Other 6809 Computers

There were other 6809-based single board computers that appeared around the time I was finishing the design of the ST-2900. Some were quite large and included video circuitry and other features. But the Peripheral Technology PT-69, which was only 50% larger than my CPU board, was probably the main competition for the ST-2900.

6809 Single Board Computers that could run FLEX and/or OS-9:

• 6809 CPU SBC from Chandler Microsystems
• PT-69 from Peripheral Technology
• DP-09 from Artisan Systems
• Compacta UNIBOARD from Digital Research Computers (of Texas)
• Microkey 4500 from Microkey Ltd.
• Microbox II from Micro Concepts
• Concept 09 from Micro Concepts
• SX-9 from Southeastern Micro Systems (p.37)
• QCB-9 from Logical Devices (p.43)
• FLEXI PLUS from The Computerist

If you have information on any other 6809-based computer that included at least 48KB RAM, one or more serial and parallel ports, and a floppy disk controller, on only 1 or 2 boards (that did not require a backplane/motherboard), and that was available before September 1984, please let me know, so I can add it to this page.

Other interesting 6809 CPU boards and computers in the past:

• 9639 from Creative Micro Systems, an EXORbus CPU card that ran OS-9 Level II
• GMX 6809 CPU III from Gimix, an SS-50 bus CPU card that ran OS-9 Level II
• MPU-1 from SwTPc, an SS-50 bus CPU card that ran UniFLEX Version II, had 64 task maps
• SBC/9 from Percom Data, a 6809 CPU board for the SS-50 bus
• Sophie from Innovative Design Delft, single board UNIX computer with 6809, 768KB DRAM, MMU, floppy controller, SCSI, DMA
• SuperPET (MicroMainFrame 9000) from Commodore, that had Fortran, Pascal, and APL language compilers
• CX-1 from Canon, an all-in-one unit including keyboard, CRT monitor, disk drives; ran the MCX operating system with BASIC
• MB-6890 from Hitachi, ran BASIC, had a light pen
• FM-8 from Fujitsu, with dual 6809 processors, optional bubble memory, ran BASIC
• 9000 from Positron in England, used MC6829 MMU, ran OS-9 Level II
• The Mill from Stellation Two, a 6809 add-in card for Apple 2, ran OS-9
• EXCEL-9 from Seikou, a 6809 add-in card for Apple 2, ran FLEX
• AP10 from IBS, an add-in card with 6809 and 64KB DRAM for Apple 2, ran FLEX and Pascal, schematics
• PI-6809, aka CoCo-PC, from Compusense, a 6809 add-in card for IBM PC, had 1MB RAM, 128KB EPROM, serial port, ran FLEX and CoCo OS-9
• Acorn 6809 CPU from Acorn, an alternative to the 6502 CPU card, ran FLEX
• EuroCUBE 6502/6809 (p.4(6), 9.8MB .pdf) from Control Universal Ltd.
• 6809 Microtan System from Tangerine, a multi-board 6809 computer on single height Eurocards
• SC09 from Arcom, a 6809 CPU board with STE bus
• EC-6809 (p.50, in French) on two single height Eurocards, 64KB DRAM, serial and parallel ports, floppy disk controller, 6845 for 24x80 text display, booted FLEX   [1] [2]
• EC ELETTRONICA MINIMICRO 6809 on a single height Eurocard
• Telidon graphics terminal from Norpak Ltd.
• bibliography of various boards (search for 6809, 68A09, 68B09)

Newer 6809/6309 boards:

• 6809-Tiny6 single board computer in only 6 square inches, from Sardis Technologies
• 6809 Single Board Computer by Jeff Tranter
• HD6309 SBC by tomcircuit
• 3 board 6809 expandable with N8VEM ECB boards
• ECB 6x0x-ATX-6U single board computer with MMU, supports 6809, 6802, or 6502, expandable with N8VEM ECB boards
• CPU09MM3 with a 4 MHz HD63C09 on a 3U Eurocard running uniFLEX, uses MMU with 64 process maps
• 6809 SBC by Brian L. Stuart
• 6809 SBC with 8MB and memory management
• Mini 6809 by Christle Engineering
• SiMon6809 6809 educational computer
• RedBoard two board 6809 computer
• Microbox 2K2 tiny FLEX based computer, with an 8MHz 6809 processor emulation in an Xmos XU216 SoC
• Liber809 replaces the 6502C in the Atari 800XL/1200XL/130XE with a 68B09E processor
• minimalist 6809 single board computer
• MC6809 Max, another minimalist 6809 single board computer
• 6809 card by Alex Freed, an improved clone of the Stellation Two The Mill for the Apple 2
• Matchbox CoCo, an emulated CoCo 3 in an FPGA, by Roger Taylor
• CoCoDEV by Dave Philipsen, an emulated 6809 @ 25MHz in an FPGA, 512KB SRAM, MMU, keyboard port, VGA video output, WiFi, SD card, RTC, etc.
• Multicomp FPGA board by Grant Searle that can emulate various processors, including the 6809
• Multicomp09 by Neil Crook, based on Grant Searle's Multicomp
• PC AT keyboard interface using a 6809, on a perfboard

Other:

• VTL-09 tiny "high level" language

"FLEX" was a trademark of Technical System Consultants (TSC).
"OS-9" is a registered trademark of Microware LP.

Use the Reload/Refresh button in your web browser (or Ctrl+F5 or Shift+Reload) to ensure you get the latest version of this page.
Last revised 2023-Jun-14 11:51 PDT.
Copyright 2019-2023 David C. Wiens.