Group 10 – Extensible Digital Logic Educational Tool PCB Design
Block Diagram
Overall considerations Mounting breadboard Headers from GP I/O signals Protection circuit for GP I/O pins efficiently placed and in visually obvious order
Pic18f4455 considerations Oscillator close to 18F4455 Oscillator trace lengths same Vusb capacitor close to 18F4455 All pins to immediate test/point header
Power supply considerations Far from noise sensitive components Power and ground traces 100 mil Tied to USB GND and +5V(?)