buzzer.h

来自「小区可视对讲键盘检测程序.利用pt6964芯片.」· C头文件 代码 · 共 6 行

extern void  initial_buzzer(void);
extern	 void open_buzzer(void);
extern	 void close_buzzer(void);
extern void buzzer_test(void) ;
extern unsigned char buzzer_timer;
extern unsigned char buzzer_timer_trigger;