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  1. #1
    Registered User
    Join Date
    Jan 2006
    Location
    Templenacarriga,Midleton,Ireland
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    2

    RS232 comm port on Nokia 9500

    Hello,
    I am wondering what is the protocol used to access the comm port on Nokia 9500 communicator. According to the Symbian overview of version 7 of the operating system there is USB 2.0, Bluetooth and IR for communication but the there is a RS232C server. The phone and the series 80 emulator return "no protocol found" for the usual "comm:0;baudrate=9600" used in midp2.
    The phone throws an exception when the System.getProperty("microedition.commports") is called. Surely this should return IR ports too? On the emulator 0 and 1 are returned. I have also seen a nokiacomm:0.
    Does anyone know what are the protocols available in class com.symbian.midp.io.protocol.comm.Protocol or is there another class I should be looking for?
    The goal of the project is to read blood pressure values from a sensor.
    Any help would be greatly appreciated.
    Paul.

  2. #2
    Nokia Developer Expert
    Join Date
    Jun 2005
    Posts
    923

    Re: RS232 comm port on Nokia 9500

    Hi Paul,

    Sorry but I actually found your post to be a little bit confusing.

    1) With "comm:0;baudrate=9600" the emulator and the phone throw the "No Protocol Found" exception, right?

    2) You said that calling System.getProperty("microedition.commports") throws an exception, but you can see 0 and 1 as returned values? How come is this possible?

    Daniel

  3. #3
    Registered User
    Join Date
    Jan 2006
    Location
    Templenacarriga,Midleton,Ireland
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    2

    Re: RS232 comm port on Nokia 9500

    The emulator and phone do not find the protocol.
    I can call System.getProperty("m.c") on the emulator and it will return 0,1 as the port names.
    But on the phone itself there is a crash, the System call has to be avoided in order to be able to try to open a Connection.
    I have heard of rfcomm used through Bluetooth but not sure how it would work.

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