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高宏宇
ac12d716c1
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2 years ago | |
|---|---|---|
| .. | ||
| .settings | 2 years ago | |
| Core | 2 years ago | |
| Debug | 2 years ago | |
| Drivers | 2 years ago | |
| .cproject | 2 years ago | |
| .mxproject | 2 years ago | |
| .project | 2 years ago | |
| PWM_DRV8833 Debug.launch | 2 years ago | |
| PWM_DRV8833.ioc | 2 years ago | |
| Readme.md | 2 years ago | |
| STM32F103C8TX_FLASH.ld | 2 years ago | |
Readme.md
PWM_DRV8833
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需要打开外部晶振，将SYSCLK配置到72MHz，APB timer clocks也配置到72MHz
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给PA0、PA1分别配置TIM2_CH1、TIM2_CH2
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进入Timers - TIM2
- Clock Source配置Internal Clock
- Channel1配置PWM Generation CH1
- Channel2配置PWM Generation CH2
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Prescaler配置为72-1，Counter Period配置为100-1，这样PWM频率就是10kHz
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HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_1) 启动PWM输出
CH1和CH2，同时只能有1个通道输出
切换输出通道，可以切换正/反转
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__HAL_TIM_SET_COMPARE(&htim2, TIM_CHANNEL_1, 80) 可以改变占空比
占空比低于60%有可能导致电机转不起来
占空比 = 此数值 / Counter Period
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接线
- 用4P杜邦线，连接开发板和模块，模块接GND-VCC-IN2-IN1
- 电机两根线连接模块OUT1-OUT2