Converting from PIC18F452 to PIC18F4550

[PJALM]

I managed to get all the exsisting code working now on the new pick but i had to remove the USB Descriptor files from the folder and remove all USB related code.

Is there a reason why this pic should behave differently when you enable the USB portion?

[yba2cuo3]

I managed to get all the exsisting code working now on the new pick but i had to remove the USB Descriptor files from the folder and remove all USB related code.

Is there a reason why this pic should behave differently when you enable the USB portion?

Interesting...

I'm attempting to convert to the 18F4550 as well. Obtained a PICDEM FS USB Demo Board which seems to work very well in demonstrating it's USB capabilities. With respect to using the Microchip USB Bootloader, did you have to make any changes to your PBP code to accomodate? Is DEFINE LOADER_USED 1 all that is still required? Previously, I used the TINY bootloader via serial port & everything worked perfectly with the 18F452. Looking to move up to the USB port now for programming my applications directly into the 18F4550; forget the serial port!

Any other advice you may want to share to ease this transition would be greatly appreciated.

Thks,

[PJALM]

Yes it took me a while to figure it out but this is what is needed to use the USB bootloader with PBP.

DEFINE LOADER_USED 1
DEFINE RESET_ORG 800h ' For Microchip USB Bootloader
DEFINE INTERRUPT_ORG 808h ' For Microchip USB Bootloader

[sjohansson]

Yes it took me a while to figure it out but this is what is needed to use the USB bootloader with PBP.

DEFINE LOADER_USED 1
DEFINE RESET_ORG 800h ' For Microchip USB Bootloader
DEFINE INTERRUPT_ORG 808h ' For Microchip USB Bootloader

Thank you very much for this information!!!

Stefan.