Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: benji on March 13, 2008, 07:56:43 AM

Title: PIC18F4520 programmer
Post by: benji on March 13, 2008, 07:56:43 AM

hey folks,there is a friend of mine who is using htis micro in a project  and he needs to download his programs into it.
anybody has a schematic for a programmer circuit that can be made?and what software is used for such a micro?

p.s.i did check with ponyprog and it doesnt support this processor

Title: Re: PIC18F4520 programmer
Post by: paulstreats on March 13, 2008, 10:40:18 AM

there is a circuit called "jdm programmer" that works. if you search www.instructables.com for the term "business card" there is a jdm circuit there that fits onto a business card sized board - you need a serial port on your computer to use it. I made this circuit and it works perfectly, it is an icsp circuit (you need a seperate 5v power soruce when programming too if you have stuff plugged in already like servo etc..).

I use ic-prog to download it onto pics, and it supports the 18f4520 because ive used it before. You are best off setting the fuse bits in code(like bor, wdt, osc settings) because ic-prog doesnt work well with pic fuses, sometimes you can use check boxes in ic-prog but it doesnt show them all for the larger pics.

Title: Re: PIC18F4520 programmer
Post by: benji on March 13, 2008, 10:43:23 AM

thanks man, ill be checkin on this one