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esp-idf
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components
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esp_system
Alexey Gerenkov 1bbefc3e5d debug_stubs: Refactor and add support for RISCV преди 4 години
..
include 4869b3cd4a WDT: Add support for XTAL32K Watchdog timer преди 4 години
ld 7d9652dccf System/Security: Memprot API unified (ESP32C3,ESP32S3) преди 4 години
port 1bbefc3e5d debug_stubs: Refactor and add support for RISCV преди 4 години
test d730c84038 ci: fix "can set sleep wake stub from stack in RTC RAM" test case failure преди 4 години
test_eh_frame_parser 0771bd1711 espsystem: Rearchitecture and fix eh_frame_parser bugs преди 4 години
CMakeLists.txt 1bbefc3e5d debug_stubs: Refactor and add support for RISCV преди 4 години
Kconfig 1bbefc3e5d debug_stubs: Refactor and add support for RISCV преди 4 години
Makefile.projbuild b06dba7823 esp32: move app linker scripts преди 4 години
README.md 32aa5f7e25 esp_system: add notes on timekeeping преди 4 години
app.lf bbc599493e esp32: move common fragment definitions преди 4 години
component.mk d47d413e25 esp_system: fix high level interrupt handler not linked for GNU Make преди 4 години
crosscore_int.c 5e3689ae0f esp32h2: update esp_system and esp_hw_support to support esp32h2 преди 4 години
debug_stubs.c 1bbefc3e5d debug_stubs: Refactor and add support for RISCV преди 4 години
eh_frame_parser.c 0771bd1711 espsystem: Rearchitecture and fix eh_frame_parser bugs преди 4 години
esp_err.c c16ceafa5c esp_common: move esp_err преди 5 години
esp_system.c 7d9652dccf System/Security: Memprot API unified (ESP32C3,ESP32S3) преди 4 години
fpga_overrides.c 1a626ef6ca esp32: App can boot on FPGA image преди 4 години
freertos_hooks.c 0e0914476c esp_common: move freertos hooks преди 5 години
int_wdt.c e2fb413329 components/bt: add config option to choose Bluetooth intterupt level. преди 4 години
linker.lf 9069f70db3 system: add option to enable undefined behavior sanitizer (UBSAN) преди 4 години
panic.c b5606f5e81 esp_system: make the abort operation compatible with clang преди 4 години
sdkconfig.rename 5e3689ae0f esp32h2: update esp_system and esp_hw_support to support esp32h2 преди 4 години
stack_check.c 6e80811ca2 log: Remove redundant definition of LOG_LOCAL_LEVEL преди 4 години
startup.c b748053e2e startup: init timer before calling esp_apptrace_tmo_init преди 4 години
system_time.c 5e3689ae0f esp32h2: update esp_system and esp_hw_support to support esp32h2 преди 4 години
task_wdt.c b23de0f8a1 twdt: Fix timeout decimal literals to prevent uint32_t overflow преди 4 години
ubsan.c 9069f70db3 system: add option to enable undefined behavior sanitizer (UBSAN) преди 4 години
xt_wdt.c 4869b3cd4a WDT: Add support for XTAL32K Watchdog timer преди 4 години

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.