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esp-idf
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components
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esp_system
morris 722fde218d uart: add default source clock for all targets 3 yıl önce
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include 68e5d9d585 Remove IRAM_ATTR from any function declarations 4 yıl önce
ld b5de3ec953 esp_common: rename EXT_RAM_ATTR to EXT_RAM_BSS_ATTR to make it clearer 3 yıl önce
port b530632f33 esp32c2: fix soc_caps defines 3 yıl önce
test 722fde218d uart: add default source clock for all targets 3 yıl önce
test_eh_frame_parser a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 4 yıl önce
CMakeLists.txt 595df1d3fa Merge branch 'refactor/move_rtc_ctrl_to_esp_hw_support' into 'master' 3 yıl önce
Kconfig d2872095f9 soc: moved kconfig options out of the target component. 3 yıl önce
README.md 32aa5f7e25 esp_system: add notes on timekeeping 5 yıl önce
app.lf bbc599493e esp32: move common fragment definitions 5 yıl önce
crosscore_int.c a8c3fe56c8 This commit add to GDBstup: 4 yıl önce
debug_stubs.c bb9cd84cdc debug_stubs: Refactor and add support for RISCV 4 yıl önce
eh_frame_parser.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 4 yıl önce
esp_err.c c16ceafa5c esp_common: move esp_err 5 yıl önce
esp_ipc.c 483149e41b global: fix some potential out-of-bounds issue 3 yıl önce
esp_system.c 27f5c90e2e freertos: Fix usage of vTaskSuspendAll()/xTaskResumeAll() 4 yıl önce
fpga_overrides.c 09487761cf ESP8684: add freertos, hal, esp_system support 4 yıl önce
freertos_hooks.c 9274a062fb esp-system: removed esp_phy and nvs dependencies, change app update and pm to weak dependencies 4 yıl önce
int_wdt.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 4 yıl önce
linker.lf 9069f70db3 system: add option to enable undefined behavior sanitizer (UBSAN) 4 yıl önce
panic.c 9274a062fb esp-system: removed esp_phy and nvs dependencies, change app update and pm to weak dependencies 4 yıl önce
sdkconfig.rename bb88338118 system: move kconfig options out of target component 4 yıl önce
sdkconfig.rename.esp32 d2872095f9 soc: moved kconfig options out of the target component. 3 yıl önce
sdkconfig.rename.esp32c3 d2872095f9 soc: moved kconfig options out of the target component. 3 yıl önce
sdkconfig.rename.esp32h2 d2872095f9 soc: moved kconfig options out of the target component. 3 yıl önce
sdkconfig.rename.esp32s2 d2872095f9 soc: moved kconfig options out of the target component. 3 yıl önce
sdkconfig.rename.esp32s3 d2872095f9 soc: moved kconfig options out of the target component. 3 yıl önce
stack_check.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 4 yıl önce
startup.c 81f2a94f9a esp_system: make dependencies on vfs and esp_wifi optional 3 yıl önce
system_time.c cf049e15ed esp8684: rename target to esp32c2 4 yıl önce
task_wdt.c 57fd78f5ba freertos: Remove legacy data types 4 yıl önce
ubsan.c 0d86151b82 esp_system: fix ubsan builtins' prototypes to suppress Wbuiltin-declaration-mismatch 4 yıl önce
xt_wdt.c 9ab4abfb46 hw_support: move rtc_ctrl from driver to hw_support 3 yıl önce

README.md

System Notes

Timekeeping

The following are the timekeeping mechanisms available and their differences:

  1. System time (esp_system_get_time)

Time with the origin at g_startup_time. The implementation is not handled by esp_system, but it does provide a default implementation using RTC timer. Currently, esp_timer provides system time, since the hardware timers are under the control of that component. However, no matter the underlying timer, the system time provider should maintain the definition of having the origin point at g_startup_time.

  1. esp_timer time (esp_timer_get_time)

This is the time read from an underlying hardware timer, controlled through config. Origin is at the point where the underlying timer starts counting.

  1. newlib time (gettimeofday)

Timekeeping function in standard library. Can be set (settimeofday) or moved forward/backward (adjtime); with the possibility of the changes being made persistent through config. Currently implemented in terms of system time, as the point of origin is fixed. If persistence is enabled, RTC time is also used in conjuction with system time.

  1. RTC time (esp_rtc_get_time_us)

Time read from RTC timer.