Input Capture indirect mode:输入间接捕获模式Input Capture triggered by TRC:TRC触发输入捕获Output ...
Input Capture triggered by TRC:TRC触发输入捕获 Output Compare No Output:输出比较无输出 Output Compare CH1:输出比较CH1 PWM Generation No Output:PWM生成无输出 PWM Generation CH1:PWM生成CH1 Forced Output CH1:强制输出CH1 我首先需要配置一个1ms触发一次的定时器中断(1Khz),我们先通过芯片对应的datasheet查到...
Capture_Period = 0; // 存捕获比较寄存器的值的变量的值清0 TIM_ICUserValueStructure.Capture_CcrValue = 0; // 当第一次捕获到上升沿之后,就把捕获边沿配置为下降沿 GENERAL_TIM_OCxPolarityConfig_FUN(GENERAL_TIM, TIM_ICPolarity_Falling); // 开始捕获标准置1 TIM_ICUserValueStructure.Capture_Start...
An input can be mapped on two capture channels (typically to differentiate rising-edge from falling-edge capture), see the figure on the top right. TRC input can be chosen as the capture trigger, it is connected to one of the ITR inputs (timer-to-timer interconnect). The edge ...
打开STM32CubeMX工具,配置定时器4,将PB8配置为定时器4通道3(复用推挽输出),PB9配置为定时器4通道4(复用推挽输出)。 3.3 定时器4 基本配置及PWM模式配置 配置定时器通道模式为PWM模式,设置分频系数为72,重装载值为500,设置有效电平为低电平。
本示例实现 IO 输出模式–PWM 波形输出。 以 LED 驱动为例, 使用定时器高级功能(PWM 模式), 实现呼吸灯效果。 1.硬件接口 本硬件平台有3个LED灯分别为LED2、LED3、LED4LED2接PA1,LED2接PB8,LED4接PB9,硬件原理图如下: 根据STM32引脚定义手册或者STM32CUbeMX软件我们可得知定时器4的CH1和...
Input filter & TI1FP2 edge detector IC1 Prescaler IC1PS OC1REF Capture/Compare 1 register DTG Output OC1 control TIMx_CH1N TRC CC2I U OC1N CC2I TIMx_CH2 TI2FP1 Input filter & TI2FP2 edge detector IC2 Prescaler IC2PS Capture/Compare 2 register OC2REF DTG Output OC...
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Program the polarity by writing the CCxNP/CCxP bits to select between rising, falling or both edges. The input capture module is used to capture the value of the counter after a transition is detected by the corresponding input channel. To get the external signal period, two consecutive ...