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Forum FAQ and Guidelines
#ThisGroup
This group has a FAQ and guidelines page of sorts on this group's Wiki at: *https://groups.io/g/cosmacelf/wiki/CosmacElfGroupFaq* Email users will find a link to this in the footer area of posted mess
This group has a FAQ and guidelines page of sorts on this group's Wiki at: *https://groups.io/g/cosmacelf/wiki/CosmacElfGroupFaq* Email users will find a link to this in the footer area of posted messages. To make this document more discoverable for those who use the groups.io web interface, this message is being posted as a "sticky" topic so that it appears at the top of the displayed list of messages.
By Dave Ruske
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Fake 1802 processors 21 messages
https://photos.app.goo.gl/bmdTPNQQ6tUh4F9d6 You can see which processor is fake. This is a typical cheap eBay part with the "standard" date code of 027. These parts fail self test in my ancient Fluke
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https://photos.app.goo.gl/bmdTPNQQ6tUh4F9d6 You can see which processor is fake. This is a typical cheap eBay part with the "standard" date code of 027. These parts fail self test in my ancient Fluke
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By Martin
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BGMicro has 268 1802ACE chips in stock 2 messages
#rca1802
Just looked at the BGMicro site and as of today (Saturday August 8, 2020) they have 268 1802ACE chips in stock. Unlike some listings on eBay, these are genuine RCA parts. I’ve purchased 3 1802 kits fr
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Just looked at the BGMicro site and as of today (Saturday August 8, 2020) they have 268 1802ACE chips in stock. Unlike some listings on eBay, these are genuine RCA parts. I’ve purchased 3 1802 kits fr
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By Ham Radio
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I/O Waveform Questions 5 messages
A couple questions, if I may, guys? I'm studying Mike Riley's I/O logic and his IDE/ATA interface and I'm trying to translate it to fit the constraints of the CLC (Configurable Logic Cell) logic avail
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A couple questions, if I may, guys? I'm studying Mike Riley's I/O logic and his IDE/ATA interface and I'm trying to translate it to fit the constraints of the CLC (Configurable Logic Cell) logic avail
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By Mike McLaren, K8LH
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Version 2 of Arduino Code for an 1802 Membership Card 4 messages
#Arduino
#MembershipCard
Hi Everyone, An improved version of the hardware and code for supporting an 1802 Membership Card with Arduino based hardware is available as the MCard1802ArduinoV2 project on GitHub. The second versio
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Hi Everyone, An improved version of the hardware and code for supporting an 1802 Membership Card with Arduino based hardware is available as the MCard1802ArduinoV2 project on GitHub. The second versio
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By Gaston Williams
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5 files uploaded
#file-notice
The following files have been uploaded to the Files area of the cosmacelf@groups.io group. /Studio IV - Tiny BASIC/am4kbas_2020.asm /Studio IV - Tiny BASIC/am4kbas 2020 NTSC.bin /Studio IV - Tiny BASI
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The following files have been uploaded to the Files area of the cosmacelf@groups.io group. /Studio IV - Tiny BASIC/am4kbas_2020.asm /Studio IV - Tiny BASIC/am4kbas 2020 NTSC.bin /Studio IV - Tiny BASI
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By
cosmacelf@groups.io Notification
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Studio IV - Tiny BASIC
#Emulator
Hi All, Recently I discovered that RCA developed a Tiny BASIC for the unreleased Studio IV. Thanks to some information I received from Ed (ekeefe8051), I was able to get it running in the Studio IV em
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Hi All, Recently I discovered that RCA developed a Tiny BASIC for the unreleased Studio IV. Thanks to some information I received from Ed (ekeefe8051), I was able to get it running in the Studio IV em
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By Marcel van Tongeren
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COMIX-35 - COMX-35 Clone 4 messages
Hello, This is not my project, but I thought it may interest some of you. https://github.com/schlae/comix-35 This is my COMX-35 project: http://www.comx35.com/avicomx35.html ED
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Hello, This is not my project, but I thought it may interest some of you. https://github.com/schlae/comix-35 This is my COMX-35 project: http://www.comx35.com/avicomx35.html ED
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By ekeefe8051
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Membership Card Super Monitor auto-baud maximum rates 3 messages
#MembershipCard
#Serial
#simulator
Today, I experimented with various 1802 CPU clock speeds using Chuck’s MCSMP20A monitor. Clock Maximum auto-baud rate on serial port (in bps) ====. ========= 1.00 MHz. 1200 1.79 MHz. 9600 2.00 MHz. 24
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Today, I experimented with various 1802 CPU clock speeds using Chuck’s MCSMP20A monitor. Clock Maximum auto-baud rate on serial port (in bps) ====. ========= 1.00 MHz. 1200 1.79 MHz. 9600 2.00 MHz. 24
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By Ham Radio
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Pico/Elf V2 78 messages
Hello All, In the past year I have had several people contact me about Pico/Elf V2 boards, and so I have given some thought to having some made. I do not know the current costs of having boards made,
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Hello All, In the past year I have had several people contact me about Pico/Elf V2 boards, and so I have given some thought to having some made. I do not know the current costs of having boards made,
