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is it possible to use two software and one hardware uart

 
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gopalakrishnan



Joined: 18 Jun 2010
Posts: 25

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is it possible to use two software and one hardware uart
PostPosted: Wed Jul 14, 2010 7:38 am     Reply with quote
hai to all


I need three uart. One is hardware and other two are software uart. How to utilize this? What I need is I have to connect GPS in hardware uart, where as Xbee in other (as one software uart works like a half duplex. thats why I am required two. One is for transmit while other is for receive). Is it possible to do like this? If so kindly provide some suggestion.

I had tried, the sample code by rotating a same data from software uart (making one as transmit while other as receive) and transfer the received data to the hardware uart. Finally I see the received data from hardware uart to the pc.
Code:

#use rs232(baud=9600, xmit=pin_c6,rcv=pin_c7,stream=coma)
#use rs232(baud=9600, xmit=pin_B4,stream=comb)
#use rs232(baud=9600,rcv=pin_c0,stream=comc)
 void main()
{
char c;
fprintf(comb,"A");
c=getc(comc);
fputc(c,coma);
}

I am using ccs compiler version 4.053.
kindly reply me
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