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chintan_jagani
Joined: 05 Jul 2006
Posts: 8
Location: Maharashtra,India
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 10 Dec 2006 8:47 conecting USB device |
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| 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?
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budhy
Joined: 21 Oct 2006
Posts: 840
Helped: 185
Location: Indonesia
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| 13 Dec 2006 2:44 Re: conecting USB device |
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| There are Addon USB Interface Card on the market
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asic1984
Joined: 15 Nov 2003
Posts: 265
Helped: 3
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| 13 Dec 2006 5:56 Re: conecting USB device |
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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
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evl_inside
Joined: 10 Aug 2006
Posts: 51
Helped: 3
Location: Mars
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| 14 Dec 2006 10:35 Re: conecting USB device |
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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.
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M!k
Joined: 22 Apr 2002
Posts: 787
Helped: 62
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| 14 Dec 2006 11:14 Re: conecting USB device |
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| chintan_jagani wrote: |
| 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)!!!
| evl_inside wrote: |
| 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
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jakjoud
Joined: 06 Feb 2005
Posts: 148
Helped: 9
Location: Marrakech
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| 14 Dec 2006 11:46 conecting USB device |
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| 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!
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x_zoli
Joined: 22 Jul 2004
Posts: 106
Helped: 6
Location: Brasov, Romania
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| 07 Mar 2007 0:14 Re: conecting USB device |
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| 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.
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torento
Joined: 09 Mar 2007
Posts: 3
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| 10 Mar 2007 15:20 Re: conecting USB device |
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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.
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muralicrl
Joined: 06 Feb 2008
Posts: 281
Helped: 30
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| 13 Mar 2008 11:34 Re: conecting USB device |
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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
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