changes

updated gitignore
more notes + datasheets
2025-12-03 19:10:16 +01:00 · 2025-12-01 11:21:21 +01:00 · 2025-10-26 00:59:27 +02:00 · 2025-10-25 20:13:41 +02:00 · 2025-10-23 22:15:23 +02:00 · 2025-10-23 22:15:02 +02:00
52 changed files with 76067 additions and 4331 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,2 @@
+design/**/*-backups/*.zip
+*.lck
--- a/README.md
+++ b/README.md
@@ -10,7 +10,5 @@
 # Arduino Interface

 ## Bus Ideas
- 74HC245, also possible for GPU buffer switching
-
-## PCB
- Dont forget ZIF footprint
+- [74HC245](./datasheets/74HC_HCT245.pdf), bidirectional 3-state bus transciever, also possible for GPU buffer switching
+- [74HC138](./datasheets/74HC_HCT138.pdf), 3->8 address decoder 
--- a/datasheets/74HC20.pdf
+++ b/datasheets/74HC20.pdf
--- a/datasheets/74HC_HCT138.pdf
+++ b/datasheets/74HC_HCT138.pdf
--- a/datasheets/74HC_HCT377.pdf
+++ b/datasheets/74HC_HCT377.pdf
--- a/datasheets/AS7C256C-15PCN.pdf
+++ b/datasheets/AS7C256C-15PCN.pdf
--- a/datasheets/AT28C64B.pdf
+++ b/datasheets/AT28C64B.pdf
--- a/datasheets/ATmega640-1280-1281-2560-2561.pdf
+++ b/datasheets/ATmega640-1280-1281-2560-2561.pdf
--- a/datasheets/ENC28J60.pdf
+++ b/datasheets/ENC28J60.pdf
--- a/datasheets/Intel-P8254.pdf
+++ b/datasheets/Intel-P8254.pdf
--- a/datasheets/LY62256PL-55LL.pdf
+++ b/datasheets/LY62256PL-55LL.pdf
--- a/datasheets/MC6845P.pdf
+++ b/datasheets/MC6845P.pdf
--- a/datasheets/Mega2650PRO.pdf
+++ b/datasheets/Mega2650PRO.pdf
--- a/datasheets/NEC-uPB8214C.pdf
+++ b/datasheets/NEC-uPB8214C.pdf
--- a/datasheets/oscillators-MXO45_MXO45HS.pdf
+++ b/datasheets/oscillators-MXO45_MXO45HS.pdf
--- a/datasheets/tr9c1710.pdf
+++ b/datasheets/tr9c1710.pdf
--- a/design/6502-backups/6502-2025-10-09_214844.zip
+++ b/design/6502-backups/6502-2025-10-09_214844.zip
--- a/design/6502-backups/6502-2025-10-10_011301.zip
+++ b/design/6502-backups/6502-2025-10-10_011301.zip
--- a/design/6502-backups/6502-2025-10-10_232110.zip
+++ b/design/6502-backups/6502-2025-10-10_232110.zip
--- a/design/6502-backups/6502-2025-10-10_232614.zip
+++ b/design/6502-backups/6502-2025-10-10_232614.zip
--- a/design/6502.bak
+++ b/design/6502.bak
--- a/design/6502.kicad_pcb
+++ b/design/6502.kicad_pcb
@@ -1,2 +0,0 @@
-(kicad_pcb (version 20240108) (generator "pcbnew") (generator_version "8.0")
-)
--- a/design/6502.kicad_prl
+++ b/design/6502.kicad_prl
@@ -1,83 +0,0 @@
-{
-  "board": {
-    "active_layer": 0,
-    "active_layer_preset": "",
-    "auto_track_width": true,
-    "hidden_netclasses": [],
-    "hidden_nets": [],
-    "high_contrast_mode": 0,
-    "net_color_mode": 1,
-    "opacity": {
-      "images": 0.6,
-      "pads": 1.0,
-      "tracks": 1.0,
-      "vias": 1.0,
-      "zones": 0.6
-    },
-    "selection_filter": {
-      "dimensions": true,
-      "footprints": true,
-      "graphics": true,
-      "keepouts": true,
-      "lockedItems": false,
-      "otherItems": true,
-      "pads": true,
-      "text": true,
-      "tracks": true,
-      "vias": true,
-      "zones": true
-    },
-    "visible_items": [
-      0,
-      1,
-      2,
-      3,
-      4,
-      5,
-      8,
-      9,
-      10,
-      11,
-      12,
-      13,
-      15,
-      16,
-      17,
-      18,
-      19,
-      20,
-      21,
-      22,
-      23,
-      24,
-      25,
-      26,
-      27,
-      28,
-      29,
-      30,
-      32,
-      33,
-      34,
-      35,
-      36,
-      39,
-      40
-    ],
-    "visible_layers": "fffffff_ffffffff",
-    "zone_display_mode": 0
-  },
-  "git": {
-    "repo_password": "",
-    "repo_type": "",
-    "repo_username": "",
-    "ssh_key": ""
-  },
-  "meta": {
-    "filename": "6502.kicad_prl",
-    "version": 3
-  },
-  "project": {
-    "files": []
-  }
-}
--- a/design/6502.kicad_sch
+++ b/design/6502.kicad_sch
@@ -1,51 +0,0 @@
-(kicad_sch
-	(version 20231120)
-	(generator "eeschema")
-	(generator_version "8.0")
-	(uuid "27fa70ec-70f1-4ec5-9aef-43afe5f03596")
-	(paper "A4")
-	(lib_symbols)
-	(sheet
-		(at 30.48 36.83)
-		(size 73.66 44.45)
-		(fields_autoplaced yes)
-		(stroke
-			(width 0.1524)
-			(type solid)
-		)
-		(fill
-			(color 0 0 0 0.0000)
-		)
-		(uuid "84677476-d952-4526-bbdb-640c00b36086")
-		(property "Sheetname" "CPU_board"
-			(at 30.48 36.1184 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-				(justify left bottom)
-			)
-		)
-		(property "Sheetfile" "untitled.kicad_sch"
-			(at 30.48 81.8646 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-				(justify left top)
-			)
-		)
-		(instances
-			(project "6502"
-				(path "/27fa70ec-70f1-4ec5-9aef-43afe5f03596"
-					(page "2")
-				)
-			)
-		)
-	)
-	(sheet_instances
-		(path "/"
-			(page "1")
-		)
-	)
-)
--- a/design/6502.kicad_sym
+++ b/design/6502.kicad_sym
--- a/design/74xxLogic.bak
+++ b/design/74xxLogic.bak
--- a/design/74xxLogic.kicad_sym
+++ b/design/74xxLogic.kicad_sym
--- a/design/arduino.kicad_sym
+++ b/design/arduino.kicad_sym
--- a/design/arduino.pretty/Mega2560Pro.kicad_mod
+++ b/design/arduino.pretty/Mega2560Pro.kicad_mod
@@ -0,0 +1,814 @@
+(footprint "Mega2560Pro"
+	(version 20240108)
+	(generator "pcbnew")
+	(generator_version "8.0")
+	(layer "F.Cu")
+	(property "Reference" "REF**"
+		(at 19.42 -4.44 0)
+		(unlocked yes)
+		(layer "F.SilkS")
+		(uuid "db9bc0b1-28e1-4764-b3c9-53c8f0f9ef3b")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.1)
+			)
+		)
+	)
+	(property "Value" "Mega2560Pro"
+		(at 19.42 -2.94 0)
+		(unlocked yes)
+		(layer "F.Fab")
+		(uuid "59a2c308-f4ae-4ad3-b54b-ca21c05b3386")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.15)
+			)
+		)
+	)
+	(property "Footprint" ""
+		(at 19.42 -3.94 0)
+		(unlocked yes)
+		(layer "F.Fab")
+		(hide yes)
+		(uuid "558ec8cf-eefd-4b4c-961b-a9e987b6941a")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.15)
+			)
+		)
+	)
+	(property "Datasheet" ""
+		(at 19.42 -3.94 0)
+		(unlocked yes)
+		(layer "F.Fab")
+		(hide yes)
+		(uuid "1746cc8c-fbee-4012-b8c4-7d10563cfe51")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.15)
+			)
+		)
+	)
+	(property "Description" ""
+		(at 19.42 -3.94 0)
+		(unlocked yes)
+		(layer "F.Fab")
+		(hide yes)
+		(uuid "47db060b-2206-4153-bb26-673806e5d8d2")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.15)
+			)
+		)
+	)
+	(attr through_hole)
+	(fp_rect
+		(start 0.2 -0.05)
