Hmmm... I thought the Explorer 16 was just for PIC24/33. 

Microchip's dev-tool selector listed their PICDEM board as the only
demo-board option for the 18F4550.  Do you have any info to the contrary?





Martin Klingensmith wrote:
> 
> Today I received an Explorer 16 ("100 pin" version)
> 
> I am trying to load the on-board 18LF4550 with the pickit 2 firmware:
> (from datasheet:)
> 
> To update the USB firmware:
> 1. If not done already, download the latest PICkit 2 operating system
> software from
> the Microchip web site.
> 2. On the Explorer 16 board, install a jumper between pins 9 and 10 of
> the JTAG
> connector (J13).
> 3. Press and release MCLR (S1). This places the USB subsystem in
> Bootloader
> mode and makes it ready to accept new code.
> 4. Connect the Explorer 16 board to the PC via a standard USB cable.
> 5. Launch the PICkit 2 programmer software. From the menu bar, select
> Tools > Download PICKit 2 Operating System (Figure B-1).
> 
> I followed the directions to the letter and I can't get Windows / PICkit
> software / the board to communicate. I even tried it about 12 times to
> make sure I'm insane.
> 
> Has anyone gotten this to work, and did you have to do anything not
> listed in the directions?
> The switch S2 is in "PIM" position (it shouldn't matter AFAIK)
> I have a jumper going from pin 9 to 10 on the JTAG header
> 
> When I plug in the USB cable, the device manager in windows does not
> update nor show any new devices - should it?
> The PICkit2 software says that it cannot communicate with the hardware.
> 
> Thanks for any advice. I've RTFM.
> 
> -
> Martin
> -- 
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> 
> 

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