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byte and nibbles

 
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alecrp



Joined: 08 Aug 2006
Posts: 3

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byte and nibbles
PostPosted: Thu Sep 07, 2006 8:17 am     Reply with quote

hi someone can help me?
i read two byte from the serial port of my pic in two variable

.....
int value,value1;
value = getc();
value1=getc();
.....


i must put the high nibble of value and the low nibbe of value1 (4 bit and 4 bit) in value3;
how?
thanks.
Humberto



Joined: 08 Sep 2003
Posts: 1215
Location: Buenos Aires, La Reina del Plata

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PostPosted: Thu Sep 07, 2006 8:51 am     Reply with quote

Did you try it ?
If so, please show us to see how you do it and we will help you.


Humberto
CCS JIM
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PostPosted: Thu Sep 07, 2006 8:54 am     Reply with quote

Use an and to clear out the lower nibble of value and then or it with the lower nibble of value1.

Code:


  value3 = (value & 0xf0) | (value1&0x0f);



If I mixed up the nibbles, just switch value and value 1.
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