avi
New Member
Hi All,
I'm designing a new portable device and I would like to use the PIC18F2550 as a USB programming interface to a PIC18F452.
I've seen in the PICKIT or the PK2LITE circuits an analog circuit connected to ICD pin# 1.
I guess it produces the 12v for programming level (some uses the MAX662 instead).
my question is:
if I already have +15v in the circuit, can I use it instead? and don't build the analog part?
Another Question:
because I use the PIC18F2550 just as a USB programming interface, do I have to program it?
I've heard that I may not do it, the PIC18F2550 has internal program for this purpose . is it right??
TIA,
Avi.
I'm designing a new portable device and I would like to use the PIC18F2550 as a USB programming interface to a PIC18F452.
I've seen in the PICKIT or the PK2LITE circuits an analog circuit connected to ICD pin# 1.
I guess it produces the 12v for programming level (some uses the MAX662 instead).
my question is:
if I already have +15v in the circuit, can I use it instead? and don't build the analog part?
Another Question:
because I use the PIC18F2550 just as a USB programming interface, do I have to program it?
I've heard that I may not do it, the PIC18F2550 has internal program for this purpose . is it right??
TIA,
Avi.