libusb is a C library that provides generic access to USB devices. The hidapi library uses this to communicate with USB devices connected to the system.

Click here for libusb documentation

The user end program uses hidapi library for USB communications. Make sure that the same is installed.

Click here for library documentation.

The source code for the project is hosted on github here. 

To download using git clone, enter the following in a terminal window.

git clone https://github.com/Scarecrow1006/usb2multi

Or fork the current repository.  

You can also download .zip file for the project from the github link.

Keil uVIsion 4 is used as a cross compiler for LPC2148.

Latest version can be downloaded from website.

Navigate to .../usb2multi/firmware for the firmware project. Build using Keil and download using Flash magic or any similar software.

Navigate to .../usb2multi/user_end

Open main.c and chech the line where hidapi.h is included

#include "/usr/local/include/hidapi/hidapi.h"

 Change the path to the directory where hidapi is installed.

Compile using gcc

gcc -g main.c -o test -lhidapi-libusb
sudo ./test

Admin privileges are required for USB communications.

A bash script named run is included for ease.