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Subject: 
LCD Addressing - & - Expanded Mode
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Sun, 3 May 1998 21:01:21 GMT
Original-From: 
Mike Davis <ipscone@halcyon!Spamless!.com>
Viewed: 
1493 times
  
Two questions:

1) I'm having a little trouble figuring out how the LCD is addressed.
It uses A8 and A8 but also is clocked from Port A.

Can someone explain how to properly address the LCD using ASM?

2) The Mode B pin is always grounded.  How does the system get put
into expanded mode since that mode requires Mode B to be high during
reset?  I assume it must be changed (the mode) by the downloaded
program.

Can someone explain this sequence, if I am right?  If I am wrong, can
someone explain how expanded mode is entered?
--
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Message has 1 Reply:
  Re: LCD Addressing - & - Expanded Mode
 
(...) You can only run the LCD when in single chip mode. (...) This leaves the chip in 'special test mode' that lets you go into and out of expanded mode by writing the config register. --Chuck (27 years ago, 4-May-98, to lugnet.robotics.handyboard)

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