Dave Henry
Nanocomp6809V7.pdfKiCad Schematic for Version 7.0 of the Nanocomp. Replaced 6 logic chips with 1 PLD/GAL to simplify design before next version.Adobe Portable Document Format - 298.18 kB - 12/13/2022 at 20:44 |
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Nanocomp6809V6.pdfKiCad Schematic for Version 6.0 of the Nanocomp. Added Cursor support and improved timing so VGA display area is improved.Adobe Portable Document Format - 322.50 kB - 12/13/2022 at 20:43 |
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Nanocomp6809V5.pdfKiCad schematic for Version 5.0 of the Nanocomp. This adds the CRTC, Video Clock, Counters, Video DAC and Sync timing signals. Character RAM and Video RAM also added for future videos in the series.Adobe Portable Document Format - 274.63 kB - 11/23/2022 at 21:52 |
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Nanocomp6809V4.pdfKiCad schematic for Version 4.0 of the Nanocomp. This replaces the original address decoder with a PLD (GAL) and updated the memory map to use the full 64K address space and makes room for a future video controller.Adobe Portable Document Format - 176.06 kB - 11/13/2022 at 23:13 |
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Nanocomp6809V3.pdfKiCad schematic for Version 3.0 of the Nanocomp which builds on V2 and adds a new buffer board to protect the CPU Data, Address and Control lines. Will allow further expansion in the future for video card etc. Kicad files in Github.Adobe Portable Document Format - 169.20 kB - 11/07/2022 at 20:35 |
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Nanocomp6809V2.pdfKiCad schematic for Version 2.0 of the Nanocomp which builds on V1 and adds a serial port and updates to the Monitor ROM to Load and Save programs in Motorola SREC format. Kicad files in Github.Adobe Portable Document Format - 140.25 kB - 11/02/2022 at 23:12 |
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Nanocomp6809V1.00.pdfKiCad schematic for Version 1.0 of the Nanocomp which matches the original design with just an update for the RAM and EEPROM components. Kicad files in Github.Adobe Portable Document Format - 109.46 kB - 11/02/2022 at 23:12 |
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nanocomp_6809_v2_doc.binThe Version 2 monitor image which includes the Load/Save in SREC format over the serial Port.octet-stream - 2.00 kB - 11/02/2022 at 23:08 |
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nanocomp6809_1981.binThe original 6809 ROM image copied from a TMS2516 EPROM which was used in the original project using PCBs and wirewrapoctet-stream - 2.00 kB - 11/02/2022 at 23:08 |
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nanocomp_6809_v2_doc.txtListing file for the assembled V2 source codeplain - 99.64 kB - 11/02/2022 at 23:07 |
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nanocomp_6809_v2_doc.asmAssembler source disassembled from original binary ROM, with additional comments and support for Load and Save in SREC format to the serial Port added in Version 2plain - 67.51 kB - 11/02/2022 at 23:07 |
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6802_Wireless_World_Jan_1981.pdfThe original Wireless World project based on the Motorola MC6802 processorAdobe Portable Document Format - 741.83 kB - 11/02/2022 at 23:04 |
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6809_schematic_july_1981.pdfExtract of the July 6809 version schematic diagramAdobe Portable Document Format - 495.29 kB - 11/02/2022 at 23:04 |
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6809_Wireless_World_July_1981.pdfThe updated project using the Motorola MC6809 processor.Adobe Portable Document Format - 722.63 kB - 11/02/2022 at 23:04 |
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Nanocomp 6809 8 Bit Retro Computer on Breadboards
Wireless World Magazine in January and June 1981 published this design. Reproduced on solderless breadboards using the original Monitor ROM