3-wire LCD interface?


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  1. #1
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    I didn't know what PBP was before 3 years.
    I don't think any code in PBP was posted for 3 or 2 wire interface till now.
    I tried to understand the code given on http://www.rentron.com/Myke1.htm.
    But couldn't really understand the command sequence. I didn't really get how the RS and E lines of the LCD are being handled.
    Last edited by shahidali55; - 5th June 2007 at 20:39.

  2. #2
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    Quote Originally Posted by shahidali55 View Post
    I didn't know what PBP was before 3 years.
    I don't think any code in PBP was posted for 3 or 2 wire interface till now.
    I tried to understand the code given on http://www.rentron.com/Myke1.htm.
    But couldn't really understand the command sequence. I didn't really get how the RS and E lines of the LCD are being handled.
    That's the same book/code/idea I was talking about. I picked up that book back in '01 (give or take a few months). Basically you manually preload a shift register with all the data bits, then the rest of the control bits and the last thing to get 'tripped' is the Enable, all done by a shift register.
    Not a new idea by any stretch, but a handy one...

  3. #3
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    Quote Originally Posted by shahidali55 View Post
    I didn't know what PBP was before 3 years.
    I don't think any code in PBP was posted for 3 or 2 wire interface till now.
    I tried to understand the code given on http://www.rentron.com/Myke1.htm.
    But couldn't really understand the command sequence. I didn't really get how the RS and E lines of the LCD are being handled.
    Look at this thread:
    http://www.picbasic.co.uk/forum/showthread.php?t=4972
    HTH
    JS
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