+		(end 38.83 55.71)
+		(stroke
+			(width 0.1)
+			(type default)
+		)
+		(fill none)
+		(layer "F.SilkS")
+		(uuid "40a0a275-8f60-4d61-8a0a-e5cb9e25b814")
+	)
+	(fp_rect
+		(start 20.69 -1.22)
+		(end 29.81 5.76)
+		(stroke
+			(width 0.2)
+			(type default)
+		)
+		(fill none)
+		(layer "F.SilkS")
+		(uuid "e9d9b42d-8dbc-4ee3-b866-352091460933")
+	)
+	(fp_circle
+		(center 23.19 52.85)
+		(end 24.79 52.85)
+		(stroke
+			(width 0.2)
+			(type default)
+		)
+		(fill none)
+		(layer "F.SilkS")
+		(uuid "1f7ae5bf-d3dc-4b31-a7ad-17bb95ef79d2")
+	)
+	(fp_circle
+		(center 30.25 15.01)
+		(end 31.85 15.01)
+		(stroke
+			(width 0.2)
+			(type default)
+		)
+		(fill none)
+		(layer "F.SilkS")
+		(uuid "3159a93f-ae43-4609-9958-a2f341ac166a")
+	)
+	(fp_text user "${REFERENCE}"
+		(at 19.42 -1.44 0)
+		(unlocked yes)
+		(layer "F.Fab")
+		(uuid "d82c9caa-ee92-40ba-9d6f-7fed81389c1d")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.15)
+			)
+		)
+	)
+	(pad "1" thru_hole circle
+		(at 4.24 3.4)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "7ec2639b-f307-4637-bc04-a2bcc6383315")
+	)
+	(pad "2" thru_hole circle
+		(at 1.7 3.4)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "692d3431-2a8a-41df-b3c2-b825501e2a5b")
+	)
+	(pad "3" thru_hole circle
+		(at 4.24 5.94)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "576158c0-970f-434c-92f3-fcb74a2261a9")
+	)
+	(pad "4" thru_hole circle
+		(at 1.7 5.94)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "738ffed4-5953-4fe2-aee9-78e21f8b78d8")
+	)
+	(pad "5" thru_hole circle
+		(at 4.24 8.48)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "9cbd2f6e-2b97-4624-8bfc-3a2813d9155d")
+	)
+	(pad "6" thru_hole circle
+		(at 1.7 8.48)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "0b0edc50-3ac9-4c49-a529-fdde7a1f6245")
+	)
+	(pad "7" thru_hole circle
+		(at 4.24 11.02)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "dae8fbf7-956e-4855-8769-05b0a4e7b4a3")
+	)
+	(pad "8" thru_hole circle
+		(at 1.7 11.02)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "d5cf48df-699c-4166-b1c5-eb5d71089265")
+	)
+	(pad "9" thru_hole circle
+		(at 4.24 13.56)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
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+		(layers "*.Cu" "*.Mask")
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+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "cdc20b9f-fb4e-4b1d-8f9f-3f0cedfb32df")
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+	(pad "12" thru_hole circle
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+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
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+		(layers "*.Cu" "*.Mask")
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+	)
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+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "abd1587d-312e-4c69-a2ea-3f072f0c899f")
+	)
+	(pad "33" thru_hole circle
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+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "2e6076f9-a2f9-430c-befa-83857a6150ce")
+	)
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+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "9197f765-55ef-4827-9cd7-d2048d0fe532")
+	)
+	(pad "36" thru_hole circle
+		(at 1.7 46.58)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "05752610-1bbe-44fc-a632-c47260582923")
+	)
+	(pad "37" thru_hole circle
+		(at 4.24 49.12)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "013ce90e-64ed-4e7f-bbbc-84a88b208a43")
+	)
+	(pad "38" thru_hole circle
+		(at 1.7 49.12)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "82b9ff9f-b361-4d17-ab62-512fe4f46388")
+	)
+	(pad "39" thru_hole circle
+		(at 4.24 51.66)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "6c2129a1-a406-43b9-a39c-054604e1a1d7")
+	)
+	(pad "40" thru_hole circle
+		(at 1.7 51.66)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "3390e2eb-53f0-4aff-a33c-89a4fd286891")
+	)
+	(pad "41" thru_hole circle
+		(at 4.24 54.2)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "0099e0ed-a24c-40b5-883e-e72581694aa6")
+	)
+	(pad "42" thru_hole circle
+		(at 1.7 54.2)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "972838d0-905b-4faf-a0ae-8754e5a02ae3")
+	)
+	(pad "43" thru_hole circle
+		(at 37.26 16.1)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "b5b5c6ba-3266-4d95-a564-3dc0cf7b216d")
+	)
+	(pad "44" thru_hole circle
+		(at 34.72 16.1)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "8291cc37-ad20-4db3-9384-bb228690ff2f")
+	)
+	(pad "45" thru_hole circle
+		(at 37.26 18.64)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "bca1d5ea-1b8c-4575-8e63-3140c2487261")
+	)
+	(pad "46" thru_hole circle
+		(at 34.72 18.64)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "a4b82915-9a9b-4259-bbe7-f4bbb530baf3")
+	)
+	(pad "47" thru_hole circle
+		(at 37.26 21.18)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "fe194b74-58a0-417a-88ca-42488d01de49")
+	)
+	(pad "48" thru_hole circle
+		(at 34.72 21.18)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "3c4bcfd7-b074-416e-ba49-db02523a32ea")
+	)
+	(pad "49" thru_hole circle
+		(at 37.26 23.72)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "c36f6c60-4f1a-458f-a0cb-0000d75481f0")
+	)
+	(pad "50" thru_hole circle
+		(at 34.72 23.72)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "54ca602a-e0dd-4820-85d0-6ba543aa724f")
+	)
+	(pad "51" thru_hole circle
+		(at 37.26 26.26)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "bdd5d305-c312-4f5d-ad72-b95304c81760")
+	)
+	(pad "52" thru_hole circle
+		(at 34.72 26.26)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "05d0262b-49ce-4b6f-83e4-eb6e49fc7e9c")
+	)
+	(pad "53" thru_hole circle
+		(at 37.26 28.8)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "9bf8e7a4-55b6-4337-8e5c-21c5cb94ae82")
+	)
+	(pad "54" thru_hole circle
+		(at 34.72 28.8)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "0578e8cd-e78e-43d7-8259-3bd29759b456")
+	)
+	(pad "55" thru_hole circle
+		(at 37.26 31.34)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "13dcace2-5a24-4a93-a3b2-ba504852220e")
+	)
+	(pad "56" thru_hole circle
+		(at 34.72 31.34)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "1ad48e27-f2ba-487a-bab2-d659c45b8295")
+	)
+	(pad "57" thru_hole circle
