Subject:
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LCD Addressing - & - Expanded Mode
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Sun, 3 May 1998 21:01:21 GMT
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Original-From:
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Mike Davis <ipscone@halcyon.&avoidspam&com>
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Viewed:
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2279 times
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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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