pic

Tags: Electronic Circuit, Electronics, Microcontroller, PIC, RS232

This circuit can program any MicroChip processor – from 6 pins to 40 pins processors.The programmer supports: PIC12,PIC16,PIC18,dsPIC24 ,dsPIC30 families, and uses an ICSP header thus not requireing to remove the PIC from the circuit each time it needs to be programmed.

This circuit’s advantages are:

• an ICSP header fits all PIC kinds, while an on-board programmer needs difference sockets for different pics
• using ICSP and SMD components, this design significantly reduces the amount of holes which needs to be drilled.
• There is no need to remove the pic from the circuit your are building each time you need to program it (well, that’s what ICSP is all about, isn’t it?)

The circuit uses serial communication to burn the pic, and is compatible to any JDM software (i use PikLab \ PikDev).

Some Pictures

3D Model:

Built Circuit:

Circuit Schematics

(click on the image to view a post-script file with the schematics)

Components:

Annotation	Value
C1	100uF16V
C2	100uF16V
C3	100nF
D1	1N4148
D2	1N4148
D3	1N4148
D4	1N4148
D5	Z5V1
D6	Z6V2
D7	RED
J1	DB9
P1	ICSP
Q1	NPN
Q2	NPN
Q3	PNP
R1	1K5
R2	10K
R3	1K
R4	100
R5	10K
SW1	SPST

The Printed Circuit Board

• PCB (Copper)
• Silk Components

How to prepare your circuit to work with ICSP?

1. Isolate Vpp from the circuit by using a Schotkey diode and an R/C.
2. Isolate ICSP_Clock and ICSP_Data from the rest of the circuit (the isolation method is application specific)