Click “Add Pair” button to create two virtual serial ports. ![]() Navigate into your Start menu to com0com and open Setup.If you are a Vista user, disable UAC (more info here: ).Download and install the latest version of com0com from Sourceforge:. ![]() You can develop your graphical user interface on one side, and a model of the device on the other side. It is then possible to run two programs, connected to the two virtual serial ports, that communicate with each other. ![]() ![]() In order to start developing while you wait for the real device (or an evaluation board) you can use virtual serial ports.Ĭom0com is a nice Windows tool to create virtual serial ports and to connect them together, simulating a cable link. Serial ports are not very useful for the end-user, but they are very important for administration of headless (without monitor) servers and for embedded device development.įor example, if you are designing a chip that contains a micro-processor with a serial port (UART) to communicate with an external control (such as a graphical tool running on a PC) chances are that you won’t immediately have a real device attached to the real serial port of the PC.
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