add waittest app

loop ?= 1

timer_s ?= 1

arch_drivers += ,timer

#include "arch.h"

#include "driver/gpio.h"

#include "driver/stdout.h"

#include "driver/timer.h"

#include "driver/uptime.h"

#ifndef F_TIMER

#define F_TIMER 100000

#endif

volatile unsigned char timer_done = 0;

inline void await_timer()

{

	timer_done = 0;

	timer.start(1);

	while (!timer_done) {

		arch.idle();

	}

	timer.stop();

}

void loop(void)

{

	gpio.led_toggle(1);

	kout << "start waiting" << endl;

	await_timer();

	kout << "done waiting" << endl;

}

int main(void)

{

	arch.setup();

	gpio.setup();

	kout.setup();

#if F_TIMER > 999

	timer.setup_khz(F_TIMER / 1000);

#else

	timer.setup_hz(F_TIMER);

#endif

	gpio.led_on(0);

	kout << "Timer set at " << dec << F_TIMER << " Hz" << endl;

	arch.idle_loop();

	return 0;

}

ON_TIMER_INTERRUPT_head

	timer_done = 1;

ON_TIMER_INTERRUPT_tail