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Problem with capsense

 
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marcudan



Joined: 01 Dec 2012
Posts: 2

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Problem with capsense
PostPosted: Sat Dec 01, 2012 3:05 pm     Reply with quote

I'm trying to make the LED (pin_a6) to light while I'm with the finger on the button (c == 'V') but it's not working.
Please help me.
Code:

#include <16F1827.h>
#fuses INTRC_IO,NOWDT,NOPROTECT,NOMCLR
#use delay (internal=8000000)
#use fast_io (A)             

#use touchpad(scantime=40ms,threshold=6,RANGE=H,PIN_B1='J',PIN_B2='X',PIN_B3='S',PIN_B4='A',PIN_B5='V')


void main()
{
set_tris_a(0X00);
setup_adc_ports(NO_ANALOGS);
delay_ms(500);

output_low(PIN_A0);
output_low(PIN_A1);
output_low(PIN_A2);
output_low(PIN_A3);
output_low(PIN_A4);
output_low(PIN_A5);
output_low(PIN_A6);
output_low(PIN_A7);
char k=0;
char c=0;

enable_interrupts(GLOBAL);
TOUCHPAD_STATE(1);

while(TRUE)
   {
   delay_ms(300);
   c=0;

   if (k==0)
       k=1;
       
   if (k==5)
       k=4;
   
   if (k==1)
     { output_low(PIN_A7);
       output_low(PIN_A4);
       output_low(PIN_A3);
       output_low(PIN_A2);
     }
   if (k==2)
     { output_high(PIN_A7);
       output_high(PIN_A4);
       output_low(PIN_A3);
       output_low(PIN_A2);
     }
   if (k==3)
     { output_high(PIN_A7);
       output_high(PIN_A4);
       output_high(PIN_A3);
       output_low(PIN_A2);
     }
   if (k==4)
     { output_high(PIN_A7);
       output_high(PIN_A4);
       output_low(PIN_A3);
       output_high(PIN_A2);
     }
     
     //c=0;

      if(touchpad_hit())
      {
         c=touchpad_getc();
      }
     
      if (c=='J')
      {
       k=k-1;
       delay_ms(300);
      }
     
      if (c=='S')
      {
       k=k+1;
       delay_ms(300);
      }
     
      if (c=='A')
      {
       output_high(PIN_A1);
       delay_ms(1000);
      }
     
      if (c=='X')
      { 
       output_high(PIN_A0);
       delay_ms(1000);
      }

      if (c=='V')
      {
       output_high(PIN_A6);
    //  while (c!='V');
      delay_ms(1000);
       }
   
      output_low(PIN_A0);
      output_low(PIN_A1);
      output_low(PIN_A6);
   
      }   
}
rodrigo.bzsilva



Joined: 13 Nov 2012
Posts: 4

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Re: Problem with capsense
PostPosted: Thu Dec 06, 2012 5:56 am     Reply with quote

Hi, post a description of your hardware and your CCS compiler version.

I suggest that remove the directive "#use fast_io (A)" and "set_tris_a(0X00)". The CCS Compiler normally creates automatic settings for such functions used.
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