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Problem with printf and timers

 
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JoaoSantos



Joined: 19 Jun 2007
Posts: 20
Location: Castelo Branco, Portugal

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Problem with printf and timers
PostPosted: Wed Oct 29, 2008 4:28 pm     Reply with quote
My system has a communication protocol between two PICs
I think I have a problem with a printf and a timer, I suspect that the interrupt of the timer cut my printed string and the timeout getc of the RX PIC forget the string, that origin a loss of information.

There are some way to disable a timer, automatic (not manually with disable_interrupt(timer3) ) to create some priority to make not possible the timer make a interrupt in a middle of a printf (transmit to rs232) ?
FvM



Joined: 27 Aug 2008
Posts: 2337
Location: Germany

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PostPosted: Wed Oct 29, 2008 4:30 pm     Reply with quote
This should never happen.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Wed Oct 29, 2008 4:40 pm     Reply with quote
Quote:

There are some way to disable a timer, automatic (not manually with
disable_interrupt(timer3) ) to create some priority to make not possible
the timer make a interrupt in a middle of a printf (transmit to rs232) ?

Download the CCS manual:
http://www.ccsinfo.com/downloads/ccs_c_manual.pdf
Look in the section on #use rs232. Read about this parameter:
Code:
DISABLE_INTS
Guest
PostPosted: Wed Oct 29, 2008 5:03 pm     Reply with quote
Thank you very much PCM, this is the option I need.

Regards.
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