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fputc()

 
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hobby_85



Joined: 17 Aug 2009
Posts: 50

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fputc()
PostPosted: Mon Aug 24, 2009 9:54 am     Reply with quote
Hey, just had a quick question. If I am transmitting something over RF, and have several fputc() statements one after another, does the function buffer/queue the data?

Or would i be force feeding it before it has time to pass through the UART?

My statements look like this at present:

Code:


                  fputc(NUL,COM_A);  //send out stream AAA
                  fputc(NUL,COM_A);
                  fputc(NUL,COM_A);
                  fputc(STX,COM_A);
                  fputc('A',COM_A);
                  fputc('A',COM_A);
                  fputc('A',COM_A);
                  fputc(CRC,COM_A); //send out checksum of 85
                  fputc(CR,COM_A);



thanks
SherpaDoug



Joined: 07 Sep 2003
Posts: 1640
Location: Cape Cod Mass USA

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PostPosted: Mon Aug 24, 2009 11:19 am     Reply with quote
The fputc() function won't return until the character is either put in the Xmit buffer for a hardware UART, or actually sent in the case of the CCS software UART.
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hobby_85



Joined: 17 Aug 2009
Posts: 50

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PostPosted: Mon Aug 24, 2009 11:22 am     Reply with quote
cool. thanks for that.

back to debugging
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