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By Mike Riley
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New Cosmac Elf Recreation on PCB 6 messages
I just created an album showing 3pics of my latest Cosmac Elf system recreated on PCB. Thanks to Emilio Aoi for the PCB design. Please browse on the album if you have time.Thanks
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I just created an album showing 3pics of my latest Cosmac Elf system recreated on PCB. Thanks to Emilio Aoi for the PCB design. Please browse on the album if you have time.Thanks
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By Rizal Acob
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New Chip8 VIP Emulator
#CHIP8
#rca1802
#VIP
#ELF
Hello to all. FYI: I just uploaded my new Cosmac VIP Chip8 Emulator to GitHub. Please have a look. Suggestions and comments very welcome! Written entirely in C++ with Qt on Linux. Thanks for trying it
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Hello to all. FYI: I just uploaded my new Cosmac VIP Chip8 Emulator to GitHub. Please have a look. Suggestions and comments very welcome! Written entirely in C++ with Qt on Linux. Thanks for trying it
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By tomswan1802
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Pixie Video Simulator using a Teensy 3.2 7 messages
#Arduino
#Pixie
#MembershipCard
Hi, I was able to come up with a much better 1861 Pixie Video simulator using a Teensy 3.2 micro-processor instead of an Arduino Pro-Mini. The Teensy 3.2 is a much faster version of the Arduino that c
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Hi, I was able to come up with a much better 1861 Pixie Video simulator using a Teensy 3.2 micro-processor instead of an Arduino Pro-Mini. The Teensy 3.2 is a much faster version of the Arduino that c
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By Gaston Williams
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16 bit Subtraction 54 messages
Has anyone got a routine that does two byte (16 bit) integer subtraction? Unsigned. I can do 8bit subtractions easily. But I need to subtract two sets of two bytes, and I just can’t make my routine wo
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Has anyone got a routine that does two byte (16 bit) integer subtraction? Unsigned. I can do 8bit subtractions easily. But I need to subtract two sets of two bytes, and I just can’t make my routine wo
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By Craig Ledbetter
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Wiki for Group still says Yahoo 7 messages
Hello! And I am looking for information regarding Lee's Membership Card, and found the Wiki. The Wiki told me where to look for the card. And it also confirmed that it still thinks it is hosted on Yah
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Hello! And I am looking for information regarding Lee's Membership Card, and found the Wiki. The Wiki told me where to look for the card. And it also confirmed that it still thinks it is hosted on Yah
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By Gregg Levine
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Pico/Elf photos
After tearing my house apart I found the two Pico/Elf prototypes. In this photo the one on the left is the V1 and the one on the right is the V2. The main difference between the two boards is in the u
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After tearing my house apart I found the two Pico/Elf prototypes. In this photo the one on the left is the V1 and the one on the right is the V2. The main difference between the two boards is in the u
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By Mike Riley
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Sorry 10 messages
Well, I have been informed that I have created a problem here. So from this point forward anything concerning Pico/Elf V2 boards should be sent to my private email: mikehriley@.... Any updates or othe
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Well, I have been informed that I have created a problem here. So from this point forward anything concerning Pico/Elf V2 boards should be sent to my private email: mikehriley@.... Any updates or othe
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By Mike Riley
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MPM-293 Cassette Interface Schematic 7 messages
Hello, As promised, here is a link to a scan of the CDP18S652 cassette interface schematic from the MPM-293 manual. http://www.cosmacvip.com/MPM_293_Cassette_Interface.pdf ED
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Hello, As promised, here is a link to a scan of the CDP18S652 cassette interface schematic from the MPM-293 manual. http://www.cosmacvip.com/MPM_293_Cassette_Interface.pdf ED
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By ekeefe8051
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Selling RCA purple ceramic gold pin "pixie" chip and 1802 microprocessor on ebay 5 messages
if anyone is interested here's the links: https://www.ebay.com/itm/114322326306 https://www.ebay.com/itm/114322327240
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if anyone is interested here's the links: https://www.ebay.com/itm/114322326306 https://www.ebay.com/itm/114322327240
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By
dimitrifrazao@...
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Preliminary parts list
For those who were interested in a parts kit, I put together a quick parts list with digi-key part numbers and prices (some are Jameco). Note that this is a preliminary list, I am not 100% certain on
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For those who were interested in a parts kit, I put together a quick parts list with digi-key part numbers and prices (some are Jameco). Note that this is a preliminary list, I am not 100% certain on
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By Mike Riley
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