terry LAI / Mbed 2 deprecated ESDC2014-pwm

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Dependencies:   mbed

Fork of ESDC2014 by terry LAI

buzzer.cpp

Committer:
terryLAI
Date:
2014-07-03
Revision:
2:442902ec3aa1
Parent:
1:cbec1283a16a
Child:
4:a377ecb9364f

File content as of revision 2:442902ec3aa1:

/******************************************************

****┏┓          ┏┓
**┏┛┻━━━━━━┛┻┓
**┃                 ┃
**┃      ━━━      ┃
**┃  ┳┛       ┗┳ ┃
**┃                 ┃
**┃ '''    ┻   ''' ┃
**┃                 ┃
**┗━━┓       ┏━━┛
*******┃       ┃
*******┃       ┃
*******┃       ┃
*******┃       ┗━━━━━━━━┓
*******┃                      ┃━┓
*******┃      NO BUG          ┏━┛
*******┃                      ┃
*******┗━┓  ┓  ┏━┏━┓  ━┛
***********┃  ┛  ┛    ┃  ┛  ┛
***********┃  ┃  ┃    ┃  ┃  ┃
***********┗━┛━┛     ┗━┛━┛

This part is added by project ESDC2014 of CUHK team.
All the code with this header are under GPL open source license.
This program is running on Mbed Platform 'mbed LPC1768' avaliable in 'http://mbed.org'.
**********************************************************/

#include "buzzer.h"

extern "C" void mbed_reset();
 
Buzzer::Buzzer(MyDigitalOut* buzzer)
{
    this->_buzzer = buzzer;
    ON();
    wait(0.1);
    OFF();
    wait(0.1);
    ON();
    wait(0.1);
    OFF();
    wait(0.1);
    ON();
    wait(0.2);
    OFF();
}

Buzzer::~Buzzer(){}

void Buzzer::ON()
{
    *_buzzer = 0;
}

void Buzzer::OFF()
{
    *_buzzer = 1;
}

void Buzzer::setFlag()
{
    flag=1;
}

void Buzzer::cleanFlag()
{
    flag=0;
}

void Buzzer::check_time_out()
{
    if(flag == 1)
    {
        ON();
        wait(5);
        mbed_reset();
    }
    else
    {
        OFF();
    }
}

void Buzzer::time_out_init()
{
    setFlag();
    time_out.detach();
    time_out.attach(this, &Buzzer::check_time_out, TIME_OUT);
}