+		(at 37.26 33.88)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "549eef3d-8f7e-4a15-8232-82c3d86f6c32")
+	)
+	(pad "58" thru_hole circle
+		(at 34.72 33.88)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "b11bf4de-5d27-4a8b-b148-329403117527")
+	)
+	(pad "59" thru_hole circle
+		(at 37.26 36.42)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "45b01c73-ba75-4ca7-86c3-0f9d6776fe7e")
+	)
+	(pad "60" thru_hole circle
+		(at 34.72 36.42)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "15d0dfbd-29e2-4005-8a5b-7ddc8be1842c")
+	)
+	(pad "61" thru_hole circle
+		(at 37.26 38.96)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "9c500a48-e233-4b18-94c7-5ea652f16407")
+	)
+	(pad "62" thru_hole circle
+		(at 34.72 38.96)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "4733c225-c9ee-44e8-bb03-d7348d3f781f")
+	)
+	(pad "63" thru_hole circle
+		(at 37.26 41.5)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "bd304f6f-815c-4160-a7ce-7df63ad6b170")
+	)
+	(pad "64" thru_hole circle
+		(at 34.72 41.5)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "f9f7a8da-a86d-48fc-bcc4-96eeecd5ed9c")
+	)
+	(pad "65" thru_hole circle
+		(at 37.26 44.04)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "c0b97fcd-7109-4ffb-af59-07cee77fdd28")
+	)
+	(pad "66" thru_hole circle
+		(at 34.72 44.04)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "bc601e71-c4f9-4b4c-9a24-234d797a58eb")
+	)
+	(pad "67" thru_hole circle
+		(at 37.26 46.58)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "fd974ca0-31f0-4dba-96ef-96eae7758ec5")
+	)
+	(pad "68" thru_hole circle
+		(at 34.72 46.58)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "a7bbc41b-2c19-440f-a685-a89893a17c67")
+	)
+	(pad "69" thru_hole circle
+		(at 37.26 49.12)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "942ee776-a6af-4861-aaa1-bfd3ad5ada01")
+	)
+	(pad "70" thru_hole circle
+		(at 34.72 49.12)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "9cdf3724-8ff6-422b-9d5f-89083f7a7248")
+	)
+	(pad "71" thru_hole circle
+		(at 37.26 51.66)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "e7624c98-27be-489b-8ebd-ed783bed973e")
+	)
+	(pad "72" thru_hole circle
+		(at 34.72 51.66)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "6fb09f31-208d-4ad4-a2e2-8ead893baa8a")
+	)
+	(pad "73" thru_hole circle
+		(at 37.26 54.2)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "553d663e-7975-4112-bd6d-60b8ffb9cd2f")
+	)
+	(pad "74" thru_hole circle
+		(at 34.72 54.2)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "145e7009-ada0-4648-8fb3-d3e8eefea1f4")
+	)
+	(pad "75" thru_hole circle
+		(at 32.18 54.2 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "e79fc5c6-64ca-44c9-981c-f8c1a27f06c5")
+	)
+	(pad "76" thru_hole circle
+		(at 32.18 51.66 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "2fcd7c7e-38d1-499b-8994-f745ec157b9b")
+	)
+	(pad "77" thru_hole circle
+		(at 29.64 54.2 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "0b9f076c-3e48-4bad-853c-8578d4428830")
+	)
+	(pad "78" thru_hole circle
+		(at 29.64 51.66 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "0a2b150e-8b85-41b6-983e-5f129b53a813")
+	)
+	(pad "79" thru_hole circle
+		(at 27.1 54.2 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "47575a9e-bd5e-4d8c-b8c7-83b455583d9c")
+	)
+	(pad "80" thru_hole circle
+		(at 27.1 51.66 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "16e011e3-44aa-4853-b4b6-b19b9794604e")
+	)
+	(pad "81" thru_hole circle
+		(at 19.48 54.2 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "e7b7ac52-c08e-4593-b440-e48b69bc2ecf")
+	)
+	(pad "82" thru_hole circle
+		(at 19.48 51.66 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "b58e4429-9b22-49a7-94c1-1c7734b2a4c7")
+	)
+	(pad "83" thru_hole circle
+		(at 16.94 54.2 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "266b5e9f-1361-48b6-804e-3698ddbb9928")
+	)
+	(pad "84" thru_hole circle
+		(at 16.94 51.66 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "59e501fb-07f4-47e5-8f8b-c1aafc8d5b6e")
+	)
+	(pad "85" thru_hole circle
+		(at 14.4 54.2 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "056f7491-bf64-4e48-bce1-57d093e5c2a6")
+	)
+	(pad "86" thru_hole circle
+		(at 14.4 51.66 270)
+		(size 1.524 1.524)
+		(drill 0.762)
+		(layers "*.Cu" "*.Mask")
+		(remove_unused_layers no)
+		(uuid "12acfaf4-bff3-4275-83aa-361df087dce2")
+	)
+)
--- a/design/cpu_board.kicad_sch-bak
+++ b/design/cpu_board.kicad_sch-bak
--- a/design/cpu_board/cpu_board.kicad_pcb
+++ b/design/cpu_board/cpu_board.kicad_pcb
@@ -0,0 +1,2 @@
+(kicad_pcb (version 20241229) (generator "pcbnew") (generator_version "9.0")
+)
--- a/design/cpu_board/cpu_board.kicad_prl
+++ b/design/cpu_board/cpu_board.kicad_prl
@@ -0,0 +1,98 @@
+{
+  "board": {
+    "active_layer": 0,
+    "active_layer_preset": "",
+    "auto_track_width": true,
+    "hidden_netclasses": [],
+    "hidden_nets": [],
+    "high_contrast_mode": 0,
+    "net_color_mode": 1,
+    "opacity": {
+      "images": 0.6,
+      "pads": 1.0,
+      "shapes": 1.0,
+      "tracks": 1.0,
+      "vias": 1.0,
+      "zones": 0.6
+    },
+    "selection_filter": {
+      "dimensions": true,
+      "footprints": true,
+      "graphics": true,
+      "keepouts": true,
+      "lockedItems": false,
+      "otherItems": true,
+      "pads": true,
+      "text": true,
+      "tracks": true,
+      "vias": true,
+      "zones": true
+    },
+    "visible_items": [
+      "vias",
+      "footprint_text",
+      "footprint_anchors",
+      "ratsnest",
+      "grid",
+      "footprints_front",
+      "footprints_back",
+      "footprint_values",
+      "footprint_references",
+      "tracks",
+      "drc_errors",
+      "drawing_sheet",
+      "bitmaps",
+      "pads",
+      "zones",
+      "drc_warnings",
+      "drc_exclusions",
+      "locked_item_shadows",
+      "conflict_shadows",
+      "shapes"
+    ],
+    "visible_layers": "ffffffff_ffffffff_ffffffff_ffffffff",
+    "zone_display_mode": 0
+  },
+  "git": {
+    "repo_type": "",
+    "repo_username": "",
+    "ssh_key": ""
+  },
+  "meta": {
+    "filename": "cpu_board.kicad_prl",
+    "version": 5
+  },
+  "net_inspector_panel": {
+    "col_hidden": [],
+    "col_order": [],
+    "col_widths": [],
+    "custom_group_rules": [],
+    "expanded_rows": [],
