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    1TIM3 øжϣʱתIO
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      KEIL MDK-ARM V5.34.0.0
    Ӳ      N32G031C8L7-STB V1.0
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                    HSE=8M,PLL=48M,AHB=48M,APB1=12M,APB2=48M,TIM3 CLK=24M
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                    TIM3 жϴ򿪣ȼ1
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                    PA6ѡΪIO
                    PA7ѡΪIO
                    PA8ѡΪIO
                    PA9ѡΪIO
        4TIM
                    TIM3ʹж
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        1򿪵ģʽʾ߼ǹ۲PA6Ĳ
        2кTIM3жٷתPA6ƽ
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1. Function description
     1. TIM3 uses the update interrupt to generate timing rollover IO
2. Use environment
     Software development environment: KEIL MDK-ARM V5.34.0.0
     Hardware environment: Developed based on the evaluation board N32G031C8L7-STB V1.0
3. Instructions for use
     System Configuration;
         1. Clock source:
                     HSE=8M, PLL=48M, AHB=48M, APB1=12M, APB2=48M, TIM3 CLK=24M
         2. Interruption:
                     TIM3 update interrupt is turned on, priority level 1
         3. Port configuration:
                     PA6 is selected as IO output
                     PA7 is selected as IO output
                     PA8 is selected as IO output
                     PA9 is selected as IO output
         4. TIM:
                     TIM3 enables periodic interrupts
     Instructions:
         1. After compiling, turn on the debug mode, and use an oscilloscope or logic analyzer to observe the PA6 waveform
         2. After the program is running, the periodic interrupt of TIM3 comes to reverse the level of PA6
4. Matters needing attention
    None