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4 members, 30 messages added in the last 7 days
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  • Re: My Elf 00h Problem

    Hi Herb, Thanks for the additional explanation as to what was going on. I was aware of the very low power consumption of the the CDP1802 which is actually one

    kernel86 2 days ago
  • Re: My Elf 00h Problem

    Hi Josh, Pin 16 was connected to pin 40 and around to the various other places like the led. Apparently I just forgot to connect any of that to the power

    kernel86 2 days ago
  • Re: My Elf 00h Problem

    Ah: excellent explanation!

    bill_rowe@rogers.com 2 days ago
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Group Description

The RCA CDP1802 COSMAC microprocessor was the basis for several hobbyist computers in the mid 70s and early 80s. Join this group to discuss these old computers or share your 1802 experiences.

Visit cosmacelf.com for more on the history of 1802 microcomputing, data sheets, articles, photos, and more --- including a complete archive of Ipso Facto newsletters. You can find various emulators of ELF computers at elf-emulation.com (Unix/Windows), TinyELF.com (Mac OS X), and in the Files area of this group. There's even a simulator in Javascript that will run right in your browser.

Please note that due to some abuses of this forum, initial posts by new members will not appear until approved by a moderator. We regret that the actions of a few spammers have resulted in this inconvenience to the community.

Group Information

  • 859
  • Computers
  • Dec 30, 2001
  • English

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