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Creme and javax.comm

Hi everyone.

I want to use the javax.comm package shipped with Creme. Has someone have experiences with it? Which driver to use? Where to find the driver DLL for Pocket PC 2003 and so on?

Thanks for any help.



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    author's profile photo Former Member
    Former Member
    Posted on Jul 18, 2005 at 06:20 PM

    Hello Sascha,

    What specific driver are you trying to develop?

    MI has a feature called PIOS (peripheral input

    output support). There could might be an existing

    library/native driver of the feature you want.

    Check it out in the MDK as well.



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    • Former Member Former Member


      I use MI2.5 on iPAQ 5550. I want to use a RFID-Reader on serial port. I installed javax.comm package v0.7 from teilo directly on CrEme 3.26 (not in the MI directory). At a standard java application it works correctly.

      With identical code on MI it works only sometimes. If I start the MI and can open the port one time, I can close and open again and again without an exception. If I start MI and I can't open the port first time, it newer works. I get a PortInUse Exception, but if I check before, the port is currently not owned. If I start a standard java application after this, the port can be use.

      Maybe it has somethink to do with the MI Classloader, otherwise I have no idea? Can anybody help me?

  • Posted on Jul 18, 2005 at 02:03 PM

    In Sun's forums we read:

    Incidentally, when Gil_Wasserstrom says that CrEme supports Javax.comm, he/she forgets to mention that you'll need to find/make your own communications driver to actually Use the library. The Sun releases don't support Pocket PCs. In fact the only one i've found that does is from Teilo ->

    Unfortunately the link given is broken. You may check the following page out:



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