#include <stdio.h>
#include <stdlib.h>

#include "sa1100.h"

#ifdef SOUND_SPEED
#undef SOUND_SPPED
#endif



int timeout;

struct os_timer_regs* osTimerRegs =  (struct os_timer_regs*) OSMR_0;

// fire sonar, clear distance
void fireSonar() {
}

void clearSonar() {
}


__irq void IntHandle ( void ) {
	// this will be called on a timer interrupt, or on an ECHO rising edge

	/* if (ECHO) put ECHO interrupt handler here */
	/* else handle timer interrupt (shown below) */

	timeout = 1;
	int timerSel;

	timerSel=0;
	  			
	
	DisableTimerIRQ( IRQ_OSTIMER0+timerSel );

  	osTimerRegs->oscr = 0;                      // initialize timer counter register
  	osTimerRegs->ossr  = 1 << timerSel;         // reset interrupt source

  	EnableTimerIRQ( IRQ_OSTIMER0+timerSel );
}


// main
int main( void ) {
	int timerSel = 0;
	timeout = 0;
	initTimer( timerSel, 3000000 ); // sets up a 3 second timer interrupt (every three seconds)
	Install_Handler( (unsigned)IntHandle, (unsigned *)IRQ_VECTOR  ) ; // installs handler 

	/* prints timeout every 3 seconds */
	while(1){
		if (timeout) { 
			printf("timeout\n");
			timeout = 0;
		}
	}

	return 0;
}