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Problem with 'fast_io"

 
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Problem with 'fast_io"
PostPosted: Sat Nov 22, 2008 10:08 am     Reply with quote
I am having a problem using the fast_io directive. I am trying to blink two LEDs, one on A0 and the other on A1. When I '#use standard_io(all)', everything works great. When I '#use fast_io(all)' and include ' set_tris_a(0xC0) in the Do...While loop in Main, the outputs don't toggle.

I am working with a 16F871 with Compiler version 4.082.

Any suggestions would be greatly appreciated!!

Thanks,
Code:
 
#include "C:\Test Project\main.h"
#use rtos(timer=0,minor_cycle=100us)
//#use fast_io(all)
#use standard_io(all)

byte Blinker,BlinkOut;
byte Blinker1,BlinkOut1;


#task(rate=100us,max=100us)
void Handler();
#task(rate=250ms,max=100us)
void Blink();

void Blink() {
   ++Blinker;
   BlinkOut = Blinker & 0x01;
   If (BlinkOut == 0)
      Output_Bit(Pin_A0,0);
   else
      Output_Bit(Pin_A0,1);
}

void Handler () {
   ++Blinker1;
   BlinkOut1 = Blinker1 & 0x01;
   If (BlinkOut1 == 0)
      Output_Bit(Pin_A1,0);
   else
      Output_Bit(Pin_A1,1);
}

void main()
{

   setup_adc_ports(NO_ANALOGS);
   setup_adc(ADC_OFF);
   setup_psp(PSP_DISABLED);
   setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
   setup_timer_1(T1_DISABLED);
   setup_timer_2(T2_DISABLED,0,1);

   // TODO: USER CODE!!
   rtos_run();
   
   
   do {
//   set_tris_a(0xC0);

   }while (1);
   
}
RLScott



Joined: 10 Jul 2007
Posts: 465

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Re: Problem with 'fast_io"
PostPosted: Sat Nov 22, 2008 12:53 pm     Reply with quote
Just a guess, but I think that when you call rtos_run() in the main program, the main program is suspended until the rtos shuts down. Therefore your set_tris_a is never executed. Call set_tris_a just once before calling rtos_run().

As for getting rid of your e-mail, you can do that yourself. Just click on "Profile" at the top the page and edit your own profile. Uncheck the box that says "Always show e-mail address.". If that doesn't work retroactively, then just delete the first posting entirely. Do that by clicking on the "X" on the right of the posting.
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