PWM 停止时间过长

Question

我正在使用带有 esp-idf 的 ESP32 来生成 PWM 以运行电机，这是我的初始化函数：

    mcpwm_gpio_init(MCPWM_UNIT_0, MCPWM0A, LOW_MOTOR_PWM);
    pwm_config.frequency = 5000;
    pwm_config.cmpr_a = 60.0;
    pwm_config.counter_mode = MCPWM_UP_COUNTER;
    pwm_config.duty_mode = MCPWM_DUTY_MODE_0;
    mcpwm_init(MCPWM_UNIT_0, MCPWM_TIMER_0, &pwm_config);
    mcpwm_stop(MCPWM_UNIT_0, MCPWM_TIMER_0);
    mcpwm_set_signal_low(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM0A);

这是我的停止功能：

mcpwm_set_signal_low(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM0A);
mcpwm_stop(MCPWM_UNIT_0, MCPWM_TIMER_0);
mcpwm_set_signal_low(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM0A);

我遇到的问题是电机停止但对我来说时间太长了。我看了看它需要将近 300 毫秒的电信号。这正常吗？有没有办法让它更快停止？

谢谢你:)

Answer 1

问题不是来自 pwm，而是来自未正确配置的传感器。谢谢！