+    "filter_by_net_name": true,
+    "filter_by_netclass": true,
+    "filter_text": "",
+    "group_by_constraint": false,
+    "group_by_netclass": false,
+    "show_unconnected_nets": false,
+    "show_zero_pad_nets": false,
+    "sort_ascending": true,
+    "sorting_column": -1
+  },
+  "open_jobsets": [],
+  "project": {
+    "files": []
+  },
+  "schematic": {
+    "selection_filter": {
+      "graphics": true,
+      "images": true,
+      "labels": true,
+      "lockedItems": false,
+      "otherItems": true,
+      "pins": true,
+      "symbols": true,
+      "text": true,
+      "wires": true
+    }
+  }
+}
--- a/design/cpu_board/cpu_board.kicad_pro
+++ b/design/cpu_board/cpu_board.kicad_pro
@@ -16,6 +16,7 @@
      "mfg": "",
      "mpn": ""
    },
+    "layer_pairs": [],
    "layer_presets": [],
    "viewports": []
  },
@@ -203,17 +204,21 @@
      "bus_entry_needed": "error",
      "bus_to_bus_conflict": "error",
      "bus_to_net_conflict": "error",
-      "conflicting_netclasses": "error",
      "different_unit_footprint": "error",
      "different_unit_net": "error",
      "duplicate_reference": "error",
      "duplicate_sheet_names": "error",
      "endpoint_off_grid": "warning",
      "extra_units": "error",
+      "footprint_filter": "ignore",
+      "footprint_link_issues": "warning",
+      "four_way_junction": "ignore",
      "global_label_dangling": "warning",
      "hier_label_mismatch": "error",
      "label_dangling": "error",
+      "label_multiple_wires": "warning",
      "lib_symbol_issues": "warning",
+      "lib_symbol_mismatch": "warning",
      "missing_bidi_pin": "warning",
      "missing_input_pin": "warning",
      "missing_power_pin": "error",
@@ -226,9 +231,15 @@
      "pin_not_driven": "error",
      "pin_to_pin": "warning",
      "power_pin_not_driven": "error",
+      "same_local_global_label": "warning",
+      "similar_label_and_power": "warning",
      "similar_labels": "warning",
+      "similar_power": "warning",
      "simulation_model_issue": "ignore",
+      "single_global_label": "ignore",
      "unannotated": "error",
+      "unconnected_wire_endpoint": "warning",
+      "undefined_netclass": "error",
      "unit_value_mismatch": "error",
      "unresolved_variable": "error",
      "wire_dangling": "error"
@@ -239,8 +250,8 @@
    "pinned_symbol_libs": []
  },
  "meta": {
-    "filename": "6502.kicad_pro",
-    "version": 1
+    "filename": "cpu_board.kicad_pro",
+    "version": 3
  },
  "net_settings": {
    "classes": [
@@ -255,6 +266,7 @@
        "microvia_drill": 0.1,
        "name": "Default",
        "pcb_color": "rgba(0, 0, 0, 0.000)",
+        "priority": 2147483647,
        "schematic_color": "rgba(0, 0, 0, 0.000)",
        "track_width": 0.2,
        "via_diameter": 0.6,
@@ -263,7 +275,7 @@
      }
    ],
    "meta": {
-      "version": 3
+      "version": 4
    },
    "net_colors": null,
    "netclass_assignments": null,
@@ -285,7 +297,7 @@
  },
  "schematic": {
    "annotate_start_num": 0,
-    "bom_export_filename": "",
+    "bom_export_filename": "${PROJECTNAME}.csv",
    "bom_fmt_presets": [],
    "bom_fmt_settings": {
      "field_delimiter": ",",
@@ -306,40 +318,53 @@
          "name": "Reference",
          "show": true
        },
-        {
-          "group_by": true,
-          "label": "Value",
-          "name": "Value",
-          "show": true
-        },
-        {
-          "group_by": false,
-          "label": "Datasheet",
-          "name": "Datasheet",
-          "show": true
-        },
-        {
-          "group_by": false,
-          "label": "Footprint",
-          "name": "Footprint",
-          "show": true
-        },
        {
          "group_by": false,
          "label": "Qty",
          "name": "${QUANTITY}",
          "show": true
        },
+        {
+          "group_by": true,
+          "label": "Value",
+          "name": "Value",
+          "show": true
+        },
        {
          "group_by": true,
          "label": "DNP",
          "name": "${DNP}",
          "show": true
+        },
+        {
+          "group_by": true,
+          "label": "Exclude from BOM",
+          "name": "${EXCLUDE_FROM_BOM}",
+          "show": true
+        },
+        {
+          "group_by": true,
+          "label": "Exclude from Board",
+          "name": "${EXCLUDE_FROM_BOARD}",
+          "show": true
+        },
+        {
+          "group_by": true,
+          "label": "Footprint",
+          "name": "Footprint",
+          "show": true
+        },
+        {
+          "group_by": false,
+          "label": "Datasheet",
+          "name": "Datasheet",
+          "show": true
        }
      ],
      "filter_string": "",
      "group_symbols": true,
-      "name": "Grouped By Value",
+      "include_excluded_from_bom": true,
+      "name": "Default Editing",
      "sort_asc": true,
      "sort_field": "Reference"
    },
@@ -373,6 +398,7 @@
    "net_format_name": "",
    "page_layout_descr_file": "",
    "plot_directory": "",
+    "space_save_all_events": true,
    "spice_current_sheet_as_root": false,
    "spice_external_command": "spice \"%I\"",
    "spice_model_current_sheet_as_root": true,
@@ -384,12 +410,8 @@
  },
  "sheets": [
    [
-      "27fa70ec-70f1-4ec5-9aef-43afe5f03596",
+      "7997bb75-67c5-4059-a258-ca352fda42f5",
      "Root"
-    ],
-    [
-      "84677476-d952-4526-bbdb-640c00b36086",
-      "CPU_board"
    ]
  ],
  "text_variables": {}
--- a/design/cpu_board/cpu_board.kicad_sch
+++ b/design/cpu_board/cpu_board.kicad_sch
--- a/design/cpu_board/sym-lib-table
+++ b/design/cpu_board/sym-lib-table
@@ -0,0 +1,5 @@
+(sym_lib_table
+  (version 7)
+  (lib (name "6502")(type "KiCad")(uri "C:/Users/Maxime Vorwerk/Documents/source/6502/design/6502.kicad_sym")(options "")(descr ""))
+  (lib (name "74xxLogic")(type "KiCad")(uri "C:/Users/Maxime Vorwerk/Documents/source/6502/design/74xxLogic.kicad_sym")(options "")(descr ""))
+)
--- a/design/sym-lib-table
+++ b/design/sym-lib-table
@@ -1,4 +0,0 @@
-(sym_lib_table
-  (version 7)
-  (lib (name "6502")(type "KiCad")(uri "${KIPRJMOD}/6502.kicad_sym")(options "")(descr ""))
-)
--- a/mouser_library/SamacSys_Parts.3dshapes/AS7C256C-15PCN.stp
+++ b/mouser_library/SamacSys_Parts.3dshapes/AS7C256C-15PCN.stp
--- a/mouser_library/SamacSys_Parts.3dshapes/NE555DR.stp
