Changed CPU socket to be 2x20 x2. Added expansion slots.

Also added 3D model for the SD card.

Author: thejpster

Kicad/Models/145638009211859+--3DModel-STEP-56544.STEP

@@ -1130,6 +1130,38 @@ X SDMMC_DAT1 4.8 -700 -500 200 R 50 50 5 1 B
 ENDDRAW
 ENDDEF
 #
+# Neotron-Common-Hardware_Neotron-Expansion-Slot
+#
+DEF Neotron-Common-Hardware_Neotron-Expansion-Slot J 0 40 Y Y 1 F N
+F0 "J" 0 -700 50 H V C CNN
+F1 "Neotron-Common-Hardware_Neotron-Expansion-Slot" -50 600 50 H V C CNN
+F2 "Neotron-Common-Hardware:Neotron-Expansion-Slot" 0 700 50 H I C CNN
+F3 "" 450 400 50 H I C CNN
+DRAW
+S -500 550 450 -650 0 1 0 f
+X SPI_COPI 1 -600 450 100 R 50 50 0 0 I
+X I2C_SCL 10 550 450 100 L 50 50 0 0 B
+X EEPROM_ADDR0 11 550 -350 100 L 50 50 0 0 I
+X EEPROM_ADDR1 12 550 -450 100 L 50 50 0 0 I
+X EEPROM_ADDR2 13 550 -550 100 L 50 50 0 0 I
+X GND 14 -600 -350 100 R 50 50 0 0 W
+X 5V 15 550 150 100 L 50 50 0 0 W
+X 5V 16 550 50 100 L 50 50 0 0 W
+X GND 17 -600 -450 100 R 50 50 0 0 W
+X 3V3 18 550 -50 100 L 50 50 0 0 W
+X GND 19 -600 -550 100 R 50 50 0 0 W
+X GND 2 -600 -50 100 R 50 50 0 0 W
+X 3V3 20 550 -150 100 L 50 50 0 0 W
+X SPI_CIPO 3 -600 350 100 R 50 50 0 0 O
+X GND 4 -600 -150 100 R 50 50 0 0 W
+X SPI_CLK 5 -600 250 100 R 50 50 0 0 I
+X GND 6 -600 -250 100 R 50 50 0 0 W
+X ~SPI_CS 7 -600 150 100 R 50 50 0 0 I
+X ~IRQ 8 -600 50 100 R 50 50 0 0 O
+X I2C_SDA 9 550 350 100 L 50 50 0 0 B
+ENDDRAW
+ENDDEF
+#
 # Neotron-Common-Hardware_STX-4335-5BGP-S1
 #
 DEF Neotron-Common-Hardware_STX-4335-5BGP-S1 U 0 40 Y Y 1 F N

Kicad/Models/5-5530843-0--3DModel-STEP-1.STEP

@@ -37,10 +37,14 @@ F https://www.nuvoton.com/resource-files/DS_NUC029_EN_Rev1.06.pdf
 $ENDCMP
 #
 $CMP Neotron-CPU
-D Neotron Processor Card
+D Processor Card Slot for Neotron Motherboards
 F https://github.com/neotron-compute
 $ENDCMP
 #
+$CMP Neotron-Expansion-Slot
+D Expansion slot for Neotron Motherboards
+$ENDCMP
+#
 $CMP STM811
 D Reset circuit
 F https://www.st.com/content/ccc/resource/technical/document/datasheet/cd/e2/ab/27/7d/5d/44/41/CD00003591.pdf/files/CD00003591.pdf/jcr:content/translations/en.CD00003591.pdf

Kicad/Neotron-Common-Hardware-cache.lib

@@ -357,6 +357,38 @@ X SDMMC_DAT1 4.8 -700 -500 200 R 50 50 5 1 B
 ENDDRAW
 ENDDEF
 #
+# Neotron-Expansion-Slot
+#
+DEF Neotron-Expansion-Slot J 0 40 Y Y 1 F N
+F0 "J" 0 -700 50 H V C CNN
+F1 "Neotron-Expansion-Slot" -50 600 50 H V C CNN
+F2 "Neotron-Common-Hardware:Neotron-Expansion-Slot" 0 700 50 H I C CNN
+F3 "" 450 400 50 H I C CNN
+DRAW
+S -500 550 450 -650 0 1 0 f
+X SPI_COPI 1 -600 450 100 R 50 50 0 0 I
+X I2C_SCL 10 550 450 100 L 50 50 0 0 B
+X EEPROM_ADDR0 11 550 -350 100 L 50 50 0 0 I
+X EEPROM_ADDR1 12 550 -450 100 L 50 50 0 0 I
+X EEPROM_ADDR2 13 550 -550 100 L 50 50 0 0 I
+X GND 14 -600 -350 100 R 50 50 0 0 W
+X 5V 15 550 150 100 L 50 50 0 0 W
+X 5V 16 550 50 100 L 50 50 0 0 W
+X GND 17 -600 -450 100 R 50 50 0 0 W
+X 3V3 18 550 -50 100 L 50 50 0 0 W
+X GND 19 -600 -550 100 R 50 50 0 0 W
+X GND 2 -600 -50 100 R 50 50 0 0 W
+X 3V3 20 550 -150 100 L 50 50 0 0 W
+X SPI_CIPO 3 -600 350 100 R 50 50 0 0 O
+X GND 4 -600 -150 100 R 50 50 0 0 W
+X SPI_CLK 5 -600 250 100 R 50 50 0 0 I
+X GND 6 -600 -250 100 R 50 50 0 0 W
+X ~SPI_CS 7 -600 150 100 R 50 50 0 0 I
+X ~IRQ 8 -600 50 100 R 50 50 0 0 O
+X I2C_SDA 9 550 350 100 L 50 50 0 0 B
+ENDDRAW
+ENDDEF
+#
 # STM811
 #
 DEF STM811 U 0 40 Y Y 1 F N

