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Thread: serial communication question (resolve)

  1. Dec 1st, 2004, 08:30 PM #1
    VBcielle
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    Unhappy serial communication question (resolve)

    hello gurus vb expert

    is it possible to display the result im sending
    in serial port communication even if my PC is not connected
    to the hardware im sending into?


    Help! i want to test my code if im sending the right info but the equipment that i want to test havent arrived yet and i have a deadline.
    Last edited by VBcielle; Dec 2nd, 2004 at 12:20 AM.
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  2. Dec 1st, 2004, 08:33 PM #2
    David.Poundall
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    Link pins 2 and 3 on your serial port and what comes back into your receive buffer is exactly what you sent. Print it using debug.print.
    David

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  3. Dec 1st, 2004, 08:50 PM #3
    VBcielle
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    thanks for the quick reply David

    can u explain it further im a little bit slow here...

    what do u mean by link 2 and 3 on my serial port?
    How do i do that? please reply
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  4. Dec 1st, 2004, 09:29 PM #4
    kebo
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    I think David is refering to a quick and dirty null modem. Look here
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  6. Dec 1st, 2004, 10:12 PM #5
    VBcielle
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    hi kevin thanks for the reply



    okie i hope i understand it right...

    i have to connect 2 pins 2 and 3 like the picture attached


    can i use wires to connect this pin?
    Last edited by VBcielle; Dec 1st, 2004 at 10:21 PM.
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  7. Dec 1st, 2004, 10:14 PM #6
    VBcielle
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    serial communication question (resolve)

    here is the attached file

    Hope anyone could help!!
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    Last edited by VBcielle; Dec 2nd, 2004 at 12:17 AM.
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  8. Dec 2nd, 2004, 02:57 AM #7
    David.Poundall
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    Yes, as you are using a 25 way serial port though you should be able to poke a wire into pins 2 and 3 to make the link. If you were using a 9 way serial port, you would have to try linking two pins - not good. You would need to get a female "D" connector and make the link on that.
    David

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  9. Dec 2nd, 2004, 03:22 AM #8
    VBcielle
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    okie thanks David ill try to do that.
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