+++ b/mouser_library/SamacSys_Parts.3dshapes/NE555DR.stp
--- a/mouser_library/SamacSys_Parts.dcm
+++ b/mouser_library/SamacSys_Parts.dcm
@@ -0,0 +1,15 @@
+EESchema-DOCLIB  Version 2.0
+#
+$CMP NE555DR
+D Single Precision Timer
+K
+F http://www.ti.com/lit/ds/symlink/ne555.pdf
+$ENDCMP
+#
+$CMP AS7C256C-15PCN
+D SRAM 256K, SRAM, 32K x 8, 5V, 28pin PDIP, 15ns, Commercial Temp, C Die
+K
+F 
+$ENDCMP
+#
+#End Doc Library
--- a/mouser_library/SamacSys_Parts.kicad_sym
+++ b/mouser_library/SamacSys_Parts.kicad_sym
@@ -0,0 +1,228 @@
+(kicad_symbol_lib (version 20220914) (generator SamacSys_ECAD_Model)
+  (symbol "NE555DR" (in_bom yes) (on_board yes)
+    (property "Reference" "IC" (at 26.67 15.24 0)
+      (effects (font (size 1.27 1.27)) (justify left top))
+    )
+    (property "Value" "NE555DR" (at 26.67 12.7 0)
+      (effects (font (size 1.27 1.27)) (justify left top))
+    )
+    (property "Footprint" "SOIC127P600X175-8N" (at 26.67 -87.3 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Datasheet" "https: //www.ti.com/lit/gpn/ne555" (at 26.67 -187.3 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "ki_description" "Single Precision Timer" (at 26.67 -287.3 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Height" "1.75" (at 26.67 -387.3 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Manufacturer_Name" "Texas Instruments" (at 26.67 -487.3 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Manufacturer_Part_Number" "NE555DR" (at 26.67 -587.3 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Mouser Part Number" "595-NE555DR" (at 26.67 -687.3 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Mouser Price/Stock" "https://www.mouser.co.uk/ProductDetail/Texas-Instruments/NE555DR?qs=gb35HGp1gQJ5U8ZthvvoVQ%3D%3D" (at 26.67 -787.3 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Arrow Part Number" "NE555DR" (at 26.67 -887.3 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Arrow Price/Stock" "https://www.arrow.com/en/products/ne555dr/texas-instruments?region=nac" (at 26.67 -987.3 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (rectangle
+      (start 5.08 10.16)
+      (end 25.4 -20.32)
+      (stroke (width 0.254) (type default))
+      (fill (type background))
+    )
+    (pin passive line (at 15.24 -25.4 90) (length 5.08)
+      (name "GND" (effects (font (size 1.27 1.27))))
+      (number "1" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -10.16 0) (length 5.08)
+      (name "TRIG" (effects (font (size 1.27 1.27))))
+      (number "2" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 30.48 0 180) (length 5.08)
+      (name "OUT" (effects (font (size 1.27 1.27))))
+      (number "3" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 0 0) (length 5.08)
+      (name "~{RESET}" (effects (font (size 1.27 1.27))))
+      (number "4" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 12.7 15.24 270) (length 5.08)
+      (name "CONT" (effects (font (size 1.27 1.27))))
+      (number "5" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -7.62 0) (length 5.08)
+      (name "THRES" (effects (font (size 1.27 1.27))))
+      (number "6" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -2.54 0) (length 5.08)
+      (name "DISCH" (effects (font (size 1.27 1.27))))
+      (number "7" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 17.78 15.24 270) (length 5.08)
+      (name "VCC" (effects (font (size 1.27 1.27))))
+      (number "8" (effects (font (size 1.27 1.27))))
+    )
+  )
+  (symbol "AS7C256C-15PCN" (in_bom yes) (on_board yes)
+    (property "Reference" "IC" (at 24.13 7.62 0)
+      (effects (font (size 1.27 1.27)) (justify left top))
+    )
+    (property "Value" "AS7C256C-15PCN" (at 24.13 5.08 0)
+      (effects (font (size 1.27 1.27)) (justify left top))
+    )
+    (property "Footprint" "DIP787W46P254L3537H533Q28N" (at 24.13 -94.92 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Datasheet" "" (at 24.13 -194.92 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "ki_description" "SRAM 256K, SRAM, 32K x 8, 5V, 28pin PDIP, 15ns, Commercial Temp, C Die" (at 24.13 -294.92 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Height" "5.334" (at 24.13 -394.92 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Mouser Part Number" "" (at 24.13 -494.92 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Mouser Price/Stock" "" (at 24.13 -594.92 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Manufacturer_Name" "Alliance Memory" (at 24.13 -694.92 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (property "Manufacturer_Part_Number" "AS7C256C-15PCN" (at 24.13 -794.92 0)
+      (effects (font (size 1.27 1.27)) (justify left top) hide)
+    )
+    (rectangle
+      (start 5.08 2.54)
+      (end 22.86 -35.56)
+      (stroke (width 0.254) (type default))
+      (fill (type background))
+    )
+    (pin passive line (at 0 0 0) (length 5.08)
+      (name "A14" (effects (font (size 1.27 1.27))))
+      (number "1" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -2.54 0) (length 5.08)
+      (name "A12" (effects (font (size 1.27 1.27))))
+      (number "2" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -5.08 0) (length 5.08)
+      (name "A7" (effects (font (size 1.27 1.27))))
+      (number "3" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -7.62 0) (length 5.08)
+      (name "A6" (effects (font (size 1.27 1.27))))
+      (number "4" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -10.16 0) (length 5.08)
+      (name "A5" (effects (font (size 1.27 1.27))))
+      (number "5" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -12.7 0) (length 5.08)
+      (name "A4" (effects (font (size 1.27 1.27))))
+      (number "6" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -15.24 0) (length 5.08)
+      (name "A3" (effects (font (size 1.27 1.27))))
+      (number "7" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -17.78 0) (length 5.08)
+      (name "A2" (effects (font (size 1.27 1.27))))
+      (number "8" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -20.32 0) (length 5.08)
+      (name "A1" (effects (font (size 1.27 1.27))))
+      (number "9" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -22.86 0) (length 5.08)
+      (name "A0" (effects (font (size 1.27 1.27))))
