ECPE-5 PIC Experimental PCB

Requirements

• $25 parts cost
• Support Wloader
• Allow in-circuit programming to allow Wloader to be programmed using Wist628
• PIC 16F877
• Crystal or ceramic resonator
• expansion connector for all un-used 16F877 pins (SIP, optional load)
• DB9 connector for direct connection to PC
• True RS-232 interface (MAX232 or equiv.)
• Reset switch
• Regulated 5v power (optional)
• 4-LEDs (1 minimum if necessary to meet parts cost)
• 2 switches (optional)

Concept

• Design PCB to support all functions and options listed.
• Load only those needed for the ECPE-5 lab- the other parts are for future labs, classes or individual experiments.
• Use un-programmed 16F877 microprocessors. Then use a Wist628 to program the 16F877.
• Minimum quantity 20-25 to minimize parts cost.
• Only thru-hole parts to ease hand assembly.

Lab

• Assemble kit
• Load Wloader
• Load and run test program via Wloader to demonstrate that the board is properly assembled
• Write program to flash LED
• Load and run the program