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Another serial question

 
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jacqueskleynhans



Joined: 10 Apr 2008
Posts: 109
Location: Cape Town, South Africa

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Another serial question
PostPosted: Tue Feb 08, 2011 10:18 am     Reply with quote

HI Guys I have a issue reading in more than two serial bytes.

Code:
BOOLEAN waitForResponse( int32 timeout, byte buffer[], int8 bufferLength )
{
  int8 byteCnt = 0;
  int32 time = 0;
 
    while(kbhit(CAMERA)&&(++time<timeout))
   {
      buffer[byteCnt] = fgetc(CAMERA);

      if( byteCnt == bufferLength )
      {
        return (1);
      }
   byteCnt++;      
   }   
      return (0);
}


I'm reading in a total of 6 bytes of which the first two are always correct but the last four are garbage.

Any suggestions ??

Thx
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ezflyr



Joined: 25 Oct 2010
Posts: 1019
Location: Tewksbury, MA

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PostPosted: Tue Feb 08, 2011 10:25 am     Reply with quote

Hi,

Yes, two suggestions:

1. Add the ERRORS directive to your #Use RS232 statement
2. Read the forum everyday as this and other similar problems are covered repeatedly here....

John
jacqueskleynhans



Joined: 10 Apr 2008
Posts: 109
Location: Cape Town, South Africa

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int_rda
PostPosted: Tue Feb 08, 2011 1:49 pm     Reply with quote

Thx I will try and set up a int driven routine.

Regards
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jacqueskleynhans



Joined: 10 Apr 2008
Posts: 109
Location: Cape Town, South Africa

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PostPosted: Wed Feb 09, 2011 1:57 pm     Reply with quote

Ok I solved the problem by adding an isr for my serial bit sream that the pic receives.
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