Tag: cpm

Adds up to the Z80's full 64K addressable RAM with selectable start address.

Current kits are offered with 32K or 64K and Standard or Enhanced Bus headers. The listing is for the memory module only; a CP/M setup also needs the documented Pageable ROM and other core modules.

Adds banked memory for running RomWBW, CP/M, and Z-System.

The current kit is the memory configuration used by RC2014 Zed and Zed Pro. It replaces both separate ROM and RAM modules in a Classic II or Pro; a Mini can use it only after its onboard ROM and RAM chips are removed.

Adds an 8 MHz-or-faster Z80, 64 KB of onboard memory, and a beta CP/M environment through a 1090XL expansion slot.

The page reported one card in stock on 2026-07-27. CP/M customization and utilities remain late beta. The card is sold with or without a Z80; a user-supplied CPU must be rated for at least 8 MHz. The pictured 80-column RPP card is optional and not included. Double-density disk use also requires supporting drive hardware. The exact page names only the 1090XL, so confirm 1091XL compatibility before using it in that implementation.

Adds solid-state CompactFlash storage for CP/M or RomWBW configurations.

The fine-pitch CompactFlash socket can be supplied loose with an optional stencil or pre-soldered and tested. Standard RC2014 BASIC cannot access this storage. CP/M requires the documented Pageable ROM and 64K RAM configuration, while RomWBW uses a 512K ROM 512K RAM setup.

Adds a two-drive floppy controller and DS1302 real-time clock to RC2014 and RCBus systems.

Tindie listed the complete Flock V2 kit without an out-of-stock notice on 2026-07-25, and open build files remain available. The CR2032 battery and optional 300 Kbit/s parts are not included. The drive-power output is unfused; avoid overloading or shorting it.

Adds a Microsoft SoftCard-compatible Z80 processor for running CP/M, with an optional turbo mode.

The GGLABS Tindie store was taking a break on 2026-07-24, so no current order could be placed. Turbo mode requires a CMOS 65C02 or 65C816 host; systems with an NMOS 6502 must use normal mode.

Runs PCPI Applicard-compatible CP/M software on a dedicated 20 MHz Z80 with 512K of onboard RAM.

The GGLABS Tindie store was taking a break on 2026-07-24, so no current order could be placed. This card is PCPI Applicard-compatible, not Microsoft SoftCard-compatible; choose CP/M software and disk images for the Applicard environment.

Adds flexible ROM sizing and the ability to page ROM out for a full 64K of RAM.

Current options include a standard or ZIF socket and optional blank or programmed PROMs. The base kit excludes a ROM. A ZIF release bar can foul a nearby logic chip unless the chip is lowered, the socket is reversed, or the bar is shortened. 28C EEPROM support is described as untested.

Replaces the RC2014 CompactFlash storage module with microSD for CP/M 2.2.

Current kits are offered for Standard or Enhanced Bus, with the surface-mount microSD socket loose or preinstalled. The Standard Bus version needs the supplied jumper lead to connect /WAIT to the CPU module. The vendor page says RomWBW support is forthcoming, so this record only claims CP/M 2.2 support.

Combines a working Z80 or Z180 computer with RC2014-compatible expansion sockets on one buildable motherboard.

The official pages listed complete-kit and bare-PCB suppliers on 2026-07-27, but no assembled and tested option. Exact inventory varies by model and supplier; the Tindie seller was temporarily on a break when checked. Each board still needs assembly plus the documented power, terminal, and storage accessories.

Adds four switchable 32K banks of Flash ROM to an RC2014 system.

The project page provides firmware, a schematic, PCB files, Gerbers, and supplier links. CP/M use requires the separate SC150 Paged RAM Module. Leave the Flash write-protect jumper in its normal read-only position unless deliberately programming the ROM.

Combines 128K of Flash ROM and 128K of paged RAM for RC2014 systems, including CP/M configurations.

The project page provides firmware, a schematic, PCB files, Gerbers, and supplier links. A later SC707 design also exists, but SC152 remains documented and buildable. Keep the Flash write-protect jumper in its normal read-only position except when programming it.

Builds complete RomWBW and CP/M computers from matched 40-pin or 80-pin RCBus backplanes and modules.

The official pages listed complete-kit and bare-PCB suppliers on 2026-07-27, but no assembled and tested option. Exact inventory varies by model and supplier. A suitable power supply, storage card, USB serial adapter, terminal computer, and assembly tools may be required as specified for each model.

Adds 128K of Flash ROM and 128K of paged RAM for a CP/M-capable Z80 system.

The project provides Small Computer Monitor S8 firmware, a schematic, Gerbers, PCB design files, and kit or bare-PCB suppliers; an assembled version is not offered. Observe the Flash write-protect jumper and avoid function conflicts with other system memory modules.

Combines a Z80, paged RAM and Flash, clock, reset, and serial terminal on one RCBus module.

The project provides firmware, a schematic, Gerbers, PCB design files, and kit or bare-PCB suppliers; an assembled version is not offered. SC708 has no automatic power-on reset, so press its reset button after applying power. Avoid duplicate CPU, memory, clock, reset, or serial functions when adding it to a modular system.

Adds 512K of Flash ROM and 512K of banked RAM for RomWBW and CP/M.

The project supplies RomWBW and Small Computer Monitor firmware, a schematic, Gerbers, PCB design files, and links for kits and bare PCBs; an assembled version is not offered. It is intended for the SC706 Z80 CPU module and is not compatible with the SC730 CPU plus MMU module. JP1 controls Flash write protection.

Adds CompactFlash storage to RC2014 and RCBus systems at I/O ports 0x10 through 0x17.

Both designs have schematics, Gerbers, PCB files, and kit or bare-PCB paths; assembled versions are not offered. Plain CP/M 2.2 can address the first 128MB and RomWBW up to 2GB. The maker recommends avoiding high-capacity, high-speed cards and documents a critical 5 V power issue with some visually identical CompactFlash adapters.

Combines a Z80 processor with a 20-bit MMU for SC721's 1 MB linear memory.

The project provides firmware, a schematic, Gerbers, PCB design files, and kit or bare-PCB suppliers; an assembled version is not offered. Pair it with SC721 linear memory and do not combine it with the bank-switching SC707 or SC714 memory modules.

Combines a Z80 CPU, 512 KiB Flash, 512 KiB SRAM, clock, reset, and RomWBW paging on one modular card.

Tindie listed the complete Z80-512K kit without an out-of-stock notice on 2026-07-25; complete open files also remain available for both designs. The Z80-CPM store page failed extraction, so no stock claim is made for that variant. Z80-512K builders using its supervisor without a backup battery must short the battery connector as documented.

Business-card-sized RC2014-compatible Z80 computer with 1 MiB of memory and integrated serial and parallel I/O.

This is a surface-mount self-assembly project with KiCad, Gerber, CPLD, and firmware documentation. Programming its MAX7000AE CPLD requires the older Quartus II 13.0sp1 toolchain because newer Quartus versions do not support the device.