menu "High resolution timer (esp_timer)" config ESP_TIMER_PROFILING bool "Enable esp_timer profiling features" default n help If enabled, esp_timer_dump will dump information such as number of times the timer was started, number of times the timer has triggered, and the total time it took for the callback to run. This option has some effect on timer performance and the amount of memory used for timer storage, and should only be used for debugging/testing purposes. config ESP_TIMER_RTC_USE # [refactor-todo] remove when timekeeping and persistence are separate bool config ESP_TIMER_TASK_STACK_SIZE int "High-resolution timer task stack size" default 3584 range 2048 65536 help Configure the stack size of "timer_task" task. This task is used to dispatch callbacks of timers created using ets_timer and esp_timer APIs. If you are seing stack overflow errors in timer task, increase this value. Note that this is not the same as FreeRTOS timer task. To configure FreeRTOS timer task size, see "FreeRTOS timer task stack size" option in "FreeRTOS" menu. choice ESP_TIMER_IMPL prompt "Hardware timer to use for esp_timer" default ESP_TIMER_IMPL_TG0_LAC if IDF_TARGET_ESP32 default ESP_TIMER_IMPL_SYSTIMER help esp_timer APIs can be implemented using different hardware timers. - "FRC2 (legacy)" implementation has been used in ESP-IDF v2.x - v4.1. - "LAC timer of Timer Group 0" implementation is simpler, and has smaller run time overhead because software handling of timer overflow is not needed. - "SYSTIMER" implementation is similar to "LAC timer of Timer Group 0" but for ESP32-S2 chip. config ESP_TIMER_IMPL_FRC2 bool "FRC2 (legacy) timer" depends on IDF_TARGET_ESP32 config ESP_TIMER_IMPL_TG0_LAC bool "LAC timer of Timer Group 0" depends on IDF_TARGET_ESP32 config ESP_TIMER_IMPL_SYSTIMER bool "SYSTIMER" depends on !IDF_TARGET_ESP32 endchoice endmenu # esp_timer