gptimer_config_t timer_config = { .clk_src = GPTIMER_CLK_SRC_DEFAULT, // 定时器时钟来源 选择APB作为默认选项 .direction = GPTIMER_COUNT_UP, // 向上计数 .resolution_hz = 1e6, }; // 将配置设置到定时器 gptimer_new_timer(&timer_config, &gp
esp_timerset of APIs provide such facility. Internally,esp_timeruses a 32-bit hardware timer (FRC1, “legacy” timer).esp_timerprovides one-shot and periodic timers, microsecond time resolution, and 64-bit range. esp_timerAPI提供这些。其内部,esp_timer使用32位硬件定时器(FRC1,“传统”定时器...
GPTIMER_CLK_SRC_XTAL：选择XTAL作为时钟源 GPTIMER_CLK_SRC_DEFAULT：选择APB作为默认选项 direction：设置定时器的计数方向，gptimer_count_direction_t中列出多个支持的方向，仅可选择其中一种 GPTIMER_COUNT_DOWN：向下计数，即从65535到0 GPTIMER_COUNT_UP：向上计数，即从0到65535 resolution_hz:设置内部计数器...
/** *@brief 初始化通用定时器 *@paramcounts: 计数值 *@param resolution: 定时器周期,resolution = 1s = 1000000μs (此处,定时器以微秒作为计算单位,) *@retval 无 */ voidgptim_int_init(uint16_t counts, uint16_t resolution) { gptimer_alarm_config_t alarm_config; uint64_t count; /* 配...
high precision timer PostbyReiner1210»Mon Apr 02, 2018 10:42 pm Hello, I know that with esp_timer_get_time() I can get a timestamp on µsec base. Is there an even better time base resolution possible? Idea behind: Build a low budget logic analyzer. For this the edges of a si...
例子:初始化一个LEDC通道在高速模式ledc_timer_config_t ledc_timer = { .duty_resolution = LEDC_TIMER_13_BIT, // 分辨率 .freq_hz = 5000, // 频率 .speed_mode = LEDC_HIGH_SPEED_MODE, // 高速模式 .timer_num = LEDC_TIMER_0 // 定时器 }; ledc_timer_config(&ledc_timer); ledc_...
ledc_timer_config_tledc_timer = {.duty_resolution = LEDC_TIMER_13_BIT,// 分辨率.freq_hz =5000,// 频率.speed_mode = LEDC_HIGH_SPEED_MODE,// 高速模式.timer_num = LEDC_TIMER_0// 定时器};ledc_timer_config(&ledc_timer);ledc_channel_...
(1) 创建新定时器gptimer_new_timer() 示例: 创建分辨率为1 MHz 的通用定时器: gptimer_handle_tgptimer =NULL;gptimer_config_ttimer_config = { .clk_src = GPTIMER_CLK_SRC_DEFAULT, .direction = GPTIMER_COUNT_UP, .resolution_hz =1*1000*1000,// 1MHz, 1 tick = 1us};ESP_ERROR_CHECK(...
②:gptimer_alarm_config_t::reload_count代表警报事件发生时要重载的计数值。此配置仅在gptimer_alarm_config_t::auto_reload_on_alarm设置为true时生效。 ③:gptimer_alarm_config_t::auto_reload_on_alarm标志设置是否使能自动重载功能。如果使能,硬件定时器将在警报事件发生时立即将gptimer_alarm_config_t::...
voidapp_main(void){ledc_timer_config_t ledc_timer={.duty_resolution=LEDC_TIMER_10_BIT,// resolution of PWM duty.freq_hz=1,// frequency of PWM signal.speed_mode=LEDC_HIGH_SPEED_MODE,// timer mode.timer_num=LEDC_TIMER_0,// timer index.clk_cfg=LEDC_AUTO_CLK,// Auto select the sour...