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63d4911cdb
Using own spinlock for each list (TASK and ISR disp method) Reduced the dependency of ISR on the TASK dispatch method
83 lines
3.4 KiB
Plaintext
83 lines
3.4 KiB
Plaintext
menu "High resolution timer (esp_timer)"
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config ESP_TIMER_PROFILING
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bool "Enable esp_timer profiling features"
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default n
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help
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If enabled, esp_timer_dump will dump information such as number of times the timer was started,
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number of times the timer has triggered, and the total time it took for the callback to run.
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This option has some effect on timer performance and the amount of memory used for timer
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storage, and should only be used for debugging/testing purposes.
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config ESP_TIME_FUNCS_USE_RTC_TIMER # [refactor-todo] remove when timekeeping and persistence are separate
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bool
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config ESP_TIME_FUNCS_USE_ESP_TIMER # [refactor-todo] remove when timekeeping and persistence are separate
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bool
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config ESP_TIME_FUNCS_USE_NONE # [refactor-todo] remove when timekeeping and persistence are separate
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bool
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config ESP_TIMER_TASK_STACK_SIZE
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int "High-resolution timer task stack size"
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default 3584
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range 2048 65536
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help
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Configure the stack size of "timer_task" task. This task is used
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to dispatch callbacks of timers created using ets_timer and esp_timer
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APIs. If you are seing stack overflow errors in timer task, increase
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this value.
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Note that this is not the same as FreeRTOS timer task. To configure
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FreeRTOS timer task size, see "FreeRTOS timer task stack size" option
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in "FreeRTOS" menu.
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config ESP_TIMER_INTERRUPT_LEVEL
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int "Interrupt level"
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default 1
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range 1 3 if IDF_TARGET_ESP32
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range 1 1 if !IDF_TARGET_ESP32
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help
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It sets the interrupt level for esp_timer ISR in range 1..3.
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A higher level (3) helps to decrease the ISR esp_timer latency.
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config ESP_TIMER_SUPPORTS_ISR_DISPATCH_METHOD
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bool "Support ISR dispatch method"
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default n
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help
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Allows using ESP_TIMER_ISR dispatch method (ESP_TIMER_TASK dispatch method is also avalible).
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- ESP_TIMER_TASK - Timer callbacks are dispatched from a high-priority esp_timer task.
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- ESP_TIMER_ISR - Timer callbacks are dispatched directly from the timer interrupt handler.
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The ISR dispatch can be used, in some cases, when a callback is very simple
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or need a lower-latency.
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choice ESP_TIMER_IMPL
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prompt "Hardware timer to use for esp_timer"
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default ESP_TIMER_IMPL_TG0_LAC if IDF_TARGET_ESP32
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default ESP_TIMER_IMPL_SYSTIMER
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help
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esp_timer APIs can be implemented using different hardware timers.
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- "FRC2 (legacy)" implementation has been used in ESP-IDF v2.x - v4.1.
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- "LAC timer of Timer Group 0" implementation is simpler, and has smaller
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run time overhead because software handling of timer overflow is not needed.
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- "SYSTIMER" implementation is similar to "LAC timer of Timer Group 0" but for ESP32-S2 chip.
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config ESP_TIMER_IMPL_FRC2
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bool "FRC2 (legacy) timer"
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depends on IDF_TARGET_ESP32
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config ESP_TIMER_IMPL_TG0_LAC
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bool "LAC timer of Timer Group 0"
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depends on IDF_TARGET_ESP32
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config ESP_TIMER_IMPL_SYSTIMER
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bool "SYSTIMER"
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depends on !IDF_TARGET_ESP32
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endchoice
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endmenu # esp_timer
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