P8X Game System Prop Plug

by maccasoft.
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2 layer board of 3.05x1.45 inches (77.50x36.83 mm).
Shared on February 11th, 2017 12:21.

USB programming interface for the P8X Game System.

Seen by the operating system as two serial ports compatible with Parallax Prop-plug.

Windows

GPU_ICSP = COM15
CPU_ISCP = COM16

Linux

GPU_ICSP = /dev/ttyACM0
CPU_ISCP = /dev/ttyACM1

Note: Actual port numbers may vary depending on other USB devices plugged on the system.

Parts List

R1 = 220 ohm ¼ watt
R2 = 220 ohm ¼ watt
R3 = 220 ohm ¼ watt
R4 = 220 ohm ¼ watt
R5 = 33.000 ohm ¼ watt
R6 = 10.000 ohm ¼ watt
R7 = 10.000 ohm ¼ watt
R8 = 10.000 ohm ¼ watt
C1 = 100.000 pF poli
C2 = 10 uF 63v elettr.
C3 = 22 pF disc
C4 = 22 pF disc
C5 = 10.000 pF poli
DL1 = Red LED
DL2 = Yellow LED
DL3 = Yellow LED
DL4 = Green LED
XTAL1 = 12 MHz crystal
IC1 = PIC18F24J50
TR1 = Transistor BC547
CN1 = USB-B connector

PIC Firmware
https://github.com/maccasoft/p8x-propplug-firmware.git

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