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How to set PORTB in 16F877A to 4 bit output ?

 
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Kannan



Joined: 02 Jun 2010
Posts: 1

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How to set PORTB in 16F877A to 4 bit output ?
PostPosted: Wed Jun 02, 2010 5:41 am     Reply with quote
I am new to PIC programming.

I am trying CCS compiler version 4.084.

I want to send a character (8 bit) to lcd display through PORT B which will be displayed in a LCD.

Since I have connected pin 6 and 7 to control other devices (Relay), I am not able to send the 8 bit directly to PORT B.

Now I want to break the character into 4 bits and send the data to an LCD using the PORTB with low and high separately. ( 2 x 4 Bits)

Is there any built-in function in CCS itself or any other logic to be applied?

Thanks
M V Kannan
dyeatman



Joined: 06 Sep 2003
Posts: 1923
Location: Norman, OK

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PostPosted: Wed Jun 02, 2010 5:49 am     Reply with quote
The Flex Driver already does this for you.

http://www.ccsinfo.com/forum/viewtopic.php?t=24661
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