Technical Report for Usb Data Acquisition card

Hi all

I want to write a technical report on usb data acquisition card which i made based on Pic18f4550 but i dont have an idea of writing it. The report should consist the abstract, block diagram of usb DAQ card and flowchart. The Daq card which i made has 8 analog i/p , 16 digital i/o and 2 pwm o/p. Please help me.

How are WE supposed to help you, if you don't post the full schematics, PCB art work, and code for your project?