DS41356B datasheet(44/54 Pages) MICROCHIP

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Low Pin Count USB Development Kit User’s Guide

DS41356B-page 40

Next, the virtual COM port will be checked in the Device Manager to identify the COM

port number.

Establish Communication

21. Using step 29 in Project Lab 1 to navigate to the Device Manager, expand the

ports (COM and LPT). The new virtual COM port (usually COM 5 and above on

most PCs) created by the .inf file should be found in the Ports (COM & LPT)

drop-down list in the Device Manager window. If there is difficulty locating the vir-

tual COM port, right click on each driver and select Properties until the CDC

RS-232 Emulation Demo is located. Note the COM port number for both the vir-

tual COM port and the COM port used for an RS-232 connection (Serial Port

Connection on the Host PC). Figure 2-15 shows a list of COM ports available.

The reader’s list may differ.

FIGURE 2-15:

EXAMPLE LIST OF AVAILABLE COM PORTS IN THE DEVICE

MANAGER

This COM port number will be used in the Hyper Terminal program to establish connec-

tivity to both the USB and RS-232 connections between the Low Pin Count USB

Development Board and Host PC.

22. Open a Hyper Terminal window by selecting within Windows,

Start>Programs>Accessories>Communications>HyperTerminal.

The Hyper Terminal Program should now prompt the user for a “Connection

Description”.

23. Name this first connection “USB Connection” and click OK. (See Figure 2-16.)

DS41356B Datasheet(PDF) 44 Page - Microchip Technology