2550 and usb bootloader

Started by Lez June 25, 2007
Ok I'm having a little problem..........

i posted on this a while ago but then never had time to follow up, now
I have time I cant remember most of it.....

I'm wanting to put a boot loader into a 2550.

I have a programmer, so can do that the non-usb method to start.

I have tried one bootloader and I'm getting ''a usb device has been
detected'' but when I point XP to the microchip .inf file it says its
not the right one for the device !!!!

when I try to compile the microchip one it gives me lots of errors.

grrr.

Has anyone got the right hex (modified for a 2550 16mhz) for the
microchip inf files ?

OR

has anyone got some hex (I'm on a 16mhz xtal) and a app to allow me to bootload.

If not its back to the ICSP and winpic800.............
--- In p..., Lez wrote:

> I have tried one bootloader and I'm getting ''a usb device has been
> detected'' but when I point XP to the microchip .inf file it says its
> not the right one for the device !!!!

Check the 2550 code for its ID strings. Then, edit the .inf file to
match those ID strings. The 2450 on the 28 pin development board
works like a charm, I assume it is probably the same code. But if
Windows is complaining about a mismatch, it means that the PIC is
sending a manufacturer and/or device ID different from what is in
the .inf file. Assuming you are using the serial port emulation (the
easiest way) then the mchip .inf file should work.

--McD
> the .inf file. Assuming you are using the serial port emulation (the
> easiest way) then the mchip .inf file should work.

Yes looks like I blew wrong bootloader onto it

Just found a great USB demo on the melabs/picbasic forum, everything
ready to run for the 4550 / 2550, downloaded and working in 20 minutes
etc, all source in pic basic and VB