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sending to pc from pic for analog data problem?

 
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capella



Joined: 07 Feb 2009
Posts: 38

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sending to pc from pic for analog data problem?
PostPosted: Wed Mar 31, 2010 6:47 am     Reply with quote
hello

I try to send potentiometer data from pic to data. I performed. But pic send data continuously.
Code:

#include <16f877.h>
#fuses XT,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP,NOPUT,NOWRT,NODEBUG,NOCPD
#use delay(clock=4000000)
#include <stdio.h>

#use rs232 (baud=9600,  xmit=pin_C6, rcv=pin_C7, parity=N, stop=1)

int32 n;
char a;

main()
{
a = getch();
setup_adc(ADC_CLOCK_DIV_2);
setup_adc_ports(all_analog);
set_adc_channel(0);

while(1)
  {
   n=read_adc();

   if (a=='c')
     {
      printf("deger=%lu",n);
      delay_ms(100);
     }
  }

}

So when I tested on Proteus program, the virtual display shows deger=255 or deger=20, etc. (when I changed the potentiometer value).
So I want to do that when I changed the potentiometer values once the datas come from pic to pc at once no continuously. is it possible to do?
capella



Joined: 07 Feb 2009
Posts: 38

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PostPosted: Wed Mar 31, 2010 12:29 pm     Reply with quote
has anyone got an idea?
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Wed Mar 31, 2010 12:38 pm     Reply with quote
You need to start thinking like a programmer, instead of asking us to
write code for you.

This sample program may help you. See if you can change it to create
your desired program:
http://www.ccsinfo.com/forum/viewtopic.php?t=41229
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