Merge pull request 'Merge memory test and serial output routines' (#1) from gfaraday/chibi-pc09:main into main

Reviewed-on: amberisvibin/chibi-pc09#1

README.md

@@ -27,4 +27,4 @@ Assembly is in progress.
 
 ## License
 
-This project is licensed under the MIT license. This applies to both the hardware (schematics, bill of materials, pcb layouts) and documentation. This does *not* apply to the datasheets/ directory, the books/ directory or code/assist09/. Those files belong to their respective copyright holders.
+This project is licensed under the MIT license. This applies to both the hardware (schematics, bill of materials, pcb layouts) and documentation. This does *not* apply to the datasheets/ directory or code/assist09/. Those files belong to their respective copyright holders.

code/boot/README.md

@@ -22,7 +22,7 @@ From there all you should have to do to generate a `boot.bin` is:
 
 ```sh
 git clone https://github.com/amberisvibin/chibi-pc09.git
-cd chibi-pc09
+cd chibi-pc09/code/boot
 make
 ```
 

docs/74ls612.txt

@@ -1,6 +0,0 @@
-TTL devices can handle CMOS input. HD6309 -> 74LS612
-CMOS devices may or may not handle TTL input. 74LS612 -> peripherals
-
-62256 SRAM, 28C256 EEPROM, 16550 UART all handle TTL input.
-82C42 lists it's outputs as TTL compatible, but says nothing for inputs.
-Must ensure all peripherals are rated for TTL input.

docs/README.md

@@ -3,7 +3,6 @@
 File descriptions:
 
 - links.txt contains useful links i would like to keep
-- 6809-sn74ls612_timing.md contains notes on the mmu and cpu interface
 - tech-spec.md contains basic info on layout of system (outdated)
 - timing.html contains info on vga timing pulled from https://martin.hinner.info/vga/timing.html
 - vga_ram.txt contains notes on ram size for the vga card

pcb/.gitignore

@@ -0,0 +1 @@
+fp-info-cache

pcb/prototype-1/v1.1/prototype-1.kicad_prl

@@ -1,6 +1,6 @@
 {
   "board": {
-    "active_layer": 5,
+    "active_layer": 0,
     "active_layer_preset": "",
     "auto_track_width": true,
     "hidden_netclasses": [],
@@ -51,7 +51,7 @@
       "shapes"
     ],
     "visible_layers": "ffffffff_ffffffff_ffffffff_ffffffff",
-    "zone_display_mode": 0
+    "zone_display_mode": 1
   },
   "git": {
     "repo_type": "",
@@ -59,7 +59,7 @@
     "ssh_key": ""
   },
   "meta": {
-    "filename": "prototype-1(v1.1).kicad_prl",
+    "filename": "prototype-1.kicad_prl",
     "version": 5
   },
   "net_inspector_panel": {