QCC512x QCC302x earbud工程 LED 配置

earbud 工程配置 LED

1、修改“av_headset_config.h”,修改需要的LED数量

工程默认使用的是 HAVE_3_LEDS 这个宏，可以 “av_headset_config.h” 搜索这个宏，定位到需要修改的地方。

下面将这个宏附近的上下文贴出来，此处主要是增加了 HAVE_NO_LED 和 HAVE_2_LEDS ，默认只有1和3，由于我只需要用到2个LED，就增加一个宏即可。

#if defined(HAVE_NO_LED)

#define appConfigNumberOfLeds()  (0)

/*! PIO to control LED0 */
#define appConfigLed0Pio()       (0)
/*! PIO to control LED1 (not used) */
#define appConfigLed1Pio()       (0)
/*! PIO to control LED2 (not used) */
#define appConfigLed2Pio()       (0)
#elif defined(HAVE_1_LED)

/*! The number of LEDs av_headset_led will control. If one LED is configured,
    it will use appConfigLed0Pio(), if two LEDs are configured it will use
    appConfigLed0Pio() and appConfigLed1Pio() etc. */
#define appConfigNumberOfLeds()  (1)

/*! PIO to control LED0 */
#define appConfigLed0Pio()       CHIP_LED_0_PIO
/*! PIO to control LED1 (not used) */
#define appConfigLed1Pio()       (0)
/*! PIO to control LED2 (not used) */
#define appConfigLed2Pio()       (0)

/* 注意：此处是增加的内容 */
#elif defined(HAVE_2_LEDS)

/* The number of LEDs av_headset_led will control. */
#define appConfigNumberOfLeds()  (2)
/*! PIO to control LED0 */
#define appConfigLed0Pio()       CHIP_LED_0_PIO
/*! PIO to control LED1 */
#define appConfigLed1Pio()       CHIP_LED_1_PIO
/*! PIO to control LED2 */
#define appConfigLed2Pio()       (0)


#elif defined(HAVE_3_LEDS)

/* The number of LEDs av_headset_led will control. */
#define appConfigNumberOfLeds()  (3)
/*! PIO to control LED0 */
#define appConfigLed0Pio()       CHIP_LED_0_PIO
/*! PIO to control LED1 */
#define appConfigLed1Pio()       CHIP_LED_1_PIO
/*! PIO to control LED2 */
#define appConfigLed2Pio()       CHIP_LED_2_PIO

#else
#error LED config not correctly defined.
#endif
           

之后要在工程属性中修改一下，使用新定义的值。

2、修改 “av_headset_ui.c” ，修改 LED 的状态

以修改2个 LED 为例，修改使用2个LED时的定义，并且增加颜色组合。

#if (appConfigNumberOfLeds() == 3)
#define LED_0_STATE  (1 << 0)
#define LED_1_STATE  (1 << 1)
#define LED_2_STATE  (1 << 2)
#elif (appConfigNumberOfLeds() == 2)
/* We only have 2 LED so map all control to the same LED */
#define LED_0_STATE  (1 << 0)
#define LED_1_STATE  (1 << 1)
#define LED_2_STATE  (1 << 1)
#else
/* We only have 1 LED so map all control to the same LED */
#define LED_0_STATE  (1 << 0)
#define LED_1_STATE  (1 << 0)
#define LED_2_STATE  (1 << 0)
#endif

#define LED_RED     (LED_0_STATE)
#define LED_BLUE    (LED_1_STATE)
#define LED_GREEN   (LED_2_STATE)
#define LED_WHITE   (LED_0_STATE | LED_1_STATE | LED_2_STATE)
#define LED_PURPLE  (LED_RED | LED_BLUE)
           

3、LED 事件状态

在“av_headset_ui.c”文件中，刚才的宏定义下方，就是定义 LED 事件的地方，可参考工程原有代码的写法来改写。