1˵
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    KEIL MDK-ARM 5.34.0.0
    Ӳ    N32G003F5S7-STB V1.0

3ʹ˵
    1ϵͳʱӣ48MHz
    2BeeperʱԴLSI 32kHz
    3˿ڣ
	BEEPER_GPIO      PA14   AF_PP  
	BEEPER_N_GPIO  PB0     AF_PP

    4Բ
       aش븴λ
       bʾ鿴ΣһʼBEEPER_GPIOBEEPER_N_GPIOΣ
            һʱBEEPER_N_GPIOرգ·ر  
	
4ע
     

1. Function description
    This example shows the usage of the buzzer module.
    
2. Use environment
    Software  environment: KEIL MDK-ARM 5.34.0.0
    Hardware environment: N32G003F5S7-STB V1.0

3. Instructions for use
     1. System clock: 48MHz
     2. Beeper clock source: LSI 32kHz
     3. Output port
	BEEPER_GPIO      PA14   AF_PP  
	BEEPER_N_GPIO  PB0     AF_PP

     4. Test steps and phenomenon
        a. Compile and download the code to reset and run.
        b. View the waveform with an oscilloscope, BEEPER_GPIO and BEEPER_N_GPIO output complementary waveforms at first, 
	BEEPER_N_GPIO output off after a while, and finally both outputs off .

4. Matters needing attention
    None