 grid:

Part 1 https://youtu.be/l7rce6IQDWs
Part 2 https://youtu.be/uqY3FMuMuRo

He also did an excellent set of videos on CRC's in software and hardware that is also worth viewing.
Top
 Profile  
Reply with quote  
cbmeeks
PostPosted: Mon Jul 15, 2019 1:18 pm 
Offline
User avatar

Joined: Wed Aug 17, 2005 12:07 am
Posts: 1250
Location: Soddy-Daisy, TN USA
I love Ben Eater's videos. The last two on a VGA card were great as well.

_________________
Cat; the other white meat.
Top
 Profile  
Reply with quote  
Oneironaut
PostPosted: Wed Jul 17, 2019 2:52 am 
Offline
User avatar

Joined: Mon May 25, 2015 2:25 pm
Posts: 693
Location: Gillies, Ontario, Canada
Nice project!

Brad
Top
 Profile  
Reply with quote  
DerTrueForce
PostPosted: Wed Jul 17, 2019 9:37 am 
Offline

Joined: Sat Jun 04, 2016 10:22 pm
Posts: 483
Location: Australia
It might only be the output stage of a video card, but it's still useful to someone looking to do VGA output. The memory might become a bit of a pain, but it's still quite respectable for something built on a breadboard, and it illustrates just how simple the business end of an old-ish GPU really is, and how the spec can be used to produce somewhat non-standard resolutions.
Top
 Profile  
Reply with quote  
jmthompson
PostPosted: Sat Aug 03, 2019 12:08 am 
Offline

Joined: Sat Dec 30, 2017 3:19 pm
Posts: 116
Location: Detroit, Michigan, USA
i watched those videos a couple weeks ago, and then went through more of his catalog. His series on building a computer from discrete logic parts was fantastic, and his breadboard wiring puts mine to shame. In fact he is part of the reason why i just tore down my entire breadboard SBC build so that I can rewire it. :)
Top
 Profile  
Reply with quote  
barrym95838
PostPosted: Sat Aug 03, 2019 1:30 am 
Offline
User avatar

Joined: Sun Jun 30, 2013 10:26 pm
Posts: 1950
Location: Sacramento, CA, USA
I "like" how he manages to eyeball the 90° bends and lengths for his wires perfectly off-screen. He is either a savant of the highest order, or he's just showing us the result of hours of careful preparation. I don't have any evidence to disprove the former, but I'm definitely leaning toward the latter.

_________________
Got a kilobyte lying fallow in your 65xx's memory map? Sprinkle some VTL02C on it and see how it grows on you!

Mike B. (about me) (learning how to github)
Top
 Profile  
Reply with quote  
Oneironaut
PostPosted: Sat Aug 03, 2019 1:39 am 
Offline
User avatar

Joined: Mon May 25, 2015 2:25 pm
Posts: 693
Location: Gillies, Ontario, Canada
I vote for "hours of practice".
No, let me correct that...
"days or weeks of practice".

Brad

barrym95838 wrote:
I "like" how he manages to eyeball the 90° bends and lengths for his wires perfectly off-screen. He is either a savant of the highest order, or he's just showing us the result of hours of careful preparation. I don't have any evidence to disprove the former, but I'm definitely leaning toward the latter.
Top
 Profile  
Reply with quote  
Chromatix
PostPosted: Mon Aug 05, 2019 6:38 pm 
Offline

Joined: Mon May 21, 2018 8:09 pm
Posts: 1462
He's most likely prepared labelled trays full of bent wires of specific lengths. Then he only need to reach into the correct tray.
Top
 Profile  
Reply with quote  
Jeff_Birt
PostPosted: Mon Aug 05, 2019 8:08 pm 
Offline

Joined: Wed Jul 18, 2018 12:12 pm
Posts: 96
It is not that difficult to cut and bend wires. It just takes some practice, pliers and wire stripper.
Top
 Profile  
Reply with quote  
cbmeeks
PostPosted: Tue Aug 06, 2019 1:00 pm 
Offline
User avatar

Joined: Wed Aug 17, 2005 12:07 am
Posts: 1250
Location: Soddy-Daisy, TN USA
barrym95838 wrote:
I "like" how he manages to eyeball the 90° bends and lengths for his wires perfectly off-screen. He is either a savant of the highest order, or he's just showing us the result of hours of careful preparation. I don't have any evidence to disprove the former, but I'm definitely leaning toward the latter.


Either way, his devotion and production values are amazing.

_________________
Cat; the other white meat.
Top
 Profile  
Reply with quote  
thedrip
PostPosted: Sat Sep 14, 2019 9:21 pm 
Offline

Joined: Tue Oct 02, 2018 4:22 am
Posts: 48
Ben Eater's latest video is taking on a 6502 directly.

https://www.youtube.com/watch?v=LnzuMJLZRdU
Top
 Profile  
Reply with quote  
BigEd
PostPosted: Sun Sep 15, 2019 8:49 am 
Offline
User avatar

Joined: Thu Dec 11, 2008 1:28 pm
Posts: 10986
Location: England
Nice - I've started a new thread here.
Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 12 posts ] 

Board index » 6502.org Users Forum » Hardware

All times are UTC


Who is online

Users browsing this forum: No registered users and 49 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
6502.org is an ongoing project by Mike Naberezny and contributors.