USB to Serial RS232 cable problems

Discussion in 'General Electronics Chat' started by Chaabane, Feb 26, 2010.

  1. Chaabane

    Thread Starter Member

    Nov 30, 2009
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    0
    Hello,

    i have this cable that convert USB to RS232 (i guess).but when i plug it in my laptop,it ask for driver. and i didn't get any CD with it. ??
    [​IMG]
    i want to use it with my pic boot-loader. so i can program from my laptop without the need to go to my PC.
    Any idea about this problem ???
     
  2. t06afre

    AAC Fanatic!

    May 11, 2009
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    Yes you need a driver. I suggest you Google the manufactures name and/or model name. I am sure they have web site for driver download
     
  3. Chaabane

    Thread Starter Member

    Nov 30, 2009
    37
    0
    Hi
    the problem is that i don't have the manufacture name, and i downloaded lots of driver,but no one works
     
  4. BMorse

    Senior Member

    Sep 26, 2009
    2,675
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    when you plug it into the computer, it should have displayed a device name or something such as example :
    do you remember what it said the device was?

    B. Morse
     
  5. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
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    What type of boot loader / programmer do you have? Is it a velleman?

    If the driver installs properly, but the PIC doesn't program, it is usually because USB doesn't have the 12v that some programmers need to write the PIC. The usb rs-232 driver is an rs-232 emulator, used for proper communications at logic levels, however you need the 12v rail from 'real' rs-232 to program on programmers that donot have their own 12v source.
     
  6. spinnaker

    AAC Fanatic!

    Oct 29, 2009
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    I have a RS232 version of these a a parallel version. Neither required a driver for Windows XP.

    What OS are you using?

    Did you write the boot loader or buy it?

    It might be that the software is not compatible. I sell a software product of my own and I had complaints that it does not work with one of these RS232 USB ports but I have been unable to duplicate the problem.
     
  7. t06afre

    AAC Fanatic!

    May 11, 2009
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    Why not get a PICKIT or a PICKIT clone. They work and do not set you more back than a USB to RS232 converter.
     
  8. kubeek

    AAC Fanatic!

    Sep 20, 2005
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    Or and FT232R chip from FTDI, which saves you the hassle of converting the +/-12V RS232 levels back to 0-5V logic. Very easy to use, but it is SMD which could be a problem if you don´t have the necessary tools and precision.
     
  9. Razor Concepts

    Active Member

    Oct 7, 2008
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  10. Chaabane

    Thread Starter Member

    Nov 30, 2009
    37
    0
    Thanks guys for all your comments,I really appreciate it.

    yeah,it gives me this message ""USB2.0-Ser!" just this message.


    i didn't try the pic yet.should I ?

    i didn't even try the bootloader,i'll try to program the pic with it.


    I'm in Algeria dude, this PICKITs doesn't exist here, and it will took lots time to get one.

    hmmm,i'm not sure about but i'll check it,Thanks


    Thanks,i'll check it
     
  11. t06afre

    AAC Fanatic!

    May 11, 2009
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    Last edited: Mar 1, 2010
  12. lkwah86

    Member

    Mar 9, 2007
    22
    1
    Can Windows 7 compatible with the USB to parallel converter? any driver for this?
     
  13. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
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    JDM and other simple programmers need true RS232 ports, the emulated USB to RS232 do not work.
     
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