element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • About Us
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Single-Board Computers
  • Products
  • Dev Tools
  • Single-Board Computers
  • More
  • Cancel
Single-Board Computers
Forum 6502 Video Out
  • Blog
  • Forum
  • Documents
  • Files
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Join Single-Board Computers to participate - click to join for free!
Actions
  • Share
  • More
  • Cancel
Forum Thread Details
  • State Verified Answer
  • Replies 26 replies
  • Answers 18 answers
  • Subscribers 65 subscribers
  • Views 5501 views
  • Users 0 members are here
  • composite
  • mos
  • 6502
  • video out
Related

6502 Video Out

nick123
nick123 over 9 years ago

Hello,

I've been working on a 6502 SBC recently, and I wanted it to output to a composite video signal. I looked around the internet and didn't find much of anything. Anyone know a way I can do this?

  • Sign in to reply
  • Cancel

Top Replies

  • bwelsby
    bwelsby over 9 years ago in reply to nick123 +5 suggested
    Some info of what used to be here https://en.m.wikipedia.org/wiki/Video_display_controller The video subsystems of these oldies used to make up the bulk of the electronics in those machines and the display…
  • DAB
    DAB over 9 years ago +4 suggested
    Hi Nick, As I recall, the Commodore PET that I have used a batch of memory to hold the video data. All you need is a couple of counter chips to run through the addresses of the RAM chips. You take the…
  • michaelkellett
    michaelkellett over 9 years ago +4 suggested
    If you want to remain "classic" you would need to use a video controller MC6845 or perhaps 6569: MOS 6569R3 C64 VIC-II PAL chip, Mutant Caterpillar Games Ltd Retro Store Google for the 6845 data sheet…
Parents
  • technos
    0 technos over 8 years ago

    Even though this has been answered, I wanted to add a better answer that will lead the parent (or others) in the right direction.

     

    The definitive must read books on how to generate a composite video out from a 6502 (or any microprocessor from that era or since) are "The TV Typewriter cookbook", "The Cheap Video Cookbook", and "The Son of Cheap Video Cookbook".

    They are all written by the hacker emeritus before there were hackers Don Lancaster. I am sure by understanding the methods there that they can be transposed to modern day designs (if you search for implementing a composite video output).

     

    Where other posters in this thread have said "it can't be done" "because timings" the fact is that Don Lancaster showed that it could indeed be done with a few amazing and simple hacks.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Reject Answer
    • Cancel
  • dougw
    0 dougw over 8 years ago in reply to technos

    Good point Phil - I am sure I still have "The Cheap Video Cookbook".....somewhere.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Reject Answer
    • Cancel
Reply
  • dougw
    0 dougw over 8 years ago in reply to technos

    Good point Phil - I am sure I still have "The Cheap Video Cookbook".....somewhere.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Reject Answer
    • Cancel
Children
  • lagip
    0 lagip over 5 years ago in reply to dougw

    I have all Don’s books in dead trees format from my youth .. I cut my teeth on the Apple 2 ...

    Don is giving them away free here in pdf format

     

    https://tinaja.com/ebksamp1.shtml

     

    Enjoy

     

    Lagi

    • Cancel
    • Vote Up +2 Vote Down
    • Sign in to reply
    • Verify Answer
    • Reject Answer
    • Cancel
  • michaelkellett
    0 michaelkellett over 5 years ago in reply to lagip

    Good link Lagi !

    Thanks.

     

    MK

    • Cancel
    • Vote Up +2 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
  • dougw
    0 dougw over 5 years ago in reply to lagip

    Great link.

    I also have a couple of Don's books from way back before the Internet when I was trying to build a low cost display....

    image

    • Cancel
    • Vote Up +2 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
  • clem57
    0 clem57 over 5 years ago in reply to dougw

    cat looks bored...

    • Cancel
    • Vote Up +1 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2025 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube