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Dependencies:   C12832 MMA7660 mbed

sound.cpp

Committer:
ksaito
Date:
2018-03-07
Revision:
4:d61f6d186db0
Parent:
1:2967eac08981
Child:
5:614e3ac042df

File content as of revision 4:d61f6d186db0:

#include "mbed.h"
#include "commands.h"

PwmOut spkr(p26);

static void _Initialize(void) {
    spkr=0.0;
}

static void _Finalize(void) {
    _Initialize();
}

static float _SoundRange = 2000.0;

static void _ProcessInitialize(void) {
    _SoundRange = 2000.0;
}

static bool _ProcessIsContinue(void) {
    return _SoundRange < 10000.0;
}

static void _ProcessRunning(void) {
    spkr.period(1.0 / _SoundRange);
    spkr = 0.5;
    wait(0.1);
    
    _SoundRange += 100;
}

static void _Process(void) {
    _ProcessInitialize();
    while ( _ProcessIsContinue() ) {
        _ProcessRunning();
    }
}

COMMAND_DEFINE Command_sound = {"sound", 0x01, _Initialize, _Finalize, _Process,
    _ProcessInitialize, _ProcessIsContinue, _ProcessRunning
};