Microcontroller selection

Discussion in 'Embedded Systems and Microcontrollers' started by nmanu06, Jan 28, 2012.

  1. nmanu06

    Thread Starter New Member

    Jan 28, 2012
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    Hi,

    Can anyone please suggest me a low cost 8 bit microcontroller with the following features?

    1. Minimum 20 General Purpose I/O lines
    2. 3.3V supply.
    3. One Serial Channel.

    My goal is to set up a parallel interface for printer. This microcontroller is just to receive the parallel data through the centronics parallel connector and to send it serially to the main controller, which will do the further processing.

    Manu
     
  2. btroush

    New Member

    Oct 28, 2011
    7
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    Couldn't you just use a parallel in/serial out shift register?
     
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  3. nmanu06

    Thread Starter New Member

    Jan 28, 2012
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    It can not be done that simply.
    Parallel communication between printer and PC is accomplished with a number of control signals including Strobe, Busy, Ack, etc. Printer should respond to the signals from PC appropriately.
     
  4. t06afre

    AAC Fanatic!

    May 11, 2009
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    Almost any micro with enough IO would be up to such task. Do you have access to a programmer of some sort. Or do you plan to get one. As this will decide which brand of controller you can use
     
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  5. MrChips

    Moderator

    Oct 2, 2009
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    Why do you want to control a printer through a parallel interface? All printers today use a USB interface.
     
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  6. PaulEE

    Member

    Dec 23, 2011
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  7. spinnaker

    AAC Fanatic!

    Oct 29, 2009
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  8. nmanu06

    Thread Starter New Member

    Jan 28, 2012
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    Hi friends,

    Thank you very much for helping me

    Manu.
     
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