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RC2014-Z80
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Derek Cooper
, …
Wayne Warthen
17
Mar 19
HD64180RCP10X and Z8S18033VSG clock speeds
The Crystal is 18.432mhz, I may still have some of the 9mhz but since the chip always divides by 2 I
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HD64180RCP10X and Z8S18033VSG clock speeds
The Crystal is 18.432mhz, I may still have some of the 9mhz but since the chip always divides by 2 I
Mar 19
Massimo
Mar 18
Clarification on using I2C with RomWBW with a SC608 card
I have an SC608 card and I was looking on how to use it under RomWBW CP/M 2.2, in particular on how
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Clarification on using I2C with RomWBW with a SC608 card
I have an SC608 card and I was looking on how to use it under RomWBW CP/M 2.2, in particular on how
Mar 18
Christer Karlsson
, …
Tom Pipes
19
Mar 17
Versaterm
Can confirm this did work for me as well! Thanks for asking about an issue I didn't know I had
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Versaterm
Can confirm this did work for me as well! Thanks for asking about an issue I didn't know I had
Mar 17
m...@scifidan.com
,
Ed Silky
2
Mar 13
new member
Welcome. Glad to meet you. -Ed On Fri, Mar 13, 2026 at 4:56 PM <m...@scifidan.com> wrote: Hello
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new member
Welcome. Glad to meet you. -Ed On Fri, Mar 13, 2026 at 4:56 PM <m...@scifidan.com> wrote: Hello
Mar 13
ITSecurity Guy
, …
Steve Clarke
4
Mar 8
Sc126 and KERMIT... seems to be difficult
Actually, I made a mistake. I can run up to 38400 baud with the standard 18Mhz cpu clock. On Sunday,
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Sc126 and KERMIT... seems to be difficult
Actually, I made a mistake. I can run up to 38400 baud with the standard 18Mhz cpu clock. On Sunday,
Mar 8
Martin Giese
, …
Fernando Carolo
8
Mar 8
YM2149 mixer with pan pots
Glad y'all like it! Fernando, I didn't know about those one-time-programmable oscillators.
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YM2149 mixer with pan pots
Glad y'all like it! Fernando, I didn't know about those one-time-programmable oscillators.
Mar 8
Massimo
,
Martin Giese
2
Mar 8
DIY alternative to Quazar ZXTT module for Ed Brindley’s YM2149 Sound Card (rev. 5)
Nice little hack! I like that you sawed off a corner of your perf board to make it RC2014 compatible
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DIY alternative to Quazar ZXTT module for Ed Brindley’s YM2149 Sound Card (rev. 5)
Nice little hack! I like that you sawed off a corner of your perf board to make it RC2014 compatible
Mar 8
James Harland
Mar 7
Orton 3C cycle switch troubleshooting
Hi everyone, I have been happily using my Orton 3C for almost 2 months now, and I suppose using it
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Orton 3C cycle switch troubleshooting
Hi everyone, I have been happily using my Orton 3C for almost 2 months now, and I suppose using it
Mar 7
James Harland
, …
Jon Jones
10
Mar 7
Assembler recommendations for Orton 3C
Spasm has *just* gained support for creating Intel Hex files suitable for use with SCM. J > On 6
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Assembler recommendations for Orton 3C
Spasm has *just* gained support for creating Intel Hex files suitable for use with SCM. J > On 6
Mar 7
Steve Cousins
, …
Phil Pin
5
Mar 6
Input / output address map
Works well with Libreoffice Calc (25.8.5). However, I replaced the checkbox column with just a 0 or 1
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Input / output address map
Works well with Libreoffice Calc (25.8.5). However, I replaced the checkbox column with just a 0 or 1
Mar 6
James Harland
, …
Jon Jones
7
Mar 6
Video card for RC 2014
Thanks Jon. Is that for graphics, or just for text? Fwiw, I got pacman working, and snake too. I'
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Video card for RC 2014
Thanks Jon. Is that for graphics, or just for text? Fwiw, I got pacman working, and snake too. I'
Mar 6
James Harland
,
Spencer
7
Mar 1
Using PUTCH on the Orton 3C
Hi Spencer, I see, thanks! Could you possibly go through step by step what I have to do to get a
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Using PUTCH on the Orton 3C
Hi Spencer, I see, thanks! Could you possibly go through step by step what I have to do to get a
Mar 1
Spencer Owen
, …
James Harland
9
Mar 1
Kill The Bit - Orton 3C
Have fun! I'm not sure if I've noted it anywhere, but you have to flick the switch up and
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Kill The Bit - Orton 3C
Have fun! I'm not sure if I've noted it anywhere, but you have to flick the switch up and
Mar 1
Thomas Crabtree
,
Spencer
9
Mar 1
RC2014 Pro - Powered on but can't boot to CP/M
Excellent news Thomas! Thanks for letting us know. Cheers Spencer On Tuesday, 24 February 2026 at 15:
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RC2014 Pro - Powered on but can't boot to CP/M
Excellent news Thomas! Thanks for letting us know. Cheers Spencer On Tuesday, 24 February 2026 at 15:
Mar 1
Grahame Benson
, …
Spencer
9
Mar 1
Compact Flash board v1
Hi Grahame, The CP/M 2.1 image I used on 64mb cards was the same one that I linked to, but with only
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Compact Flash board v1
Hi Grahame, The CP/M 2.1 image I used on 64mb cards was the same one that I linked to, but with only
Mar 1
James Harland
,
Phillip Stevens
2
Feb 28
How to add my RC2014 github to this page?
