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two codes

 
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myumair



Joined: 19 Jul 2009
Posts: 11

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two codes
PostPosted: Tue Aug 04, 2009 3:20 pm     Reply with quote
I have two set of functions named as same Writetoreg (byte).
I am bit confused to see them as I don't know what is actually happening in them , my 1st effort will be to understand this.
I am talking about the SSPBUF and SSPIF things in this.. thanks.
Code:

void Writetoreg(int byteword)
{
   PORTA &= 0x04;   
   SSPBUF = byteword;
   while ( !(PORTA & 0x04) )
      ;
   PORTA |= 0x20;      
}


void Writetoreg(int byteword){
 PORTA &= 0x05;             
 SSPBUF = byteword;
 do
 {
    ;
 }while(SSPIF==0);
 SSPIF=0;
 while(!(PORTA&0x04)){     
  ;
 }
}
mkuang



Joined: 14 Dec 2007
Posts: 257

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PostPosted: Tue Aug 04, 2009 3:32 pm     Reply with quote
What are you trying to do exactly? Is there any reason why you are not using the build-in spi_read() and spi_write() functions with the CCS compiler?
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Tue Aug 04, 2009 3:39 pm     Reply with quote
Please don't start a new thread every time you have a new question
on using the SSP module. You already have an existing thread here:
http://www.ccsinfo.com/forum/viewtopic.php?t=39789

Just add new questions on the SSP module (or SPI) to one thread.
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