artemisamsx artemisa issues

artemisamsx / artemisa

Schematics, PCB designs and HDL simulations to build a 8-bits MSX computer

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issues

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#155 Cptscorcher opened 2 weeks ago
2
Custom power supply

#154 apoloval opened 2 years ago
40
Produce stereo sound outputs

#153 apoloval opened 3 years ago
0
Use 74145 as decoder for keyboard row select

#152 apoloval opened 3 years ago
0
Remove HCT buffers for the CPU

#151 apoloval opened 4 years ago
0
Introduce ±12V power supply rails

#150 apoloval opened 4 years ago
15
Suggestion to add license

#149 Redlolz closed 4 years ago
2
Replace TH resistor networks by a SMD one

#148 apoloval opened 4 years ago
0
Fix pads too close in PS2 connector

#147 apoloval closed 4 years ago
1
Remove ROM page selection jumpers

#146 apoloval closed 4 years ago
1
Use SOIC packages for the remaining logic devices

#145 apoloval closed 4 years ago
1
Research how to provide a PS2 keyboard interface based on 74670

#144 apoloval closed 4 years ago
13
Replace most decoding logic by ATF22V10 GAL

#143 apoloval closed 4 years ago
1
Write GAL equations for decoding logic

#142 apoloval closed 4 years ago
3
Replace footprints of resistors and ceramic capacitors by 1206 packages

#141 apoloval closed 4 years ago
1
Use PLCC44 version of Z84 CPU

#140 apoloval closed 4 years ago
1
Remove 74HC244 buffers from address and control bus

#139 apoloval closed 4 years ago
1
Use a CD74HC154 to decode KBROWs coming from PPI

#138 apoloval closed 4 years ago
1
Use an oscillator instead of a crystal circuit

#137 apoloval closed 4 years ago
2
Use external wait and external int as pulled-up open-collector wires

#136 apoloval opened 4 years ago
1
Use PLCC version of SST39SF010A as ROM

#135 apoloval closed 4 years ago
1
Use AS6C1008 as main RAM

#134 apoloval closed 4 years ago
1
Use CS82C55 as PPI

#133 apoloval closed 4 years ago
1
Try an alternative scan code set to support three key hits

#132 apoloval closed 4 years ago
2
User manual and service manual return 404's

#131 cbmeeks opened 4 years ago
1
Assembly instructions for Artemisa Motherboard Mk.I

#130 apoloval opened 4 years ago
0
Assembly instructions for GFX9918

#129 apoloval opened 4 years ago
0
Assembly instructions for PS2 Keyboard adapter

#128 apoloval opened 4 years ago
0
Prototype PS2 keyboard adapter fails

#127 apoloval closed 4 years ago
3
Detect keyboard disconnections and reset upon reconnect

#126 apoloval closed 4 years ago
3
Combination of arrow up, left and space doesn't work

#125 apoloval closed 4 years ago
1
External VDP must not be connected to GND

#124 apoloval closed 4 years ago
1
Improve build chain of ROM chips

#123 apoloval closed 4 years ago
1
Place a power on switch in the board

#122 apoloval opened 4 years ago
0
Replace power-on reset circuit by a single IC

#121 apoloval opened 4 years ago
1
Replace external oscillator circuit by a built-in clock IC

#120 apoloval opened 4 years ago
0
Scaffolding of GFX9920

#119 apoloval closed 4 years ago
1
PS2 Keyboard PCB corners must be rounded

#118 apoloval closed 4 years ago
1
Dimensions of PS2 Adapter case are incorrect

#117 apoloval closed 4 years ago
1
Right corners of PCB must be rounded

#116 apoloval closed 4 years ago
1
Provide CAD designs for Motherboard case

#115 apoloval closed 4 years ago
1
Annular ring of slot connectors is too small

#114 apoloval closed 4 years ago
1
Dimensions of MSX cartridge slots are wrong

#113 apoloval closed 4 years ago
2
Provide CAD designs for PS2 Keyboard case

#112 apoloval closed 4 years ago
1
Adapt board settings to JLCPCB capabilities

#111 apoloval closed 4 years ago
1
Replace 27pF capacitors by 56pF

#110 apoloval closed 5 years ago
1
Replace 22pF capacitors by 33pF

#109 apoloval closed 5 years ago
1
Wrong key mapping issues

#108 apoloval closed 5 years ago
1
Vias for power tracks are too small

#107 apoloval closed 5 years ago
1
C7 (power-on reset) value is too low

#106 apoloval closed 5 years ago
1