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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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此样例演示了使用TIM1产生“六步PWM信号”，每间隔1ms在SysTick中断中触发换向，实现无刷
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电机的换向。
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Function descriptions:
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This sample demonstrates how TIM1 can be used to generate a "six-step PWM signal."
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The commutation is triggered in the SysTick interrupt every 1ms to realize the
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commutation of the brushless motor.
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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. 使用逻辑分析仪观察引脚PA8/PA9/PA10/PB13/PB14/PB15的波形
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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. Observe PA8/PA9/PA10/PB13/PB14/PB15 waveforms with logic analyzer
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================================================================================
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注意事项：
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换向步骤和波形如下所示：
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第一步 第二步 第三步 第四步 第五步 第六步
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CH1 1 0 0 0 0 1
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CH1N 0 0 1 1 0 0
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CH2 0 0 0 1 1 0
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CH2N 1 1 0 0 0 0
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CH3 0 1 1 0 0 0
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CH3N 0 0 0 0 1 1
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CH1 (PA08) |||||||_________________________________|||||||
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CH1N (PB13) _______________||||||||||||||||________________
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CH2 (PA09) _______________________||||||||||||||||________
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CH2N (PB14) |||||||||||||||________________________________
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CH3 (PA10) _______||||||||||||||||________________________
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CH3N (PB15) ________________________________|||||||||||||||
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Notes:
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The commutation steps and waveforms are shown below:
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step 1 step 2 step 3 step 4 step 5 step 6
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CH1 1 0 0 0 0 1
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CH1N 0 0 1 1 0 0
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CH2 0 0 0 1 1 0
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CH2N 1 1 0 0 0 0
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CH3 0 1 1 0 0 0
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CH3N 0 0 0 0 1 1
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CH1 (PA08) |||||||_________________________________|||||||
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CH1N (PB13) _______________||||||||||||||||________________
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CH2 (PA09) _______________________||||||||||||||||________
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CH2N (PB14) |||||||||||||||________________________________
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CH3 (PA10) _______||||||||||||||||________________________
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CH3N (PB15) ________________________________|||||||||||||||
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================================================================================ |