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Martin Vychodil 3f26866533 System/Security: wrong check of the Memprot feature in esp_restart()/panic_restart() 4 tahun lalu
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include 4869b3cd4a WDT: Add support for XTAL32K Watchdog timer 4 tahun lalu
ld 881e1b0fd5 deep sleep: add deep sleep support for esp32s3 4 tahun lalu
port 3f26866533 System/Security: wrong check of the Memprot feature in esp_restart()/panic_restart() 4 tahun lalu
test e8188e5d8f ci: replacing old header with new SPDX header style 4 tahun lalu
test_eh_frame_parser 0771bd1711 espsystem: Rearchitecture and fix eh_frame_parser bugs 4 tahun lalu
CMakeLists.txt 4869b3cd4a WDT: Add support for XTAL32K Watchdog timer 4 tahun lalu
Kconfig 9298db641e deep sleep: fix some rtc fast memory definition errors in esp32s3 4 tahun lalu
Makefile.projbuild b06dba7823 esp32: move app linker scripts 4 tahun lalu
README.md 32aa5f7e25 esp_system: add notes on timekeeping 4 tahun lalu
app.lf bbc599493e esp32: move common fragment definitions 4 tahun lalu
component.mk d47d413e25 esp_system: fix high level interrupt handler not linked for GNU Make 4 tahun lalu
crosscore_int.c 5e3689ae0f esp32h2: update esp_system and esp_hw_support to support esp32h2 4 tahun lalu
dbg_stubs.c 2a5d0a041e gcov: add stub table size entry 4 tahun lalu
eh_frame_parser.c 0771bd1711 espsystem: Rearchitecture and fix eh_frame_parser bugs 4 tahun lalu
esp_err.c c16ceafa5c esp_common: move esp_err 5 tahun lalu
esp_system.c 3f26866533 System/Security: wrong check of the Memprot feature in esp_restart()/panic_restart() 4 tahun lalu
fpga_overrides.c 1a626ef6ca esp32: App can boot on FPGA image 4 tahun lalu
freertos_hooks.c 0e0914476c esp_common: move freertos hooks 5 tahun lalu
int_wdt.c e2fb413329 components/bt: add config option to choose Bluetooth intterupt level. 4 tahun lalu
linker.lf 9069f70db3 system: add option to enable undefined behavior sanitizer (UBSAN) 4 tahun lalu
panic.c b5606f5e81 esp_system: make the abort operation compatible with clang 4 tahun lalu
sdkconfig.rename 5e3689ae0f esp32h2: update esp_system and esp_hw_support to support esp32h2 4 tahun lalu
stack_check.c 6e80811ca2 log: Remove redundant definition of LOG_LOCAL_LEVEL 4 tahun lalu
startup.c a939f7d34b light sleep: add software workaround for esp32s3 gpio reset issue 4 tahun lalu
system_time.c 5e3689ae0f esp32h2: update esp_system and esp_hw_support to support esp32h2 4 tahun lalu
task_wdt.c b23de0f8a1 twdt: Fix timeout decimal literals to prevent uint32_t overflow 4 tahun lalu
ubsan.c 9069f70db3 system: add option to enable undefined behavior sanitizer (UBSAN) 4 tahun lalu
xt_wdt.c 4869b3cd4a WDT: Add support for XTAL32K Watchdog timer 4 tahun lalu

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.