RC2014 Pro autoboot to CP/M

[Michelle Lawson]

Is there, per chance, some switch or jumper config to allow for autobooting CP/M once power is applied? That is probably going to be what my Pro is going to be used for, so that would be an added bonus. Thanks

[Peter Onion]

If you are using RomWBW and have a RTC board you can configure it's NVRAM with device and slice numbers to boot from.

 

PeterO

 

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[Spencer Owen]

Sorry, but on the RC2014 Pro that isn't possible. You will always have to type X Y [space] on bootup from the "6" ROM image, or type "cpm" from the "88" ROM image.

Spencer

On 17/11/2025 19:39, Michelle Lawson wrote:

Is there, per chance, some switch or jumper config to allow for autobooting CP/M once power is applied? That is probably going to be what my Pro is going to be used for, so that would be an added bonus. Thanks --

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[Michelle Lawson]

Thanks Spencer. Not a problem, just wondering if it could.

[Alan Cox]

If you program up a new ROM with a few changes it is possible to do so 

Alan

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[Joao Miguel Duraes]

Michelle,

Again is on RomWBW, recompile a ROM and change the AUTO_CMD setting to achieve this.

Modify RCZ80_std.asm located in "RomWBW\Source\HBIOS\Config" subdirectory of the release.

 

Change to something like this:

#DEFINE AUTO_CMD "4.4" ; AUTO CMD WHEN BOOT_TIMEOUT IS ENABLED    <---- In my case, device 4, slice 4. Yours will be whatever you use.
#DEFINE DEFSERCFG SER_115200_8N1 | SER_RTS ; DEFAULT SERIAL CONFIGURATION
;
#INCLUDE "cfg_RCZ80.asm"
;
BOOT_TIMEOUT .SET 0 ; AUTO BOOT TIMEOUT IN SECONDS, -1 TO DISABLE, 0 FOR IMMEDIATE     <----- I've changed mine to be immediate.

Save this file, if on Windows do a build.cmd, if Linux/Mac do a make.

The resulting files will be in Binary - reprogram a rcz80_std.rom if you have a programmer, or using rcz80_std.rom (renamed to rcz80std.upd and uploaded to the RC2014) using "flash write rcz80std.upd /partial" if you do not have a programmer. Note that if you create a new ROM and your old is very old, you might need to recreate a new CF/SD or whatever storage you use.

Miguel

[Michelle Lawson]

Thanks  Miguel. I'll keep this around for some future use. A lot of priorities first; like getting the system built and working. And I haven't even looked into the RomWBW at all yet.

[Fernando Carolo]

Michelle, notice that the RC 2014 Pro does not run RomWBW. For that you need a system with 512kB RAM and 512kB ROM like the Zed or the Zed Pro.

Fernando Carolo

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[Michelle Lawson]

Well, you see, that is the beauty of the RC2014 architecture, similar to the S-100, I can change out the boards to conjure up whatever 'retro-spirit' I desire. And RC2014 is current designs, and a whole lot less expensive. I don't know the backstory how the RC2014 came about, but it seems to be a darn good idea.... Thanks 

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[Spencer Owen]

On 19/11/2025 17:32, Michelle Lawson wrote:
> I don't know the backstory how the RC2014 came about, but it seems to
> be a darn good idea....

Well, it all started in 2014, when I entered the Retro Challenge, and
built a Z80 computer on PCB. As it was one of the first times I'd done
PCB design, I decided to make it modular so that any errors could be
easily fixed per module rather than respinning the entire board.
https://rc2014.co.uk/653/retro-challenge-2014/

After that, I designed some more boards. Then people wanted to buy some.
So I started selling some. Then people wanted to buy more. So I made
more. Then other people wanted to make other boards for my design. And
somewhere along the way I quit my day job and have been selling RC2014
kits for a living ever since!

Spencer