LOOK菜鸟timer应用例程

#ifndef __LOOK_TIMER_H

#define __LOOK_TIMER_H

#include "look_config.h"

#include <look.h>

#include <instantiate>

// 任务类 task_LOOK_TIMER_t 的定义

class task_LOOK_TIMER_t : public task_t {

public:

task_LOOK_TIMER_t() __OPT_ATTR__; // 构造函数

    void on_signal(void* addr, uintptr_t signal);    // 定义on_signal() 

bool send_message(int msg);

protected:

void routine();  // 任务例程

private:

timer_t timer;

int interval;

mbox_t<int> mbox;

};

// 任务类 LOOK_TIMER 的构造函数

__OPT_INLINE__ task_LOOK_TIMER_t::task_LOOK_TIMER_t()

: timer(*this)           // 初始化定时器实例，并指定触发对象。

, interval(50)    //初始化显示间隔

, mbox(0)

{

// TODO: 在此初始化 task_LOOK_TIMER_t 的类成员

}

extern instantiate::task<task_LOOK_TIMER_t, LOOK_STACK_SIZE> task_LOOK_TIMER;

#endif // __LOOK_TIMER_H

#include "LOOK_TIMER.h"

#include "NUC1xx.h"

#include "NUC1xxM051Seriescfg.h"

class Keyboard_t : public interrupt_t {

public:

Keyboard_t() __OPT_ATTR__;

protected:

bool isr(int vector);

void dsr(int vector, uintptr_t count);

};

// Keyboard_t 构造函数

inline Keyboard_t::Keyboard_t()

{

attach(EINT0_IRQn);

attach(EINT1_IRQn);

GPIOBs.IEN.Regs = (1 << Pin15) | (1 << Pin14);   // 开启中断

vector_t::enable(EINT0_IRQn);

vector_t::enable(EINT1_IRQn);

}

// Keyboard_t 中断服务例程

bool Keyboard_t::isr(int vector)

{

GPIOBs.ISRC.Regs = GPIOBs.ISRC.Regs;   // 清中断 flag

return true;

}

// Keyboard_t 中断滞后服务例程

void Keyboard_t::dsr(int vector, uintptr_t count)

{

if (vector == EINT0_IRQn)//Key2

{

  task_LOOK_TIMER.send_message(50);//+50节拍

}

else if (vector == EINT1_IRQn)//Key1

{

  task_LOOK_TIMER.send_message(-50);//-50节拍

}

}

Keyboard_t Key;         // 创建Key对象

// 任务类 task_LOOK_TIMER_t 的例程

void task_LOOK_TIMER_t::routine()

{

// TODO: 在此编写 task_LOOK_TIMER_t 例程的内容

timer.start(interval);       //定时器

while (true) {

  // TODO: 在此编写 task_LOOK_TIMER_t 例程的内容

  int msg = mbox.get();     // 等待邮箱消息

  if (msg != 0)

  {

   if ((msg + interval) > 0) {//间隔为0非法，不响

    interval += msg; 

    GPIOBs.DMASK.Bits.Pin10 = 0;

    msg = (msg > 0) ? 1 : 2;//+ 响1声,- 响2声

    for (int i = 0; i < (msg * 2); i ++){

       GPIOBs.DOUT.Bits.Pin10 ^= 1;

             delay(LOOK_TICKS_PER_SEC / 20);

    }

    GPIOBs.DOUT.Bits.Pin10 = 0;//关闭BEEP

   }

  }

}

}

void task_LOOK_TIMER_t:n_signal(void* addr, uintptr_t signal)

{

static int count = 0;

if (addr == &timer) {

  timer.do_start(interval);       // 重置定时器

  // 处理定时器事务

  GPIOAs.DMASK.Regs = ~0b111100;

  GPIOAs.DOUT.Regs = (count << 2) ^ 0b111100;

  count ++;

}

else {

  task_t:n_signal(addr, signal);

}

}

bool task_LOOK_TIMER_t::send_message(int msg)

{

return mbox.do_tryput(msg);



}

#ifdef LOOK_SCHEDULING_PRIORITY

instantiate::task<task_LOOK_TIMER_t, LOOK_STACK_SIZE> task_LOOK_TIMER(0);

#else

instantiate::task<task_LOOK_TIMER_t, LOOK_STACK_SIZE> task_LOOK_TIMER;

#endif