Nanocomp6809V7.pdf

KiCad 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.pdf

KiCad 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.pdf

KiCad 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.pdf

KiCad 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.pdf

KiCad 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.pdf

KiCad 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.pdf

KiCad 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.bin

The 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.bin

The original 6809 ROM image copied from a TMS2516 EPROM which was used in the original project using PCBs and wirewrap

octet-stream - 2.00 kB - 11/02/2022 at 23:08

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nanocomp_6809_v2_doc.txt

Listing file for the assembled V2 source code

plain - 99.64 kB - 11/02/2022 at 23:07

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nanocomp_6809_v2_doc.asm

Assembler 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 2

plain - 67.51 kB - 11/02/2022 at 23:07

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6802_Wireless_World_Jan_1981.pdf

The original Wireless World project based on the Motorola MC6802 processor

Adobe Portable Document Format - 741.83 kB - 11/02/2022 at 23:04

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6809_schematic_july_1981.pdf

Extract of the July 6809 version schematic diagram

Adobe Portable Document Format - 495.29 kB - 11/02/2022 at 23:04

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6809_Wireless_World_July_1981.pdf

The updated project using the Motorola MC6809 processor.

Adobe Portable Document Format - 722.63 kB - 11/02/2022 at 23:04

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