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esp-idf
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components
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esp_system
Marius Vikhammer 0687daf2c8 kconfig: move remaining kconfig options out of target component пре 3 година
..
include bd8b03888c esp_system: Tidy up INT WDT пре 3 година
ld b5de3ec953 esp_common: rename EXT_RAM_ATTR to EXT_RAM_BSS_ATTR to make it clearer пре 3 година
port 0687daf2c8 kconfig: move remaining kconfig options out of target component пре 3 година
test 7c02bde904 esp_system: Update task watchdog unit tests and example пре 3 година
test_apps b920676e59 pm: add test for RTC using 8MD256 as clock source пре 3 година
test_eh_frame_parser a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories пре 3 година
CMakeLists.txt 595df1d3fa Merge branch 'refactor/move_rtc_ctrl_to_esp_hw_support' into 'master' пре 3 година
Kconfig 0687daf2c8 kconfig: move remaining kconfig options out of target component пре 3 година
README.md 32aa5f7e25 esp_system: add notes on timekeeping пре 4 година
app.lf bbc599493e esp32: move common fragment definitions пре 4 година
crosscore_int.c a8c3fe56c8 This commit add to GDBstup: пре 3 година
debug_stubs.c bb9cd84cdc debug_stubs: Refactor and add support for RISCV пре 4 година
eh_frame_parser.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories пре 3 година
esp_err.c c16ceafa5c esp_common: move esp_err пре 4 година
esp_ipc.c 483149e41b global: fix some potential out-of-bounds issue пре 3 година
esp_system.c 27f5c90e2e freertos: Fix usage of vTaskSuspendAll()/xTaskResumeAll() пре 3 година
fpga_overrides.c 09487761cf ESP8684: add freertos, hal, esp_system support пре 4 година
freertos_hooks.c 9274a062fb esp-system: removed esp_phy and nvs dependencies, change app update and pm to weak dependencies пре 3 година
int_wdt.c bd8b03888c esp_system: Tidy up INT WDT пре 3 година
linker.lf 9069f70db3 system: add option to enable undefined behavior sanitizer (UBSAN) пре 4 година
panic.c 9274a062fb esp-system: removed esp_phy and nvs dependencies, change app update and pm to weak dependencies пре 3 година
sdkconfig.rename bb88338118 system: move kconfig options out of target component пре 3 година
sdkconfig.rename.esp32 0687daf2c8 kconfig: move remaining kconfig options out of target component пре 3 година
sdkconfig.rename.esp32c3 d2872095f9 soc: moved kconfig options out of the target component. пре 3 година
sdkconfig.rename.esp32h2 d2872095f9 soc: moved kconfig options out of the target component. пре 3 година
sdkconfig.rename.esp32s2 d2872095f9 soc: moved kconfig options out of the target component. пре 3 година
sdkconfig.rename.esp32s3 d2872095f9 soc: moved kconfig options out of the target component. пре 3 година
stack_check.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories пре 3 година
startup.c 81f2a94f9a esp_system: make dependencies on vfs and esp_wifi optional пре 3 година
system_time.c cf049e15ed esp8684: rename target to esp32c2 пре 4 година
task_wdt.c 5953bca376 esp_system: Add arbitrary user feature to TWDT пре 3 година
ubsan.c 0d86151b82 esp_system: fix ubsan builtins' prototypes to suppress Wbuiltin-declaration-mismatch пре 3 година
xt_wdt.c 9ab4abfb46 hw_support: move rtc_ctrl from driver to hw_support пре 3 година

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.