pk2 lite / pickit2 lite / pickit2 clone using PIC18F4550

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bengaltiger

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Hi,

I am interested to build pk2 lite / pickit2 lite / pickit2 clone using PIC18F4550.

Looking for info / schematics / tuto.

if anybody has done this, please share your exp.

Thanks,
BT
 


Can i ask; why you want to use 18f4550 they are costly than 18f2550?
 
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    akey

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thanks foxyrick.

as I got 18f2550 from my colleague. so I dont have to buy.
as pin count is different with 2550 so looking for schema with 4550.

Thanks.
 

bengaltiger said:
as pin count is different with 2550 so looking for schema with 4550.
Click to expand...

Adapting a design to utilize a PIC18F4550 instead PIC18F2550 is usually a trivial task. Except for the additional I/0, an ECCP module and three more A/D channels, the PIC18F4550 is virtually identical in function to the PIC18F2550. Both devices also have the same amount of storage, Flash/RAM, and code written for the PIC18F2550 will often run on a PIC18F4550 without modification.

However, adapting a design the other direction, from a PIC18F4550 to PIC18F2550, could present some issues.

BigDog
 

bengaltiger said:
thanks foxyrick.

as I got 18f2550 from my colleague. so I dont have to buy.
as pin count is different with 2550 so looking for schema with 4550.

Thanks.
Click to expand...

Hi,

Just use a standard PK2 2550 clone diagram and wire your 4550 up using the pin labels eg RA1 rather than pin number.
Remember to connect all power pins on the 4550.

The Program code V023200.hex for the 2550 does not need modifying, it will program straight into the 4550, have done it myself.

There are countless references to PK2 clones in its forum, a simple search will show them, some have a pcb design.
 

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