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18F14K50 and sleep

 
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respected



Joined: 16 May 2006
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18F14K50 and sleep
PostPosted: Tue Aug 02, 2011 1:40 pm     Reply with quote
Hi friends.
will have a few questions about the mcu.
1-Can I switch to sleep mode, when timer1 is running?
2- how to wake-up 10 sec intervals
PCM programmer



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PostPosted: Tue Aug 02, 2011 2:39 pm     Reply with quote
See this demo program:
http://www.ccsinfo.com/forum/viewtopic.php?t=45458&start=5
respected



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PostPosted: Tue Aug 02, 2011 3:25 pm     Reply with quote
Code:

#include <18F2550.h>
#device ADC=10
#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,CPUDIV1,VREGEN,MCLR,PLL3
#use delay(clock=48000000)

#include <lcdlog.c>
int8 san=0;
int8 mode=0;

#int_TIMER1
void timer1_isr()
{
set_timer1(32768);
san++;
mode++;

}

void main(void)
{
   setup_adc(ADC_CLOCK_DIV_8 );
   setup_comparator(NC_NC_NC_NC);
   setup_timer_1(T1_EXTERNAL_SYNC | T1_DIV_BY_1 | T1_CLK_OUT);
   set_timer1(32768);
   enable_interrupts(INT_TIMER1);
   enable_interrupts(GLOBAL); 
     lcd_init();

   while (TRUE)
      {
       printf(lcd_putc"\f%03u",san);
      output_high(PIN_a1);
      delay_ms(200);
      if(mode==5){
      mode=0;
      sleep();
      }
       
      }
}

Where is the error?
PCM programmer



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PostPosted: Tue Aug 02, 2011 3:32 pm     Reply with quote
Do you have a 32.768 KHz watch crystal (and capacitors) on the Timer1
oscillator pins ? These are separate pins from the main PIC oscillator pins.
respected



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PostPosted: Tue Aug 02, 2011 3:34 pm     Reply with quote
Yes, the circuit is operating normally. But staying asleep.
respected



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PostPosted: Tue Aug 02, 2011 4:00 pm     Reply with quote
do not wake the PIC Timer1 interrupt?
respected



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PostPosted: Tue Aug 02, 2011 4:16 pm     Reply with quote
help me please pcm programmer
0-1-2-3-4 on screen later mcu is sleeping.
but it's don't wake up.
PCM programmer



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PostPosted: Tue Aug 02, 2011 4:28 pm     Reply with quote
Please do not post every 5 minutes begging for me to help you.

Also, read the CCS manual. It says for some PICs a parameter is
available for the sleep() function, and that you should look in the .h
file for the PIC to see the list of parameters. If you did that, you
would see the following parameter is required:

Quote:

if(mode==5)
{
mode=0;
sleep(SLEEP_IDLE);
}
respected



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PostPosted: Tue Aug 02, 2011 4:42 pm     Reply with quote
Thank you for your help.
I am sorry. i take your time
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