#MmiUtil_Beep
#MmiUtil_ErrorSound
#MmiUtil_Warning


##函数引用
```
#include "MmiUtil.h"

```

##函数声明
```
/* --------------------------------------------------------------------------
* FUNCTION NAME: MmiUtil_Beep
* DESCRIPTION:   鸣叫300ms等待200ms
* PARAMETERS:
* RETURN:
* ------------------------------------------------------------------------ */
void MmiUtil_Beep(void);

/* --------------------------------------------------------------------------
* FUNCTION NAME: MmiUtil_ErrorSound
* DESCRIPTION:   鸣叫300ms等待200ms再鸣叫300ms
* PARAMETERS:
* RETURN:
* ------------------------------------------------------------------------ */
void MmiUtil_ErrorSound(void);

/* --------------------------------------------------------------------------
* FUNCTION NAME: MmiUtil_Warning.
* DESCRIPTION:   显示警告信息，等待按键（超时退出）
* PARAMETERS:
*   text (in) -- 警告信息
* RETURN:
*   0     -- 超时
*   key_value -- 按键值
* NOTES:
* ------------------------------------------------------------------------ */
sint MmiUtil_Warning(char *text);


```
##函数返回
```

```

##Sample
```
int demo( void )
{
    MmiUtil_Warning("Warn!");
        .....
}
```

##注意事项

```

```

##延伸阅读
```
error_tone();
normal_tone();
```