+ Post New Thread
Results 1 to 9 of 9
  1. #1
    Newbie level 4
    Points: 1,196, Level: 7

    Join Date
    Jul 2006
    Location
    Maharashtra,India
    Posts
    6
    Helped
    0 / 0
    Points
    1,196
    Level
    7

    How to connect USB device to a PC without USB port?

    I want to use a USB device on my computer but I do not have a USB port on my computer. Is there any way to connect a USB device to a RS232 port? Can I design it myself using USB compatible microcontroller?

    •   Alt10th December 2006, 06:47

      advertising

        
       

  2. #2
    Advanced Member level 3
    Points: 10,724, Level: 24
    budhy's Avatar
    Join Date
    Oct 2006
    Location
    Indonesia
    Posts
    830
    Helped
    219 / 219
    Points
    10,724
    Level
    24

    Re: conecting USB device

    There are Addon USB Interface Card on the market



  3. #3
    Full Member level 5
    Points: 3,658, Level: 14
    asic1984's Avatar
    Join Date
    Nov 2003
    Posts
    259
    Helped
    4 / 4
    Points
    3,658
    Level
    14

    Re: conecting USB device

    hi

    there are pci cards that provide u with usb interface

    also there is usb to rs232 converters but i think pci cards are better solutions



  4. #4
    Member level 2
    Points: 1,524, Level: 8

    Join Date
    Aug 2006
    Location
    Mars
    Posts
    50
    Helped
    4 / 4
    Points
    1,524
    Level
    8

    Re: conecting USB device

    the simplest way would be to buy a serial to usb convertor which is readily available and is also nt very expensive.. but if u want to design it on your own you use a converter chip like FT232 etc.

    Hope it helps.



    •   Alt14th December 2006, 08:35

      advertising

        
       

  5. #5
    M!k
    M!k is offline
    Advanced Member level 2
    Points: 10,943, Level: 25
    M!k's Avatar
    Join Date
    Apr 2002
    Posts
    682
    Helped
    113 / 113
    Points
    10,943
    Level
    25

    Re: conecting USB device

    Quote Originally Posted by chintan_jagani
    I want to use a USB device on my computer but I do not have a USB port on my computer.
    That means you need an USB host (not an USB device)!!!

    Quote Originally Posted by evl_inside
    the simplest way would be to buy a serial to usb convertor which is readily available and is also nt very expensive.. but if u want to design it on your own you use a converter chip like FT232 etc.
    No, these are USB devices (not hosts) to which a serial device can be connected. A USB device can't be connected to these converters.

    So the simplest way would be, as already proposed, to buy a USB addon card.


    Mik



  6. #6
    Full Member level 2
    Points: 2,523, Level: 11
    jakjoud's Avatar
    Join Date
    Feb 2005
    Location
    Marrakech
    Posts
    129
    Helped
    11 / 11
    Points
    2,523
    Level
    11

    conecting USB device

    The PCI cards generate a lot of adress problems at least this is my personnal experience with them. yes there is a possibility to designe a such convertisor (RS232-USB) using a microcontroler. but it's not so easy! but you can find such device already to be bought!



  7. #7
    Full Member level 1
    Points: 2,445, Level: 11

    Join Date
    Jul 2004
    Location
    Brasov, Romania
    Posts
    105
    Helped
    8 / 8
    Points
    2,445
    Level
    11

    Re: conecting USB device

    There are lots of PCI add-on cards on the market, some of them are exhibiting problems, but most of them are working pretty well. The microcontroller solution isn't suitable at all, no need to waste your time studying how to implement a USB host, and even if you do, you'll end up having too little processing power.



  8. #8
    Newbie level 3
    Points: 1,276, Level: 8

    Join Date
    Mar 2007
    Posts
    3
    Helped
    0 / 0
    Points
    1,276
    Level
    8

    Re: conecting USB device

    Every solution has its advantages and disadvantages:

    A. Adding USB host-controller hardware (PCI Add-on Card) needs operating system that supports USB (eg. Windows 98 or later). Also as we know that PCI slots have a power allowance of 10 watts, so more load on the power supply and more heat will be generated inside the system.

    B. Using a converter to USB (RS-232, parallel...) isn’t normally an option when the PC has the legacy interface.



  9. #9
    Full Member level 5
    Points: 6,024, Level: 18

    Join Date
    Feb 2008
    Location
    Bangalore
    Posts
    289
    Helped
    51 / 51
    Points
    6,024
    Level
    18

    Re: conecting USB device

    Hi,

    You can design a module which contains the Serial port Interface a controller and USB interface. Very low end controller can be used to convert the serial port data into USB data format and visa versa.

    If you need more details, contact me.

    Regards,

    N. Muralidhara

    CRL-BEL



+ Post New Thread
Please login