要使能定时器,可首先设置counter_en为true,然后调用函数timer_init,或者直接调用函数timer_start。您可通过调用函数timer_set_counter_value来指定定时器的首个计数值。要检查定时器的当前值,调用函数timer_get_counter_value或timer_get_counter_time_sec。 可通过调用函数timer_p
timer_isr_callback_add(BSP_TIMER_GROUP, BSP_TIMER, timer_group_isr_callback, 0, 1);//注册中断服务函数 } void bsp_timer_start() //定时器开始 { timer_start(BSP_TIMER_GROUP, BSP_TIMER); } void bsp_timer_pause() //定时器停止 { timer_pause(BSP_TIMER_GROUP, BSP_TIMER); } 1. 2....
{ // 初始化定时器 timer_config_t config = { .divider = 16, // 分频系数 .counter_dir = TIMER_COUNT_UP, .counter_en = TIMER_PAUSE, .alarm_en = TIMER_ALARM_EN, .auto_reload = TIMER_AUTORELOAD_EN, .intr_type = TIMER_INTR_LEVEL, }; timer_init(TIMER_GROUP_0, TIMER_0, &...
环境是esp-idf v4.4.3,用的是官方的timer_group例程 修改如下 timer_config_t config = { .divider = TIMER_DIVIDER, .counter_dir = TIMER_COUNT_DOWN, .counter_en = TIMER_PAUSE, .alarm_en = TIMER_ALARM_EN, .auto_reload = auto_reload, }; // default clock source is APB timer...
timer_set_counter_value()这个API可以设定定时器的起始值; timer_pause(). 这个API可以随时停止定时器; timer_start().这个API可以重新开始计时; 警告: timer_set_alarm_value()这个API用来设置一个报警; timer_set_alarm()这个API被用来使能一个报警;起始timer_init()也可以使能报警; ...
gpio_init();//初始化gpio/*设置定时器初始化参数*/timer_config_t config={ .divider=8,//分频系数[2-65535].counter_dir = TIMER_COUNT_UP,//计数方式是向上计数.counter_en = TIMER_PAUSE,//调用timer_init函数以后不启动计数,调用timer_start时才开始计数.alarm_en = TIMER_ALARM_EN,//到达计数值启...
divider = TIMER_DIVIDER, //定时器预分频;esp32-c3的APB_CLK=80MHz,80MHz/TIMER_DIVIDER(16)=5MHz .counter_dir = TIMER_COUNT_UP, //计数器向上计数,从0开始 .counter_en = TIMER_PAUSE, //计数器暂时中止 .alarm_en = TIMER_ALARM_EN, //定时器警报使能 .auto_reload = auto_reload, //1:...
timer_config_str.counter_en = TIMER_PAUSE;//定时器计数失能 timer_config_str.alarm_en = TIMER_ALARM_EN;//使能定时器报警 timer_config_str.intr_type = TIMER_INTR_LEVEL;//定时器中断模式为电平模式 timer_config_str.auto_reload = 1; //使能自动装载 ...
So the correct way to stop a pwm timer is: Check if the timer is not used by MPY anymore Pause the timer using IDF function Deconfigure the timer using IDF function Testing Tested with IDF 5.2.2 on ESP32
环境是esp-idf v4.4.3,用的是官方的timer_group例程 修改如下 Code: Untitled.c Select all timer_config_t config = { .divider = TIMER_DIVIDER, .counter_dir = TIMER_COUNT_DOWN, .counter_en = TIMER_PAUSE, .alarm_en = TIMER_ALARM_EN, .auto_reload = auto_reload, }; // default clock ...