PIC 18f4550 PICDEM FS USB Demo Board

[yawijaya]

Hi,

I have 2 PICDEM FS USB demo board and am having a project in making a USB HID firmware for the board. There are some sample firmware from the latest microchip framework (v.2.5), and also one from Jan Axelson (lvr.com). Many of the firmware have claimed that they have been tested on the board i have. So I went on and compiled the one of the HID project using MPLAB IDE, and they compiled and built with no error. I then programmed the .HEX file to the board using the bootloader, and it also went smoothly. But after I reset the board, my laptop won't recognize it. Am i missing something over here? because I also tried with another project but none seems to work. Any help is appreciated! Thanks!

 

[wp100]

Hi,

Really not into USB but one problem that is often reported on the Microchip site is that certain laptops have problems supplying enough power through the usb port.

The usual solution is said to be using a separately powered usb hub to feed a good power line to the usb device.

 

[yawijaya]

Yep, it's part of the problem...there's coding issue i needed to solve but it's now working when plugged to PC..Thanks a lot