Commit message (Collapse) | Author | Files | Lines | ||
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2017-05-23 | board complete, generate gerber (x2) fileshardware | Nao Pross | 49 | -0/+0 | |
this is probably the last commit before printing the PCB, unless there are some other errors in the board design | |||||
2017-05-19 | finish wiring and add eurocard compliant standard holes | Nao Pross | 161 | -0/+0 | |
since there wasn't enough space (I should have added the holes before beginning) there are only 4 holes instead of 6 (2 will be cut out since the space is unused). | |||||
2017-05-19 | wiring for 7 segment displays and traces for the remaining CPU signals | Nao Pross | 50 | -0/+0 | |
2017-05-18 | new traces for cpu signals and for high address to the MMU / addr decoder | Nao Pross | 25 | -0/+0 | |
there are also many other minor changes to connect various wires | |||||
2017-05-18 | wiring for CTC (U8) to address bus and data bus | Nao Pross | 15 | -0/+0 | |
2017-05-18 | wiring for P4 and P5 (I/O ports) and circuits for CLKs and RST | Nao Pross | 4 | -0/+0 | |
2017-05-18 | wires from DB-9 and HDR5x2 connector to MAX214 (U7) and crystal for TL16C550 | Nao Pross | 30 | -0/+0 | |
2017-05-09 | created new layout (starting over) | Nao Pross | 58 | -0/+0 | |
the old layout is still under hw/MainBoard1.PcbDoc | |||||
2017-05-05 | complete wiring for serial interface connector and logic | Nao Pross | 84 | -0/+0 | |
other changes: - new layout, probably the board will have to be resized to a nonstandard size (currently 2EUROCARD) - new footprint HDR5x2_SOCKET for standard 5x2 flatcable connectors | |||||
2017-05-05 | add switches datasheets for footprints | Nao Pross | 5 | -0/+0 | |
2017-04-28 | start printed circuit board design | Nao Pross | 123 | -0/+0 | |
wired: - clock circiuts - reset button set layout for: - CPU & memory - serial interface | |||||
2017-04-13 | scheme update and PCB start | Nao Pross | 37 | -0/+0 | |
add missing capacitor and resistor values (serial XTAL) create new eurocard standard compliant PCB for the uPC and other minor fixes | |||||
2017-04-04 | schematic complete | Nao Pross | 112 | -0/+0 | |
hw: change address decoder chip from GAL16V8 to M4-32/32 (CPLD) change main bus connector with a custom one (intead of PC/104) start building footprint library | |||||
2017-03-31 | added iospace address decoder | Nao Pross | 10 | -0/+0 | |
2017-03-23 | changed scheme layout | Nao Pross | 104 | -0/+0 | |
hw: changed scheme and annotated components doc: added build script for windows sw: added res/ folder with blaster and created jedec document for address decoder pld | |||||
2017-03-17 | hardware nearly finished | Nao Pross | 324 | -0/+0 | |
doc: added datasheets for - GAL16V8 - MAX214 - MAX232 added script to build doc under windows with miktex updated notes hw: finished i/o devices and bus viewer sw: created files for pld programming | |||||
2017-03-06 | hw: moved everything to one sheet | Nao Pross | 215 | -0/+0 | |
2017-02-24 | hw: created library project, doc: added 74LS193 datasheet | Nao Pross | 12 | -0/+0 | |
2017-02-24 | hw: created sch, doc: added uart datasheet | Nao Pross | 1 | -0/+0 | |
2017-02-14 | hw: created z80acpu in sch library | Nao Pross | 10 | -0/+0 | |