Kicad/Neotron-Common-Hardware.dcm

@@ -0,0 +1,42 @@
+(module Neotron-Expansion-Slot (layer F.Cu) (tedit 5FECE99F)
+  (descr "Designed to match TE 5-5530843-0 card-edge connector")
+  (fp_text reference REF** (at 0 -3.81) (layer F.SilkS)
+    (effects (font (size 1 1) (thickness 0.15)))
+  )
+  (fp_text value Neotron-Expansion-Slot (at 0 -6.35) (layer F.Fab) hide
+    (effects (font (size 1 1) (thickness 0.15)))
+  )
+  (fp_line (start 5.08 -2.54) (end -5.08 -2.54) (layer F.CrtYd) (width 0.12))
+  (fp_line (start 5.08 27.94) (end 5.08 -2.54) (layer F.CrtYd) (width 0.12))
+  (fp_line (start -5.08 27.94) (end 5.08 27.94) (layer F.CrtYd) (width 0.12))
+  (fp_line (start -5.08 -2.54) (end -5.08 27.94) (layer F.CrtYd) (width 0.12))
+  (fp_line (start 3.81 -1.27) (end -3.81 -1.27) (layer F.SilkS) (width 0.12))
+  (fp_line (start 3.81 25.4) (end 3.81 -1.27) (layer F.SilkS) (width 0.12))
+  (fp_line (start -3.81 25.4) (end 3.81 25.4) (layer F.SilkS) (width 0.12))
+  (fp_line (start -3.81 -1.27) (end -3.81 25.4) (layer F.SilkS) (width 0.12))
+  (pad 1 thru_hole circle (at -2.4257 0) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 2 thru_hole circle (at 2.4257 0) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 3 thru_hole circle (at -2.4257 2.54) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 4 thru_hole circle (at 2.4257 2.54) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 5 thru_hole circle (at -2.4257 5.08) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 6 thru_hole circle (at 2.4257 5.08) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 7 thru_hole circle (at -2.4257 7.62) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 8 thru_hole circle (at 2.4257 7.62) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 9 thru_hole circle (at -2.4257 10.16) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 10 thru_hole circle (at 2.4257 10.16) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 11 thru_hole circle (at -2.4257 12.7) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 12 thru_hole circle (at 2.4257 12.7) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 13 thru_hole circle (at -2.4257 15.24) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 14 thru_hole circle (at 2.4257 15.24) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 15 thru_hole circle (at -2.4257 17.78) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 16 thru_hole circle (at 2.4257 17.78) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 17 thru_hole circle (at -2.4257 20.32) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 18 thru_hole circle (at 2.4257 20.32) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 19 thru_hole circle (at -2.4257 22.86) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (pad 20 thru_hole circle (at 2.4257 22.86) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (model ${KIPRJMOD}/Models/5-5530843-0--3DModel-STEP-1.STEP
+    (offset (xyz 0 -11.4 14))
+    (scale (xyz 1 1 1))
+    (rotate (xyz 0 0 90))
+  )
+)

Kicad/Neotron-Common-Hardware.kicad_pcb

@@ -1,4 +1,4 @@
-(module Neotron_CPU_Socket (layer F.Cu) (tedit 5FEC909A)
+(module Neotron_CPU_Socket (layer F.Cu) (tedit 5FECED54)
   (descr "Socket for a Neotron CPU Card")
   (fp_text reference REF** (at 21.59 -21.59) (layer F.SilkS)
     (effects (font (size 1 1) (thickness 0.15)))
@@ -86,4 +86,14 @@
   (pad 2.5 thru_hole circle (at -13.97 -16.51 90) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
   (pad 2.4 thru_hole circle (at -16.51 -16.51 90) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
   (pad 2.3 thru_hole circle (at -19.05 -16.51 90) (size 1.524 1.524) (drill 0.762) (layers *.Cu *.Mask))
+  (model ${KISYS3DMOD}/Connector_PinSocket_2.54mm.3dshapes/PinSocket_2x20_P2.54mm_Vertical.step
+    (offset (xyz 24.13 -19.0754 0))
+    (scale (xyz 1 1 1))
+    (rotate (xyz 0 0 90))
+  )
+  (model ${KISYS3DMOD}/Connector_PinSocket_2.54mm.3dshapes/PinSocket_2x20_P2.54mm_Vertical.step
+    (offset (xyz 24.13 16.5354 0))
+    (scale (xyz 1 1 1))
+    (rotate (xyz 0 0 90))
+  )
 )