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???
12/09/02 16:46
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#34073 - MON51 and LCD
I am using Keil's MCBx51 evaluation board which comes with Mon51 on EEprom.
I am trying to interface a P89C662 with an LCD. I am using the example in Mazidi's book.
The RS, R/W, E pins of the LCD are attached to P2.0, P2.1, P2.2 respectively.
When I try to use the Keil Monitor-51 driver to do on chip debugging, P2 never changes so I cannot even initialize the LCD.
The P89C662 has 32K flash so I am not using any external memory. So I should be able to use P2 and P0 as I/O ports. But for some reason I can't!!!
Am I hosed, I cannot run Mon51 and use an LCD at the same time?

List of 2 messages in thread
TopicAuthorDate
MON51 and LCD            01/01/70 00:00      
RE: MON51 and LCD            01/01/70 00:00      

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