HRSDK-GDB-7P92 *描 述: 蜂鸣器演示主程序 （1）单击K4：演奏《两只老虎》 （2）单击K3：演奏《新年好》 （3）单击K2：演奏《粉刷匠》 （4）单击K1：演奏《拔萝卜》 （5）单击K5：演奏音符音阶

buzzer_demo\buzzer_demo.hrccproj
...........\buzzer_demo.sln
...........\buzzer_demo.suo
...........\c\common.h
...........\.\int.c
...........\.\key.c
...........\.\key.h
...........\.\main.c
...........\.\main.c.bak$0
...........\.\main.h
...........\.\pwm.c
...........\.\pwm.h
...........\h\common.h
...........\.\key.h
...........\.\main.h
...........\.\pwm.h
...........\c
...........\h
buzzer_demo

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