James, Did a quick search on GitHub with the term “rc2014 language:basic”, and I found nearly 20
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How to add my RC2014 github to this page?
James, Did a quick search on GitHub with the term “rc2014 language:basic”, and I found nearly 20
Feb 28
James Harland
4
Feb 26
New BASIC programs
I've made the promised arbitrary pseudo-random number generator for the Orton 3C with input-
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New BASIC programs
I've made the promised arbitrary pseudo-random number generator for the Orton 3C with input-
Feb 26
Martin Giese
, …
Ed Silky
8
Feb 25
Vector Graphics?
Thanks Phil. A friend had one, so I played it a fair amount, but he wouldn't let me take it apart
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Vector Graphics?
Thanks Phil. A friend had one, so I played it a fair amount, but he wouldn't let me take it apart
Feb 25
Phillip Stevens
, …
Bill Shen
67
Feb 22
TURBO - Z80 CPU Module
DS1086 uses its internal EEPROM to store frequency data. I don't know how many times the EEPROM
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TURBO - Z80 CPU Module
DS1086 uses its internal EEPROM to store frequency data. I don't know how many times the EEPROM
Feb 22
Timothy Blanks
, …
Spencer
8
Feb 22
RC2014 & SID-Ulator Sound Module
Hi Tim, Thanks for the kind words :-) Thanks for fixing the BAD INT issue too. I haven't had a
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RC2014 & SID-Ulator Sound Module
Hi Tim, Thanks for the kind words :-) Thanks for fixing the BAD INT issue too. I haven't had a
Feb 22
James Harland
, …
Spencer
27
Feb 22
Orton 3C input/output troubleshooting
Hi James, That is great news, I'm glad you managed to fix it, and thanks for letting us know.
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Orton 3C input/output troubleshooting
Hi James, That is great news, I'm glad you managed to fix it, and thanks for letting us know.
Feb 22
James Harland
, …
Peter Onion
29
Feb 21
Not able to read Orton ROM
Hi Peter, Thanks for the clear explanation. I now also understand why the Z80 can only address 64k
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Not able to read Orton ROM
Hi Peter, Thanks for the clear explanation. I now also understand why the Z80 can only address 64k
Feb 21
Neil
,
Spencer
2
Feb 17
Help with RC2014 Micro
Hi Neil, Looking good so far! The instructions assume the standard kit which doesn't include the
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Help with RC2014 Micro
Hi Neil, Looking good so far! The instructions assume the standard kit which doesn't include the
Feb 17
Grahame Benson
, …
dean.ne...@gmail.com
7
Feb 17
eZ80
Thanks Mx Argent - glad to hear it working well for you. I have so many plans for software support
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eZ80
Thanks Mx Argent - glad to hear it working well for you. I have so many plans for software support
Feb 17
Christer Karlsson
, …
Spencer
9
Feb 15
Help with Tynemouth 68B50 serial port v1.1
All well, all is working again. Do not know why, or what went wrong. I was measuring continuity and
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Help with Tynemouth 68B50 serial port v1.1
All well, all is working again. Do not know why, or what went wrong. I was measuring continuity and
Feb 15
aaw...@gmail.com
, …
Tadeusz Pycio
5
Feb 12
MPM2 z80 emulator
It is difficult to develop this operating system within RC2014 because it lacks the required 50/60Hz
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MPM2 z80 emulator
It is difficult to develop this operating system within RC2014 because it lacks the required 50/60Hz
Feb 12
Michelle Lawson
, …
7alken
8
Feb 11
CF Card formatting
this is also quite cool document (1993), again PCMCIA, mostly Flash oriented, no wear leveling on
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CF Card formatting
this is also quite cool document (1993), again PCMCIA, mostly Flash oriented, no wear leveling on
Feb 11
Paul Bigwood
2
Feb 8
Re: [rc2014-z80] Digest for rc2014-z80@googlegroups.com - 6 updates in 2 topics
Sent from my iPad On 7 Feb 2026, at 18:25, rc201...@googlegroups.com wrote: rc2014-z80@
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Re: [rc2014-z80] Digest for rc2014-z80@googlegroups.com - 6 updates in 2 topics
Sent from my iPad On 7 Feb 2026, at 18:25, rc201...@googlegroups.com wrote: rc2014-z80@
Feb 8
Zeb
,
Steve Cousins
5
Feb 5
Commands to send bytes to SIO port B
well ... it works now ;-) Le jeudi 5 février 2026 à 19:40:15 UTC+1, Zeb a écrit : I've got
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Commands to send bytes to SIO port B
well ... it works now ;-) Le jeudi 5 février 2026 à 19:40:15 UTC+1, Zeb a écrit : I've got
Feb 5
Spencer
,
Andrew Lindsay
2
Feb 5
RIP Ken Boak
Just seen this. So sad. I've known Ken for years, again from the early Nanode days, meetups in
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RIP Ken Boak
Just seen this. So sad. I've known Ken for years, again from the early Nanode days, meetups in
Feb 5