+      (number "10" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -25.4 0) (length 5.08)
+      (name "I/O1" (effects (font (size 1.27 1.27))))
+      (number "11" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -27.94 0) (length 5.08)
+      (name "I/O2" (effects (font (size 1.27 1.27))))
+      (number "12" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -30.48 0) (length 5.08)
+      (name "I/O3" (effects (font (size 1.27 1.27))))
+      (number "13" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 0 -33.02 0) (length 5.08)
+      (name "VSS" (effects (font (size 1.27 1.27))))
+      (number "14" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 0 180) (length 5.08)
+      (name "VCC" (effects (font (size 1.27 1.27))))
+      (number "28" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -2.54 180) (length 5.08)
+      (name "WE#" (effects (font (size 1.27 1.27))))
+      (number "27" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -5.08 180) (length 5.08)
+      (name "A13" (effects (font (size 1.27 1.27))))
+      (number "26" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -7.62 180) (length 5.08)
+      (name "A8" (effects (font (size 1.27 1.27))))
+      (number "25" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -10.16 180) (length 5.08)
+      (name "A9" (effects (font (size 1.27 1.27))))
+      (number "24" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -12.7 180) (length 5.08)
+      (name "A11" (effects (font (size 1.27 1.27))))
+      (number "23" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -15.24 180) (length 5.08)
+      (name "OE#" (effects (font (size 1.27 1.27))))
+      (number "22" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -17.78 180) (length 5.08)
+      (name "A10" (effects (font (size 1.27 1.27))))
+      (number "21" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -20.32 180) (length 5.08)
+      (name "CE#" (effects (font (size 1.27 1.27))))
+      (number "20" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -22.86 180) (length 5.08)
+      (name "I/O8" (effects (font (size 1.27 1.27))))
+      (number "19" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -25.4 180) (length 5.08)
+      (name "I/O7" (effects (font (size 1.27 1.27))))
+      (number "18" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -27.94 180) (length 5.08)
+      (name "I/O6" (effects (font (size 1.27 1.27))))
+      (number "17" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -30.48 180) (length 5.08)
+      (name "I/O5" (effects (font (size 1.27 1.27))))
+      (number "16" (effects (font (size 1.27 1.27))))
+    )
+    (pin passive line (at 27.94 -33.02 180) (length 5.08)
+      (name "I/O4" (effects (font (size 1.27 1.27))))
+      (number "15" (effects (font (size 1.27 1.27))))
+    )
+  )
+)
--- a/mouser_library/SamacSys_Parts.lib
+++ b/mouser_library/SamacSys_Parts.lib
@@ -0,0 +1,77 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#SamacSys ECAD Model NE555DR
+#/6648/2/2.37/8/4/Integrated Circuit
+DEF NE555DR IC 0 30 Y Y 1 F N
+F0 "IC" 1050 600 50 H V L CNN
+F1 "NE555DR" 1050 500 50 H V L CNN
+F2 "SOIC127P600X175-8N" 1050 400 50 H I L CNN
+F3 "http://www.ti.com/lit/ds/symlink/ne555.pdf" 1050 300 50 H I L CNN
+F4 "Single Precision Timer" 1050 200 50 H I L CNN "Description"
+F5 "1.75" 1050 100 50 H I L CNN "Height"
+F6 "Texas Instruments" 1050 0 50 H I L CNN "Manufacturer_Name"
+F7 "NE555DR" 1050 -100 50 H I L CNN "Manufacturer_Part_Number"
+F8 "595-NE555DR" 1050 -200 50 H I L CNN "Mouser Part Number"
+F9 "https://www.mouser.com/Search/Refine.aspx?Keyword=595-NE555DR" 1050 -300 50 H I L CNN "Mouser Price/Stock"
+F10 "1218414" 1050 -400 50 H I L CNN "RS Part Number"
+F11 "http//uk.rs-online.com/web/p/products/1218414" 1050 -500 50 H I L CNN "RS Price/Stock"
+DRAW
+X GND 1 600 -1000 200 U 50 50 0 0 B
+X TRIG 2 0 -400 200 R 50 50 0 0 B
+X OUT 3 1200 -200 200 L 50 50 0 0 B
+X ~RESET 4 0 0 200 R 50 50 0 0 B
+X CONT 5 500 600 200 D 50 50 0 0 B
+X THRES 6 0 -300 200 R 50 50 0 0 B
+X DISCH 7 0 -100 200 R 50 50 0 0 B
+X VCC 8 700 600 200 D 50 50 0 0 B
+P 5 0 1 6 200 400 1000 400 1000 -800 200 -800 200 400 N
+ENDDRAW
+ENDDEF
+#
+#SamacSys ECAD Model AS7C256C-15PCN
+#/20526815/1800066/2.50/28/3/Integrated Circuit
+DEF AS7C256C-15PCN IC 0 30 Y Y 1 F N
+F0 "IC" 950 300 50 H V L CNN
+F1 "AS7C256C-15PCN" 950 200 50 H V L CNN
+F2 "DIP787W46P254L3537H533Q28N" 950 100 50 H I L CNN
+F3 "" 950 0 50 H I L CNN
+F4 "SRAM 256K, SRAM, 32K x 8, 5V, 28pin PDIP, 15ns, Commercial Temp, C Die" 950 -100 50 H I L CNN "Description"
+F5 "5.334" 950 -200 50 H I L CNN "Height"
+F6 "" 950 -300 50 H I L CNN "Mouser Part Number"
+F7 "" 950 -400 50 H I L CNN "Mouser Price/Stock"
+F8 "Alliance Memory" 950 -500 50 H I L CNN "Manufacturer_Name"
+F9 "AS7C256C-15PCN" 950 -600 50 H I L CNN "Manufacturer_Part_Number"
+DRAW
+X A14 1 0 0 200 R 50 50 0 0 P
+X A12 2 0 -100 200 R 50 50 0 0 P
+X A7 3 0 -200 200 R 50 50 0 0 P
+X A6 4 0 -300 200 R 50 50 0 0 P
+X A5 5 0 -400 200 R 50 50 0 0 P
+X A4 6 0 -500 200 R 50 50 0 0 P
+X A3 7 0 -600 200 R 50 50 0 0 P
+X A2 8 0 -700 200 R 50 50 0 0 P
+X A1 9 0 -800 200 R 50 50 0 0 P
+X A0 10 0 -900 200 R 50 50 0 0 P
+X I/O1 11 0 -1000 200 R 50 50 0 0 P
+X I/O2 12 0 -1100 200 R 50 50 0 0 P
+X I/O3 13 0 -1200 200 R 50 50 0 0 P
+X VSS 14 0 -1300 200 R 50 50 0 0 P
+X VCC 28 1100 0 200 L 50 50 0 0 P
+X WE# 27 1100 -100 200 L 50 50 0 0 P
+X A13 26 1100 -200 200 L 50 50 0 0 P
+X A8 25 1100 -300 200 L 50 50 0 0 P
+X A9 24 1100 -400 200 L 50 50 0 0 P
+X A11 23 1100 -500 200 L 50 50 0 0 P
+X OE# 22 1100 -600 200 L 50 50 0 0 P
+X A10 21 1100 -700 200 L 50 50 0 0 P
+X CE# 20 1100 -800 200 L 50 50 0 0 P
+X I/O8 19 1100 -900 200 L 50 50 0 0 P
+X I/O7 18 1100 -1000 200 L 50 50 0 0 P
+X I/O6 17 1100 -1100 200 L 50 50 0 0 P
+X I/O5 16 1100 -1200 200 L 50 50 0 0 P
+X I/O4 15 1100 -1300 200 L 50 50 0 0 P
+P 5 0 1 6 200 100 900 100 900 -1400 200 -1400 200 100 N
+ENDDRAW
+ENDDEF
+#
+#End Library
--- a/mouser_library/SamacSys_Parts.pretty/DIP787W46P254L3537H533Q28N.kicad_mod
+++ b/mouser_library/SamacSys_Parts.pretty/DIP787W46P254L3537H533Q28N.kicad_mod
@@ -0,0 +1,57 @@
+(module "DIP787W46P254L3537H533Q28N" (layer F.Cu)
+  (descr "28-pin 300mil PDIP Package")
+  (tags "Integrated Circuit")
+  (fp_text reference IC** (at 0 0) (layer F.SilkS)
