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esp-idf
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components
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esp_system
Marius Vikhammer 67d0a10548 Merge branch 'bugfix/rtc_brownout_isr_handler_stall' into 'master' 3 éve
..
include bf10146a15 esp_system, vfs: fix incomplete blocking reads in vfs_cdcacm 3 éve
ld 523aacd413 esp_system: allow defining priorities for startup functions 3 éve
port 67d0a10548 Merge branch 'bugfix/rtc_brownout_isr_handler_stall' into 'master' 3 éve
test 6005cc9163 hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 3 éve
test_apps c0568611dd docs: changes docs supported targets tables 3 éve
test_eh_frame_parser a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 3 éve
.build-test-rules.yml 05d2357062 feat: use standalone project idf-build-apps for find/build apps utils 3 éve
CMakeLists.txt 22d771bf51 esp32c2: fix gcov example build 3 éve
Kconfig e073fc4254 esp_system: Increase IPC stack size for ESP32-S3 3 éve
README.md 32aa5f7e25 esp_system: add notes on timekeeping 4 éve
app.lf bbc599493e esp32: move common fragment definitions 4 éve
check_system_init_priorities.py 42654927d5 esp_system: add a script to check the startup priorities 3 éve
crosscore_int.c 6005cc9163 hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 3 éve
debug_stubs.c bb9cd84cdc debug_stubs: Refactor and add support for RISCV 4 éve
eh_frame_parser.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 3 éve
esp_err.c ca7c9947fc esp_system: fix address printed by ESP_ERROR_CHECK 3 éve
esp_ipc.c ccc184de51 ipc: Increase stacksize when compiling with -O0 3 éve
esp_system.c 27f5c90e2e freertos: Fix usage of vTaskSuspendAll()/xTaskResumeAll() 3 éve
fpga_overrides.c 09487761cf ESP8684: add freertos, hal, esp_system support 4 éve
freertos_hooks.c 6005cc9163 hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 3 éve
int_wdt.c 6005cc9163 hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 3 éve
linker.lf 3254f8deae esp_system: usb_console: fix restart when Wi-Fi is working 3 éve
panic.c 0bac33ed41 esp_system: Remove deprecate section from esp_cpu.h 3 éve
sdkconfig.rename bb88338118 system: move kconfig options out of target component 4 éve
sdkconfig.rename.esp32 0687daf2c8 kconfig: move remaining kconfig options out of target component 3 éve
sdkconfig.rename.esp32c3 d2872095f9 soc: moved kconfig options out of the target component. 3 éve
sdkconfig.rename.esp32h2 d2872095f9 soc: moved kconfig options out of the target component. 3 éve
sdkconfig.rename.esp32s2 d2872095f9 soc: moved kconfig options out of the target component. 3 éve
sdkconfig.rename.esp32s3 d2872095f9 soc: moved kconfig options out of the target component. 3 éve
stack_check.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 3 éve
startup.c da91fb7a81 system: moved placement of disable rom log efuse in startup flow 3 éve
system_init_fn.txt 3254f8deae esp_system: usb_console: fix restart when Wi-Fi is working 3 éve
system_time.c cf049e15ed esp8684: rename target to esp32c2 4 éve
task_wdt.c c7fbcd754f esp_system: TWDT needs to deregister idle hook callback on esp_task_wdt_deinit() 3 éve
ubsan.c 6005cc9163 hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 3 éve
xt_wdt.c bff6826ee1 bugfix (esp_system): made xt_wdt spinlock static 3 éve

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.