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esp-idf
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esp_system
laokaiyao cf049e15ed esp8684: rename target to esp32c2 4 anni fa
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include cf049e15ed esp8684: rename target to esp32c2 4 anni fa
ld cf049e15ed esp8684: rename target to esp32c2 4 anni fa
port cf049e15ed esp8684: rename target to esp32c2 4 anni fa
test eddc196081 esp_clk: refactor target/clk.h to private/esp_clk.h 4 anni fa
test_eh_frame_parser 0771bd1711 espsystem: Rearchitecture and fix eh_frame_parser bugs 4 anni fa
CMakeLists.txt cf049e15ed esp8684: rename target to esp32c2 4 anni fa
Kconfig cf049e15ed esp8684: rename target to esp32c2 4 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
crosscore_int.c cf049e15ed esp8684: rename target to esp32c2 4 anni fa
debug_stubs.c bb9cd84cdc debug_stubs: Refactor and add support for RISCV 4 anni fa
eh_frame_parser.c 0771bd1711 espsystem: Rearchitecture and fix eh_frame_parser bugs 4 anni fa
esp_err.c c16ceafa5c esp_common: move esp_err 4 anni fa
esp_ipc.c f49787ac9f esp_system: ipc_isr does not use its own initialization task, it is done from ipc_task() 4 anni fa
esp_system.c cf049e15ed esp8684: rename target to esp32c2 4 anni fa
fpga_overrides.c 09487761cf ESP8684: add freertos, hal, esp_system support 4 anni fa
freertos_hooks.c 0e0914476c esp_common: move freertos hooks 4 anni fa
int_wdt.c cf049e15ed esp8684: rename target to esp32c2 4 anni fa
linker.lf 9069f70db3 system: add option to enable undefined behavior sanitizer (UBSAN) 4 anni fa
panic.c e22b4007d3 esp_hw_support: Removed deprecated CPU util functions 4 anni fa
sdkconfig.rename 5e3689ae0f esp32h2: update esp_system and esp_hw_support to support esp32h2 4 anni fa
stack_check.c 6e80811ca2 log: Remove redundant definition of LOG_LOCAL_LEVEL 4 anni fa
startup.c cf049e15ed esp8684: rename target to esp32c2 4 anni fa
system_time.c cf049e15ed esp8684: rename target to esp32c2 4 anni fa
task_wdt.c cf049e15ed esp8684: rename target to esp32c2 4 anni fa
ubsan.c 9069f70db3 system: add option to enable undefined behavior sanitizer (UBSAN) 4 anni fa
xt_wdt.c 4869b3cd4a WDT: Add support for XTAL32K Watchdog timer 4 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.