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esp-idf
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components
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esp_system
Jakob Hasse 33a3616635 refactor (bootloader_support, efuse)!: remove target-specific rom includes 3 anni fa
..
include d0c10eb83a Fix datatype conversion compiler error #9254 3 anni fa
ld 3c9856bdd1 (Xtensa) Build: add .xt.prop and .xt.lit to the compiled ELF file 3 anni fa
port 33a3616635 refactor (bootloader_support, efuse)!: remove target-specific rom includes 3 anni fa
test c8752cee6a clk_tree: Refactor rtc_clk.c by adding HAL layer for clock subsystem 3 anni fa
test_apps e8b5096f52 ulp-riscv: add support for using ADC as well as an example show-casing it. 3 anni fa
test_eh_frame_parser a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 3 anni fa
CMakeLists.txt 38e5043ae8 esp_psram: new psram component 3 anni fa
Kconfig a9c8065030 Kconfig: Update dependencies to avoid invalid configurations 3 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 a8c3fe56c8 This commit add to GDBstup: 3 anni fa
debug_stubs.c bb9cd84cdc debug_stubs: Refactor and add support for RISCV 4 anni fa
eh_frame_parser.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 3 anni fa
esp_err.c a690a87829 spi_flash: Remove legacy spi_flash drivers 3 anni fa
esp_ipc.c 483149e41b global: fix some potential out-of-bounds issue 3 anni fa
esp_system.c 27f5c90e2e freertos: Fix usage of vTaskSuspendAll()/xTaskResumeAll() 3 anni fa
fpga_overrides.c 09487761cf ESP8684: add freertos, hal, esp_system support 4 anni fa
freertos_hooks.c 9274a062fb esp-system: removed esp_phy and nvs dependencies, change app update and pm to weak dependencies 3 anni fa
int_wdt.c bd8b03888c esp_system: Tidy up INT WDT 3 anni fa
linker.lf 9069f70db3 system: add option to enable undefined behavior sanitizer (UBSAN) 4 anni fa
panic.c 9274a062fb esp-system: removed esp_phy and nvs dependencies, change app update and pm to weak dependencies 3 anni fa
sdkconfig.rename bb88338118 system: move kconfig options out of target component 3 anni fa
sdkconfig.rename.esp32 0687daf2c8 kconfig: move remaining kconfig options out of target component 3 anni fa
sdkconfig.rename.esp32c3 d2872095f9 soc: moved kconfig options out of the target component. 3 anni fa
sdkconfig.rename.esp32h2 d2872095f9 soc: moved kconfig options out of the target component. 3 anni fa
sdkconfig.rename.esp32s2 d2872095f9 soc: moved kconfig options out of the target component. 3 anni fa
sdkconfig.rename.esp32s3 d2872095f9 soc: moved kconfig options out of the target component. 3 anni fa
stack_check.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 3 anni fa
startup.c a690a87829 spi_flash: Remove legacy spi_flash drivers 3 anni fa
system_time.c cf049e15ed esp8684: rename target to esp32c2 4 anni fa
task_wdt.c c7fbcd754f esp_system: TWDT needs to deregister idle hook callback on esp_task_wdt_deinit() 3 anni fa
ubsan.c 0d86151b82 esp_system: fix ubsan builtins' prototypes to suppress Wbuiltin-declaration-mismatch 3 anni fa
xt_wdt.c 895a3e1bb2 esp_intr: Split RTC interrupt, making some of signals can be triggered with cache disabled 3 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.