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================================================================================
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样例使用说明
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Sample Description
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================================================================================
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功能描述：
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此样例演示了TIM1的单脉冲模式，CH2(PA09)引脚上的上升沿，触发计数器开始计数，当计数
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值与CCR1匹配时，CH1(PA08)输出高电平，直到计数器溢出，CH1再次输出低电平，计数器溢
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出后，定时器停止工作。
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Function descriptions:
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This sample demonstrates the one pulse mode of TIM1.The rising edge on the
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CH2(PA09) pin triggers the counter to start counting. when the count value
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matches CCR1,CH1(PA08) outputs a high level. When the counter overflows ,CH1
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outputs the low level again. After the counter overflows, the timer stops
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working.
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================================================================================
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测试环境：
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测试用板：PY32F403_STK
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MDK版本： 5.28
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IAR版本： 9.20
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GCC版本：GNU Arm Embedded Toolchain 10.3-2021.10
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Test environment:
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Test board: PY32F403_STK
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MDK Version: 5.28
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IAR Version: 9.20
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GCC Version: GNU Arm Embedded Toolchain 10.3-2021.10
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================================================================================
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使用步骤：
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1. 编译下载程序到MCU，并运行；
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2. 在PA09上产生一个上升沿；
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3. 通过示波器监测PA09和PA08引脚，可监测到波形;
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Example execution steps:
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1. compile and download the program to MCU and run it;
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2. Create a rising edge on PA09;
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3. Through the oscilloscope monitoring PA09 and PA08 pins, waveform can be
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observed;
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================================================================================
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注意事项：
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1. 输出效果见下图：
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____
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CH2 _________________________| |_________________________________________
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___________________________
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CH1 ______________________________________| |____
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<---Delay----><------Pulse--------------->
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2. 本例程脉冲宽度计算 (TIM1_ARR-TI1_CCR1)/CLK=（65535-16383）/8000000= 6.144ms
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Notes:
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1. The output effect is shown below:
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____
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CH2 _________________________| |_________________________________________
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___________________________
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CH1 ______________________________________| |____
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<---Delay----><------Pulse--------------->
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2. This example pulse width calculation
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(TIM1_ARR-TI1_CCR1)/CLK= (65535-16383)/8000,000 =6.144ms
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================================================================================ |