Microchip Technology DV164139 Data Sheet
Low Pin Count USB Development Kit User’s Guide
DS41356B-page 40
© 2009 Microchip Technology Inc.
Next, the virtual COM port will be checked in the Device Manager to identify the COM
port number.
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.
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
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.
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”.
Description”.
23. Name this first connection “USB Connection” and click OK. (See Figure 2-16.)