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                打開hal\_led.h文件,接口列表如下: * 驅動程序初始化: ``` void hal_led_init(void); ``` * 驅動程序反初始化: ``` void hal_led_deinit(void); ``` * LED 驅動程序所需要的定時輪詢(該函數需要上層進行周期性調用): ``` void hal_led_on_timer(uint16_t ms); ``` * 打開一路 LED,成功返回文件描述符: ``` int hal_led_open(GPIO_TypeDef *gpio, uint16_t pin, uint8_t on_level); ``` * 關閉指定 LED: ``` void hal_led_close(int fd); ``` * 設置 LED開: ``` void hal_led_set_on(int fd); ``` * 設置 LED關: ``` void hal_led_set_off(int fd); ``` * 翻轉 LED: ``` void hal_led_toggle(int fd); ``` * LED 慢閃: ``` void hal_led_slow_blink(int fd, uint32_t expire, uint8_t on_at_the_end); ``` * LED 快閃: ``` void hal_led_fast_blink(int fd, uint32_t expire, uint8_t on_at_the_end); ``` * 停止 LED 閃爍: ``` void hal_led_stop_blink(int fd); ``` <br/>
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