USB Interface using PIC

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  1. - 24th April 2005, 20:31 #1
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    Having now got my USB PICs for development (all of the 18F USB Series), are there any examples of how to switch the outputs of the PIC HIGH or LOW as driven by the PC.

    I'm looking at an application where by the front end is developed using VB, but then the control is by the PIC. So VB sends a command to the PIC to make a desired PORT HIGH or LOW.

    It seems fairly simple in its concept, but i can't find any examples of this on the WEB / Forums.

    Any help / pointers would be appriciated.

    Thanks.

    Steve.
  2. - 24th April 2005, 21:14 #2
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    Aren't there any examples included with the compiler?
  3. - 25th April 2005, 17:54 #3
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    Not as far as im aware, but i may be wrong. They just seem to be about complex data transfer opposed to simple switching commands.

    Of course if you are aware of any, then please correct me if i'm wrong.

    I'm using PicBasic Pro.

    Many thanks,

    Steve
  4. - 25th April 2005, 18:29 #4
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    The Compiler I'm using has many demos including one to Implement the functionality of a Jan Axelson demo which flashes Leds at the Pic end in response to inputs made at the PC. And I just remembered one where as I move my mouse pointer of a picture of a Prototype board the Led's light up on the real board.

    I can only suggest you contact Melabs for more help.
    Last edited by OXIMBIT; - 25th April 2005 at 18:33.
  5. - 25th April 2005, 19:16 #5
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    Sounds like what exactly after. Two questions then, what Compiler are you using and can you send these demos to me on email? I've sent you a PM with my email address.

    Many thanks,

    Steve
  6. - 25th April 2005, 21:09 #6
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    Steve I have sent you a PM with some example code.

    Tim
  7. - 26th April 2005, 07:37 #7
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    DOes any of you have a schematic of how to connect the PIC18F2455 to the usb?
  8. - 27th April 2005, 17:45 #8
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    Quote Originally Posted by Tissy
    Having now got my USB PICs for development (all of the 18F USB Series), are there any examples of how to switch the outputs of the PIC HIGH or LOW as driven by the PC.
    look at this
    http://www.alecmcnamara.freeserve.co.uk/piccalc/
    you find HIDcomm component from Microchip for really easy VB development
  9. - 22nd May 2006, 14:55 #9
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    Default facing problem with compiler in usb subject

    i face the error message

    "ERROR: Macro USBINIT? not found in macro file"

    how to solve this problem

    soni
  10. - 22nd May 2006, 15:02 #10
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    if you are german, look at http://www.sprut.de there are the basic for USB & PIC18Fxx55 !
    PBP 2.50C, MCS+ 3.0.0.5, MPLAB 8, MPASM 5.14, ASIX Presto, PoScope, mE mikroBasic V7.2, PICKIT2
  11. - 22nd May 2006, 16:04 #11
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    Quote Originally Posted by robbenaz
    i face the error message

    "ERROR: Macro USBINIT? not found in macro file"

    how to solve this problem

    soni
    Tell us wich PIC you're using and post your code here.
    Steve

    It's not a bug, it's a random feature.
    There's no problem, only learning opportunities.
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