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???
12/03/11 15:00
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#185004 - Parallel IO from USB
Responding to: ???'s previous message
Andy Neil said:
Wouldn't it make more sense to use a serial port (either a "real" COM port, or a USB "virtual" one) and an 8051 as an external "IO controller"...?


FTDI (possibly also others) make chips & modules which can give you parallel IO direct from USB.

For an out-of-date example, see: http://www.antronics.co.uk/usbmod2/

The Current range of FTDI modules is here: http://www.ftdichip.com/Products/...odules.htm - you want the ones with the "FIFO" interface.

See also: http://www.ftdichip.com/Products/...odules.htm


One big advantage of USB is that it is specifically designed to supply power to the device - something which neither RS232 nor an LPT port is designed to do.

List of 4 messages in thread
TopicAuthorDate
Parallel port            01/01/70 00:00      
   Can you show a schematic?            01/01/70 00:00      
   Why the parallel port?            01/01/70 00:00      
      Parallel IO from USB            01/01/70 00:00      

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