Win32 Console application to run a loopback test on multiple consecutive serial ports using the standard win32 COM api. command line usage: looptest X Y X is the number of ports to include in the loop Y is the starting COM port # This program will send 0-0xff to each port, and expect to get it back. If a loopback is not present the ports will timeout. Otherwise it will continue sending 0-255 to each port until a key is pressed. While testing after a complete loop has been done (through each port) the program will display how many loops have been done and how many errors have been encountered.Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.