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esp-idf
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components
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esp_system
flyingcys 93be550f3e add __rt_rvstack 2 anni fa
..
include 3f95fdcb15 feat (esp_system): simple os abstraction layer for critical sections 3 anni fa
ld 93be550f3e add __rt_rvstack 2 anni fa
port 92402217b8 Add config for RT-Thread 3 anni fa
test 746f4b814c uart: move frequency of clock sources out of HAL 3 anni fa
test_apps c0568611dd docs: changes docs supported targets tables 3 anni fa
test_eh_frame_parser a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 3 anni fa
.build-test-rules.yml 05d2357062 feat: use standalone project idf-build-apps for find/build apps utils 3 anni fa
CMakeLists.txt 0071ea498f esp_app_format: Fixed build errors and resolved dependencies 3 anni fa
Kconfig ee3423834e kconfig: refactor xtal freq kconfig to common configuration item 3 anni fa
README.md 32aa5f7e25 esp_system: add notes on timekeeping 4 anni fa
app.lf bbc599493e esp32: move common fragment definitions 4 anni fa
check_system_init_priorities.py 42654927d5 esp_system: add a script to check the startup priorities 3 anni fa
crosscore_int.c 92402217b8 Add config for RT-Thread 3 anni fa
debug_stubs.c bb9cd84cdc debug_stubs: Refactor and add support for RISCV 4 anni fa
eh_frame_parser.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 3 anni fa
esp_err.c ca7c9947fc esp_system: fix address printed by ESP_ERROR_CHECK 3 anni fa
esp_ipc.c ccc184de51 ipc: Increase stacksize when compiling with -O0 3 anni fa
esp_system.c 27f5c90e2e freertos: Fix usage of vTaskSuspendAll()/xTaskResumeAll() 3 anni fa
fpga_overrides.c 09487761cf ESP8684: add freertos, hal, esp_system support 4 anni fa
freertos_hooks.c 6005cc9163 hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 3 anni fa
int_wdt.c 6005cc9163 hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 3 anni fa
linker.lf 3254f8deae esp_system: usb_console: fix restart when Wi-Fi is working 3 anni fa
panic.c 0071ea498f esp_app_format: Fixed build errors and resolved dependencies 3 anni fa
sdkconfig.rename bb88338118 system: move kconfig options out of target component 3 anni fa
sdkconfig.rename.esp32 0687daf2c8 kconfig: move remaining kconfig options out of target component 3 anni fa
sdkconfig.rename.esp32c3 d2872095f9 soc: moved kconfig options out of the target component. 3 anni fa
sdkconfig.rename.esp32h2 d2872095f9 soc: moved kconfig options out of the target component. 3 anni fa
sdkconfig.rename.esp32s2 d2872095f9 soc: moved kconfig options out of the target component. 3 anni fa
sdkconfig.rename.esp32s3 d2872095f9 soc: moved kconfig options out of the target component. 3 anni fa
stack_check.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 3 anni fa
startup.c 92402217b8 Add config for RT-Thread 3 anni fa
system_init_fn.txt 3254f8deae esp_system: usb_console: fix restart when Wi-Fi is working 3 anni fa
system_time.c cf049e15ed esp8684: rename target to esp32c2 4 anni fa
task_wdt.c 92402217b8 Add config for RT-Thread 3 anni fa
ubsan.c 6005cc9163 hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 3 anni fa
xt_wdt.c bff6826ee1 bugfix (esp_system): made xt_wdt spinlock static 3 anni fa

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.