We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 33319

SP601 - HyperTerminal does not automatically detect USB UART Bridge


Keywords: FPGA, not connected, Spartan-6, demo, port, serial communication, terminal

Hyperterminal is not detecting the USB UART Bridge on my SP601. The Getting Started Guide indicates that the COM port needs to be set to "COM4," but this HyperTerminal does not connect to the board.


Microsoft Windows OS assignment of USB port to address is automatic and might vary from machine to machine. Although the USB-UART Bridge on the SP601 is typically assigned COM4, this might vary.

Figure 1 - HyperTerminal COM Port Assignment
Figure 1 - HyperTerminal COM Port Assignment

To find out the actual port assignment, open the Device Manager (right-click on My Computer -> Properties -> Hardware tab -> Device Manager).

Expand the "Ports (COM & LPT)" option and find "CP210x USB to UART Bridge Controller". The COM port will be noted, in parenthesis, after the device name.

Figure 2 - Device Manager showing COM port assignment
Figure 2 - Device Manager showing COM port assignment

Use this COM Port location when setting up HyperTerminal to establish a connection.
AR# 33319
Date Created 08/21/2009
Last Updated 09/15/2009
Status Active
Type General Article