DS41356B datasheet(13/54 Pages) MICROCHIP

13 / 54 page

LOW PIN COUNT USB

DEVELOPMENT KIT

USER’S GUIDE

DS41356B-page 9

2.1

INTRODUCTION

This section of the user’s guide will walk the user through a number of project labs that

will ease the development of original USB design applications. Labs are formatted so

that the user is guided through each project’s source code to uncomment or copy and

paste sections of code. This format was chosen to force the developer to explore sig-

nificant sections of the Framework and familiarize themselves with the overall structure

of the source files presented.

Lab files can be located in the folder C:\LPCUSBDK_Labs\Labx_files. Each lab

folder will contain both the source files for the labs and a folder containing the solutions

with working code.

Four labs are presented:

Project Lab 1 (Enumeration): This lab introduces the user to developing unique

descriptors in their own applications that will be used by the Host (PC) to

enumerate and ultimately configure the PIC18F14K50.

Project Lab 2 (HID Mouse): This lab expands on concepts learned in Project Lab

1 using the descriptors defined. The user will walk through the development of

application specific functions within the mouse.c firmware file. The end applica-

tion will behave like a Human Interface Device Class (HID) mouse by moving the

pointer on the PC screen.

Project Lab 3 (HID Keyboard): In this lab the user is required to alter the descrip-

tors to implement a HID keyboard-based application. The potentiometer on the

Low Pin Count USB Development Board is rotated to change the HID specifica-

tion unicode value transmitted through the USB to the PC that will print charac-

ters based on an ADC conversion.

Project Lab 4 (CDC Serial Emulator): Finally, the user will implement a

communication protocol converter using the Communication Device Class

(CDC) driver.

2.2

PREREQUISITES

These labs assume that the user:

Has completed the self-directed course “Getting Started with Microchip’s Low

Pin Count USB Solutions” provided on the accompanying CD.

Is familiar with the MPLAB IDE and C18 compiler.

Has some programming experience using the C language.

Is familiar with Microchip’s PIC18F family of microcontrollers.

2.3

RESOURCES REQUIRED TO COMPLETE PROJECT LABS

In order to complete the Project Labs, the user should have:

The most current version of the MPLAB IDE and C18 compiler installed on their

PC. The MPLAB IDE can be found at: http://www.microchip.com/stellent/idc-

plg?IdcService=SS_GET_PAGE&nodeId=1406&dDoc-

Name=en019469&part=SW007002

Chapter 2. Getting Started Project Labs

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