Just follow the implementation guide from Microsoft for Windows CE to develop the application. You must have the port settings made similar. If you readed the first article I posted, a data structure is mentioned there with which you can set the port settings in the Windows end. See the Microsoft WinCE documentation for a respective setting on the PDA end. I think versions of WinCE sport some type of MFC support, and thus you can use much of the same code to implement port reading on the PDA end. For this purpose, you would need to consult the PDA documentation and/or files to see what version of MFC it supports. The most effective way is to use the Microsoft-provided WinCE emulator. This allows you to develop and test code on an emulator before sending it to the actual device. I think eVC++ supports on-device debugging through a serial connection. This is not very viable in your case, as you need the serial connection yourself. So use the emulator. For an example, create the WinCE build, run it in the emulator, then start the Windows-end program, write data into the port and attempt to read it through the emulator. For an extremely effective method, if your computer supports two COM ports, you can write to the first using the Windows-program, then read from the second using the emulator-driven build. Just get a cross-connected serial cable (or build one yourself) to inter-connect the two ports. Also, you should post this question into the Embedded / Mobile area, as most of the users who develop WinCE software tend to hang around there, and thus you might get more knowledgeable answers. -Antti Keskinen ---------------------------------------------- The definition of impossible is strictly dependant on what we think is possible.