+    (effects (font (size 1.27 1.27) (thickness 0.254)))
+  )
+  (fp_text user %R (at 0 0) (layer F.Fab)
+    (effects (font (size 1.27 1.27) (thickness 0.254)))
+  )
+  (fp_text value "DIP787W46P254L3537H533Q28N" (at 0 0) (layer F.SilkS) hide
+    (effects (font (size 1.27 1.27) (thickness 0.254)))
+  )
+  (fp_line (start -4.716 -18.03) (end 4.716 -18.03) (layer F.CrtYd) (width 0.05))
+  (fp_line (start 4.716 -18.03) (end 4.716 18.03) (layer F.CrtYd) (width 0.05))
+  (fp_line (start 4.716 18.03) (end -4.716 18.03) (layer F.CrtYd) (width 0.05))
+  (fp_line (start -4.716 18.03) (end -4.716 -18.03) (layer F.CrtYd) (width 0.05))
+  (fp_line (start -3.721 -17.78) (end 3.721 -17.78) (layer F.Fab) (width 0.1))
+  (fp_line (start 3.721 -17.78) (end 3.721 17.78) (layer F.Fab) (width 0.1))
+  (fp_line (start 3.721 17.78) (end -3.721 17.78) (layer F.Fab) (width 0.1))
+  (fp_line (start -3.721 17.78) (end -3.721 -17.78) (layer F.Fab) (width 0.1))
+  (fp_line (start -3.721 -16.51) (end -2.451 -17.78) (layer F.Fab) (width 0.1))
+  (fp_line (start -4.466 -17.78) (end 3.721 -17.78) (layer F.SilkS) (width 0.2))
+  (fp_line (start -3.721 17.78) (end 3.721 17.78) (layer F.SilkS) (width 0.2))
+  (pad 1 thru_hole rect (at -3.937 -16.51) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 2 thru_hole circle (at -3.937 -13.97) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 3 thru_hole circle (at -3.937 -11.43) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 4 thru_hole circle (at -3.937 -8.89) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 5 thru_hole circle (at -3.937 -6.35) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 6 thru_hole circle (at -3.937 -3.81) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 7 thru_hole circle (at -3.937 -1.27) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 8 thru_hole circle (at -3.937 1.27) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 9 thru_hole circle (at -3.937 3.81) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 10 thru_hole circle (at -3.937 6.35) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 11 thru_hole circle (at -3.937 8.89) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 12 thru_hole circle (at -3.937 11.43) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 13 thru_hole circle (at -3.937 13.97) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 14 thru_hole circle (at -3.937 16.51) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 15 thru_hole circle (at 3.937 16.51) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 16 thru_hole circle (at 3.937 13.97) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 17 thru_hole circle (at 3.937 11.43) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 18 thru_hole circle (at 3.937 8.89) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 19 thru_hole circle (at 3.937 6.35) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 20 thru_hole circle (at 3.937 3.81) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 21 thru_hole circle (at 3.937 1.27) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 22 thru_hole circle (at 3.937 -1.27) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 23 thru_hole circle (at 3.937 -3.81) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 24 thru_hole circle (at 3.937 -6.35) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 25 thru_hole circle (at 3.937 -8.89) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 26 thru_hole circle (at 3.937 -11.43) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 27 thru_hole circle (at 3.937 -13.97) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (pad 28 thru_hole circle (at 3.937 -16.51) (size 1.057 1.057) (drill 0.657) (layers *.Cu *.Mask))
+  (model "C:\\Users\\Maxime Vorwerk\\Documents\\KiCad\\MouserLibrary\\SamacSys_Parts.3dshapes\\AS7C256C-15PCN.stp"
+    (at (xyz 0 0 0))
+    (scale (xyz 1 1 1))
+    (rotate (xyz 0 0 0))
+  )
+)
--- a/mouser_library/SamacSys_Parts.pretty/NE555DR.kicad_mod
+++ b/mouser_library/SamacSys_Parts.pretty/NE555DR.kicad_mod
@@ -0,0 +1,38 @@
+(module SOIC127P600X175-8N (layer F.Cu)
+(descr "D (R-PDSO-G8)")
+  (tags "Integrated Circuit")
+  (attr smd)
+  (fp_text reference IC** (at 0 0) (layer F.SilkS)
+    (effects (font (size 1.27 1.27) (thickness 0.254)))
+  )
+  (fp_text value SOIC127P600X175-8N (at 0 0)(layer F.SilkS) hide
+    (effects (font (size 1.27 1.27) (thickness 0.254)))
+  )
+  (fp_line (start -3.725 -2.75) (end 3.725 -2.75) (layer Dwgs.User) (width 0.05))
+  (fp_line (start 3.725 -2.75) (end 3.725 2.75) (layer Dwgs.User) (width 0.05))
+  (fp_line (start 3.725 2.75) (end -3.725 2.75) (layer Dwgs.User) (width 0.05))
+  (fp_line (start -3.725 2.75) (end -3.725 -2.75) (layer Dwgs.User) (width 0.05))
+  (fp_line (start -1.95 -2.45) (end 1.95 -2.45) (layer Dwgs.User) (width 0.1))
+  (fp_line (start 1.95 -2.45) (end 1.95 2.45) (layer Dwgs.User) (width 0.1))
+  (fp_line (start 1.95 2.45) (end -1.95 2.45) (layer Dwgs.User) (width 0.1))
+  (fp_line (start -1.95 2.45) (end -1.95 -2.45) (layer Dwgs.User) (width 0.1))
+  (fp_line (start -1.95 -1.18) (end -0.68 -2.45) (layer Dwgs.User) (width 0.1))
+  (fp_line (start -1.6 -2.45) (end 1.6 -2.45) (layer F.SilkS) (width 0.2))
+  (fp_line (start 1.6 -2.45) (end 1.6 2.45) (layer F.SilkS) (width 0.2))
+  (fp_line (start 1.6 2.45) (end -1.6 2.45) (layer F.SilkS) (width 0.2))
+  (fp_line (start -1.6 2.45) (end -1.6 -2.45) (layer F.SilkS) (width 0.2))
+  (fp_line (start -3.475 -2.58) (end -1.95 -2.58) (layer F.SilkS) (width 0.2))
+  (pad 1 smd rect (at -2.712 -1.905 90) (size 0.65 1.525) (layers F.Cu F.Paste))
+  (pad 2 smd rect (at -2.712 -0.635 90) (size 0.65 1.525) (layers F.Cu F.Paste))
+  (pad 3 smd rect (at -2.712 0.635 90) (size 0.65 1.525) (layers F.Cu F.Paste))
+  (pad 4 smd rect (at -2.712 1.905 90) (size 0.65 1.525) (layers F.Cu F.Paste))
+  (pad 5 smd rect (at 2.712 1.905 90) (size 0.65 1.525) (layers F.Cu F.Paste))
+  (pad 6 smd rect (at 2.712 0.635 90) (size 0.65 1.525) (layers F.Cu F.Paste))
+  (pad 7 smd rect (at 2.712 -0.635 90) (size 0.65 1.525) (layers F.Cu F.Paste))
+  (pad 8 smd rect (at 2.712 -1.905 90) (size 0.65 1.525) (layers F.Cu F.Paste))
+  (model "C:\\Users\\Maxime Vorwerk\\Documents\\KiCad\\MouserLibrary\\SamacSys_Parts.3dshapes\\NE555DR.stp"
+    (at(xyz 0 0 0))
