Merge pull request #125 from Neotron-Compute/replace-step-model

Replace STEP model

Author: thejpster

CHANGELOG.md

@@ -2,7 +2,8 @@
 
 # Unreleased Changes
 
-* None
+* Updated STEP model.
+* Added new top-down view to README.
 
 # [Version v1.0.0](https://github.com/Neotron-Compute/Neotron-Pico/releases/tag/v1.0.0)
 

Kicad/Models/Pico-R3.step

@@ -0,0 +1,3 @@
+(fp_lib_table
+  (lib (name "neotron-pico")(type "KiCad")(uri "${KIPRJMOD}/neotron-pico.pretty")(options "")(descr ""))
+)

Kicad/Models/SC0915--3DModel-STEP-56544.STEP

@@ -6110,8 +6110,8 @@
       (net 205 "unconnected-(U201-Pad43)") (pinfunction "SWDIO") (pintype "bidirectional+no_connect") (tstamp c9de9b79-4de8-4750-afbc-f8b493b090aa))
     (pad "43" smd rect locked (at 2.54 23.9 90) (size 3.5 1.7) (drill (offset -0.9 0)) (layers "F.Cu" "F.Mask")
       (net 205 "unconnected-(U201-Pad43)") (pinfunction "SWDIO") (pintype "bidirectional+no_connect") (tstamp e0e71a10-c24b-4ae9-bca4-64ce653774e7))
-    (model "${KIPRJMOD}/Models/Pico-R3.step"
-      (offset (xyz -10.4775 -25.5016 0))
+    (model "${KIPRJMOD}/Models/SC0915--3DModel-STEP-56544.STEP"
+      (offset (xyz 0 0 0))
       (scale (xyz 1 1 1))
       (rotate (xyz -90 0 0))
     )
@@ -20525,7 +20525,7 @@
   (zone (net 0) (net_name "") (layer "F.Cu") (tstamp 13b7bd75-ce5e-49f3-b78d-28d09ba33e66) (hatch edge 0.508)
     (connect_pads (clearance 0))
     (min_thickness 0.254)
-    (keepout (tracks not_allowed) (vias not_allowed) (pads not_allowed ) (copperpour allowed) (footprints allowed))
+    (keepout (tracks not_allowed) (vias not_allowed) (pads not_allowed) (copperpour allowed) (footprints allowed))
     (fill (thermal_gap 0.508) (thermal_bridge_width 0.508))
     (polygon
       (pts
@@ -20539,7 +20539,7 @@
   (zone (net 0) (net_name "") (layer "F.Cu") (tstamp 48175164-312a-4eea-95b1-7585516187b4) (hatch edge 0.508)
     (connect_pads (clearance 0))
     (min_thickness 0.254)
-    (keepout (tracks not_allowed) (vias not_allowed) (pads allowed ) (copperpour not_allowed) (footprints allowed))
+    (keepout (tracks not_allowed) (vias not_allowed) (pads allowed) (copperpour not_allowed) (footprints allowed))
     (fill (thermal_gap 0.508) (thermal_bridge_width 0.508))
     (polygon
       (pts

Kicad/fp-lib-table

@@ -38,7 +38,6 @@
       8,
       9,
       10,
-      11,
       12,
       13,
       14,

Kicad/neotron-pico.kicad_pcb

@@ -6,6 +6,8 @@ The Neotron Pico is based around the idea of the [Neotron-32](https://github.com
 
 ![3D PCB View](./neotron-pico.jpg)
 
+![Top-Down PCB View](./neotron-pico-top-3d.jpg)
+
 ## Design
 
 The Raspberry Pi Pico is the core of the Neotron Pico. It uses PIO statemachines to generate 12-bit Super VGA video, and digital 16 bit 48 kHz stereo audio. It also has both I²C and SPI buses. SPI chipselects and IRQs are handled by an SPI-to-GPIO expander. This provides eight chip-selects and eight IRQs, to support up to eight expansion slots or peripherals. The eight chip-selects can be globally disabled, allowing the Pico to talk to either the I/O exander, or the selected expansion slot. The board has an SD Card fitted in the 'Slot 1' position, and the Board Management Controller in the 'Slot 0' position, leaving 'Slot 2' through to 'Slot 7' available for expansion. Each expansion slot has both I²C and SPI, along with unique chip-select and IRQ signals.