Facebook
Google
GitHub
Linkedin
Hi all
I have been playing with the old 16f84 etc for some time and I have a normal serial programmer..
I have mostly been using C to code but I'm now learning ASM full force ;P
I did a monkey job building 10 circuits using a 18F4455, I only did the etching and building and just pushed a hex file.. (just to earn some money) for a local company here in Iceland.. So I have like 10x 18F4455 left to play with.
I would like to build a prototype board using a 18F4455 and I really would like to be able to push code via serial port so I can do some trial by error coding.
aaand.. I don't want to spend money ordering some ready made board..
I have the max232 chip.. so It's fairly easy for me to build the board.. it's just the bootloader that I need.
I can see on microchip http://ww1.microchip.com/downloads/en/DeviceDoc/srlbootl.zip that there is a serial bootloader ready:
; bootloader for the PIC18F252/452
;
; DESCRIPTION:
; This is an example of a bootloader routine for the PIC18FX52. The
; PICDEM2 was used for development. A 10MHz clock was selected.
;
So, now there is the question:
does anyone here know If this should just work directly on the 4455 ..or do I have to do alot of reading and looking to change registers / outputs
or do you guys have a magic link to some .hex bootloader for this chip ?
- Benni
I have been playing with the old 16f84 etc for some time and I have a normal serial programmer..
I have mostly been using C to code but I'm now learning ASM full force ;P
I did a monkey job building 10 circuits using a 18F4455, I only did the etching and building and just pushed a hex file.. (just to earn some money) for a local company here in Iceland.. So I have like 10x 18F4455 left to play with.
I would like to build a prototype board using a 18F4455 and I really would like to be able to push code via serial port so I can do some trial by error coding.
aaand.. I don't want to spend money ordering some ready made board..
I have the max232 chip.. so It's fairly easy for me to build the board.. it's just the bootloader that I need.
I can see on microchip http://ww1.microchip.com/downloads/en/DeviceDoc/srlbootl.zip that there is a serial bootloader ready:
; bootloader for the PIC18F252/452
;
; DESCRIPTION:
; This is an example of a bootloader routine for the PIC18FX52. The
; PICDEM2 was used for development. A 10MHz clock was selected.
;
So, now there is the question:
does anyone here know If this should just work directly on the 4455 ..or do I have to do alot of reading and looking to change registers / outputs
or do you guys have a magic link to some .hex bootloader for this chip ?
- Benni
