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esp-idf/components/esp_system
History
Michael (XIAO Xufeng) c546de8d82 Merge branch 'feature/apply_new_version_logic' into 'master' 
all: Apply new version logic (major * 100 + minor)

Closes IDF-4932 and IDF-4939

See merge request espressif/esp-idf!18787
2022-11-04 16:01:32 +08:00
..
include lwip:bugfix for increase ping task stack size 2022-10-19 10:49:13 +08:00
ld esp32c6: add esp_system support 2022-09-06 09:13:20 +00:00
port backup dma: force clear reset signal to fix the backup dma operation failure caused by RTC_SW_CPU_RST 2022-10-20 03:24:49 +00:00
task_wdt esp_timer: add a function to restart timer 2022-10-18 04:42:27 +00:00
test all: Apply new version logic (major * 100 + minor) 2022-11-03 08:36:23 +00:00
test_apps docs: changes docs supported targets tables 2022-07-14 08:26:32 +08:00
test_eh_frame_parser esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 2022-03-07 11:18:08 +05:30
.build-test-rules.yml soc: Add a soc cap, SOC_CLK_RC_FAST_D256_SUPPORTED, for whether the target has the RC_FAST_D256 clock 2022-11-01 11:23:26 +08:00
app.lf esp32: move common fragment definitions 2021-03-31 19:17:33 +08:00
check_system_init_priorities.py esp_system: add a script to check the startup priorities 2022-07-12 16:58:14 +02:00
CMakeLists.txt Storage: Partition APIs moved to the new component 'esp_partition' 2022-11-02 21:54:45 +01:00
crosscore_int.c TWDT: the Kconfig option ESP_TASK_WDT_EN is now used to enable Task Watchdog 2022-09-15 14:37:59 +08:00
debug_stubs.c debug_stubs: Refactor and add support for RISCV 2021-11-04 01:33:24 +03:00
eh_frame_parser.c esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 2022-03-07 11:18:08 +05:30
esp_err.c esp_system: fix address printed by ESP_ERROR_CHECK 2022-07-12 17:01:47 +02:00
esp_ipc.c ipc: Increase stacksize when compiling with -O0 2022-07-18 13:55:03 +08:00
esp_system.c esp32c6: add esp_system support 2022-09-06 09:13:20 +00:00
fpga_overrides.c esp32c6: add esp_system support 2022-09-06 09:13:20 +00:00
freertos_hooks.c hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 2022-07-22 00:06:06 +08:00
int_wdt.c WDT: implement interrupt wdt and task wdt for ESP32-C2 2022-09-15 14:37:59 +08:00
Kconfig TWDT: the Kconfig option ESP_TASK_WDT_EN is now used to enable Task Watchdog 2022-09-15 14:37:59 +08:00
linker.lf esp_system: usb_console: fix restart when Wi-Fi is working 2022-07-28 17:15:03 +02:00
panic.c [Panic] also print to secondary USB Serial/JTAG Console 2022-10-25 14:04:32 -07:00
README.md esp_system: add notes on timekeeping 2021-03-25 16:09:33 +08:00
sdkconfig.rename TWDT: the Kconfig option ESP_TASK_WDT_EN is now used to enable Task Watchdog 2022-09-15 14:37:59 +08:00
sdkconfig.rename.esp32 kconfig: move remaining kconfig options out of target component 2022-05-23 17:57:45 +08:00
sdkconfig.rename.esp32c3 soc: moved kconfig options out of the target component. 2022-04-21 12:09:43 +08:00
sdkconfig.rename.esp32h2 soc: moved kconfig options out of the target component. 2022-04-21 12:09:43 +08:00
sdkconfig.rename.esp32s2 soc: moved kconfig options out of the target component. 2022-04-21 12:09:43 +08:00
sdkconfig.rename.esp32s3 soc: moved kconfig options out of the target component. 2022-04-21 12:09:43 +08:00
stack_check.c esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 2022-03-07 11:18:08 +05:30
startup.c all: Apply new version logic (major * 100 + minor) 2022-11-03 08:36:23 +00:00
system_init_fn.txt esp_system: usb_console: fix restart when Wi-Fi is working 2022-07-28 17:15:03 +02:00
system_time.c esp32c6: add esp_system support 2022-09-06 09:13:20 +00:00
ubsan.c hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 2022-07-22 00:06:06 +08:00
xt_wdt.c bugfix (esp_system): made xt_wdt spinlock static 2022-07-22 08:17:59 +00:00

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.