Hi Jan-Erik
I am testing to see if the bit is set.
I don't believe it should be set.
I think this condition is bogus or the hardware is lying......I know it
sounds even crazier if I say it out loud.
Even if it is not I don't see why I need to clear the darn thing even if it
is set.
So what I got a bad character....who cares?
How does the over run prevent further interrupts from occurring?
Where is it written that if there is an error on a USART that interrupts are
now stopped forever?
I thought the whole idea of having those errors was so that you could drop a
character without having to process it or maybe as an aide to be able to
work out the baud rate on the fly.



void handle_chars_gps(void)
{

  PIR3bits.RC2IF = 0;                     //reading a char is supposed to
clear the interrupt flag so I should not need to do this eh?

 if (RCSTA2bits.OERR) 
 {   
  RCSTA2bits.CREN = 0;                       //disable then enable the
receiver to clear the over run error
  RCSTA2bits.CREN = 1;                       //if I don't do this I only get
two interrupts and then they just stop
  return;
  }                      
 char_holder = getc2USART();                      //this causes problems
even with out pushing the the character to the NMEA buffer 

// push_NMEA_char(char_holder);  
} 
 
 Mucho thanks
 
 
Phillip
Things should be as simple as possible but no simpler
 
 
 
Phillip Coiner
CTO, GPS Source, Inc.
 
 
Your source for quality GNSS Networking Solutions and Design Services, Now!

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
Jan-Erik Soderholm
Sent: Tuesday, September 19, 2006 12:17 PM
To: piclist@mit.edu
Subject: RE: RE: RE: FW: [PIC] Trouble getting my ISR high

> I'm not that sure that an overrun is really physically occurring (I 
do
> believe the bit is set because clearing it makes things work) but I
> can't think of a way to prove it.

Add a test on the OERR bit ?

Jan-Erik.



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