i want to build the ICD2(dspic programmer) which is in the HARDWARE AND TOOLS FORUM .
Can you write the code to connect usb port to the picf877, and control all functions of the ICD2?
if not then you must use the 18F4550 code. if it is not using ports D & E then you may find the code will port to a 18F2550. but your on your own as why reinvent the wheel. on cost alone the 4550 is cheaper than the 2550.