+    (scale (xyz 1 1 1))
+    (rotate(xyz 0 0 0))
+  )
+)
--- a/notes/arduino.md
+++ b/notes/arduino.md
@@ -0,0 +1,14 @@
+# Arduino Board
+## Capabilities
+- debugging board
+- access to address, data lines + other
+- CPU control lines
+
+## Debugging
+- halt CPU
+- read/write memory
+- get/set paging buffer
+
+## Design
+- [Mega2560](../datasheets/Mega2650PRO.pdf) Arduino Mega compatible board
+- using [ATmega2560](../datasheets/ATmega640-1280-1281-2560-2561.pdf)
--- a/notes/color-video.md
+++ b/notes/color-video.md
@@ -0,0 +1,6 @@
+# Color Video
+- [VGA](./vga.md)
+- 307&thinsp;200/0x4&thinsp;B000 Bytes needed
+- 10\*32K RAM chips ([AS7C256C-15PCN](../datasheets/AS7C256C-15PCN.pdf))
+- consider: memory needs to be duplicate
+- [TR9C1710](../datasheets/tr9c1710.pdf)
--- a/notes/cpu.md
+++ b/notes/cpu.md
@@ -0,0 +1,16 @@
+# CPU board
+
+## Components
+- CPU: [W65C02](../datasheets/w65c02s.pdf)
+- RAM: [LY62256PL-5LL](../datasheets/LY62256PL-55LL.pdf)
+- ROM: [AT28C64B](../datasheets/AT28C64B.pdf)
+- Register: [74HC377](../datasheets/74HC_HCT377.pdf)
+
+## Register
+- Address 0x5FFF/0b0101_1111_1111_1111
+- decode using [74HC20](../datasheets/74HC20.pdf), [74HC00](../datasheets/74hc00.pdf) 
+- $b_{15},\dots,b_0$
+- $\overline E=\neg(b_0\land b_1\land b_2\land b_3)\land\neg(b_4\land b_5\land b_6\land b_7)\land\neg(b_8\land b_9\land b_{10}\land b_{11})\land\neg(b_{12}\land b_{14})\land (b_{13}\lor b_{15})$
+
+## Timings
+- PHI2 target: 10MHz -> 100ns
--- a/notes/ethernet.md
+++ b/notes/ethernet.md
@@ -0,0 +1,2 @@
+# Ethernet
+- [ENC28J60](./../datasheets/ENC28J60.pdf)
--- a/notes/input-output.md
+++ b/notes/input-output.md
@@ -0,0 +1,5 @@
+# I/O
+- [Intel-P8254](../datasheets/Intel-P8254.pdf) (Programmable Interval Timer)
+- [NEC-uPB8214C](../datasheets/NEC-uPB8214C.pdf) (Priority Interrupt Controller)
+- [6522](../datasheets/w65c02s.pdf) (VIA)
+- [6551](../datasheets/w65c51n.pdf) (ACIA)
--- a/notes/memory-layout.md
+++ b/notes/memory-layout.md
@@ -0,0 +1,34 @@
+# Memory Layout
+- bank switching using 8-Bit register
+- top 32K remain untouched
+
+# [CPU](./cpu.md)
+| start  | end    | use                     |
+| :----- | :----- | :---------------------- |
+| 0x0000 | 0x5FFE | RAM                     |
+| 0x5FFF | 0x5FFF | bank switching register |
+| 0x6000 | 0xDFFF | --- to be mapped ---    |
+| 0xE000 | 0xFFFF | ROM                     |
+
+# I/O (0x00)
+| start  | end    | use |
+| :----- | :----- | :-- |
+| 0x6000 | 0xDFFF | I/O |
+
+# [Persistent Memory](./persistent-memory.md) (0x01)
+| start  | end    | use     |
+| :----- | :----- | :------ |
+| 0x6000 | 0xDFFF | storage |
+
+# [Monochrome Video](./monochrome-video.md) (0x0E, 0x0F)
+| start  | end    | use               |
+| :----- | :----- | :---------------- |
+| 0x6000 | 0xAAFF | VRAM              |
+| 0xC000 | 0xDFFF | auxilliary memory |
+
+# [Color Video](./color-video.md) (0x10-0x19)
+| start  | end    | use               | bank      |
+| :----- | :----- | :---------------- | :-------- |
+| 0x6000 | 0xDFFF | VRAM              | 0x10-0x18 |
+| 0x6000 | 0x9FFF | VRAM              | 0x19      |
+| 0xA000 | 0xDFFF | auxilliary memory | 0x19      |
--- a/notes/monochrome-video.md
+++ b/notes/monochrome-video.md
@@ -0,0 +1,14 @@
+# Monochrome Video
+- [VGA](./vga.md)
+
+- need 307&thinsp;200 bits => 38&thinsp;400/0x9600 Bytes 
+- 8K character memory
+
+- 1x 64K RAM
+- split in half
+- each half into page (0x0000 - 0x4AFF)
+- map character memory into top (0x6000 - 0x7FFF)
+- offset of 0x6000 into memory bus -> (0x6000 - 0xAAFF), (0xC000 - 0xDFFF)
+
+## Design
+- derive CS from bank register, leave LSB free -> wire to MSB of VRAM address
--- a/notes/persistent-memory.md
+++ b/notes/persistent-memory.md
@@ -0,0 +1,2 @@
+# Memory
+- maybe implement filesystem
--- a/notes/vga.md
+++ b/notes/vga.md
@@ -0,0 +1,29 @@
+# VGA ([tinyVGA](http://www.tinyvga.com/vga-timing/640x480@60Hz))
+## Timings
+### General Timings
+| Attribute           | Value       |
+| :------------------ | :---------- |
+| Screan refresh rate | 60Hz        |
+| Vertical refresh    | 31.46875kHz |
+| Pixel frequency     | 25.175 MHz  |
+
+### Horizontal Timings (line)
+| Scanline part | Pixels | Time [us]        |
+| :------------ | :----- | :--------------- |
+| Visible area  | 640    | 25.422045680238  |
+| Front porch   | 16     | 0.63555114200596 |
+| Sync Pulse    | 96     | 3.8133068520357  |
+| Back Porch    | 48     | 1.9066534260179  |
+| Whole line    | 800    | 31.777557100298  |
+
+### Vertical timing (frame)
+| Frame part   | Lines | Time [ms]         |
+| :----------- | :---- | :---------------- |
+| Visible Area | 480   | 15.253227408143   |
+| Front porch  | 10    | 0.31777557100298  |
+| Sync pulse   | 2     | 0.063555114200596 |
+| Back porch   | 33    | 1.0486593843098   |
+| Whole frame  | 525   | 16.683217477656   |
+
+## Additional Data
+- 640*480 = 307&thinsp;200
Author	SHA1	Message	Date
THEON-1	97883489e1	changes	2025-12-03 19:10:16 +01:00
THEON-1	0eb19921a6	updated gitignore	2025-12-01 11:21:21 +01:00
THEON-1	b65ced1368	more notes + datasheets	2025-10-26 00:59:27 +02:00
THEON-1	d02300ef8e	ethernet idea	2025-10-25 20:13:41 +02:00
THEON-1	f5b2c0427c	some arduino footprint changes, final	2025-10-23 22:15:23 +02:00
THEON-1	c37d0a68ad	changed memory layout, ram needs to be where the stack will be	2025-10-23 22:15:02 +02:00
THEON-1	ff042a6a6d	added mouser lib + some plugins	2025-10-20 22:46:12 +02:00
THEON-1	b66a9e34f4	added bank switch to memory layout	2025-10-20 22:40:30 +02:00
THEON-1	3953de44c9	added oscillator datasheet	2025-10-20 22:17:03 +02:00
THEON-1	e7d73542df	some brainstorming	2025-10-20 19:16:23 +02:00
THEON-1	91b9cf9072	finished color video memory layout	2025-10-20 17:22:45 +02:00
THEON-1	8f64d0ac9c	experiment	2025-10-20 17:11:58 +02:00
THEON-1	17aac8c492	added AS7C256C-15PCN	2025-10-20 17:07:13 +02:00
THEON-1	ebe0720627	notes	2025-10-20 17:03:59 +02:00
THEON-1	e7fdd945b5	Datasheets	2025-10-20 17:03:53 +02:00
THEON-1	80a2daf389	added preliminary Mega2560Pro footprint	2025-10-19 11:47:09 +02:00
THEON-1	9d94e9de04	changes	2025-10-18 18:44:30 +02:00
THEON-1	87ad1f3bb1	added board schematics	2025-10-17 21:41:17 +02:00
THEON-1	af673f9a83	W65C51 ACIA	2025-10-17 21:36:57 +02:00
THEON-1	7112fff178	some changes	2025-10-17 19:00:09 +02:00