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esp_system
Ivan Grokhotkov c70a69b1dd Merge branch 'bugfix/remove_ref_non_ex_options' into 'master' 4 tahun lalu
..
include 68e5d9d585 Remove IRAM_ATTR from any function declarations 4 tahun lalu
ld c1cbd7bbf6 cache/mmu: implememnt cache and mmu hal APIs in bootloader 4 tahun lalu
port c70a69b1dd Merge branch 'bugfix/remove_ref_non_ex_options' into 'master' 4 tahun lalu
test c70a69b1dd Merge branch 'bugfix/remove_ref_non_ex_options' into 'master' 4 tahun lalu
test_eh_frame_parser a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 4 tahun lalu
CMakeLists.txt 9274a062fb esp-system: removed esp_phy and nvs dependencies, change app update and pm to weak dependencies 4 tahun lalu
Kconfig 2f9d47c708 Merge branch 'feature/gdbstub_rt_multicore' into 'master' 4 tahun lalu
README.md 32aa5f7e25 esp_system: add notes on timekeeping 5 tahun lalu
app.lf bbc599493e esp32: move common fragment definitions 5 tahun lalu
crosscore_int.c a8c3fe56c8 This commit add to GDBstup: 4 tahun lalu
debug_stubs.c bb9cd84cdc debug_stubs: Refactor and add support for RISCV 4 tahun lalu
eh_frame_parser.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 4 tahun lalu
esp_err.c c16ceafa5c esp_common: move esp_err 5 tahun lalu
esp_ipc.c 6f9fc0ba8e esp_system: Place ipc_task semaphores on DRAM 4 tahun lalu
esp_system.c 27f5c90e2e freertos: Fix usage of vTaskSuspendAll()/xTaskResumeAll() 4 tahun lalu
fpga_overrides.c 09487761cf ESP8684: add freertos, hal, esp_system support 4 tahun lalu
freertos_hooks.c 9274a062fb esp-system: removed esp_phy and nvs dependencies, change app update and pm to weak dependencies 4 tahun lalu
int_wdt.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 4 tahun lalu
linker.lf 9069f70db3 system: add option to enable undefined behavior sanitizer (UBSAN) 4 tahun lalu
panic.c 9274a062fb esp-system: removed esp_phy and nvs dependencies, change app update and pm to weak dependencies 4 tahun lalu
sdkconfig.rename bb88338118 system: move kconfig options out of target component 4 tahun lalu
sdkconfig.rename.esp32 bb88338118 system: move kconfig options out of target component 4 tahun lalu
sdkconfig.rename.esp32c3 bb88338118 system: move kconfig options out of target component 4 tahun lalu
sdkconfig.rename.esp32h2 23c55946a6 kconfig: also parse target specific sdkconfig.rename.TARGET files 4 tahun lalu
sdkconfig.rename.esp32s2 bb88338118 system: move kconfig options out of target component 4 tahun lalu
sdkconfig.rename.esp32s3 bb88338118 system: move kconfig options out of target component 4 tahun lalu
stack_check.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 4 tahun lalu
startup.c 9274a062fb esp-system: removed esp_phy and nvs dependencies, change app update and pm to weak dependencies 4 tahun lalu
system_time.c cf049e15ed esp8684: rename target to esp32c2 4 tahun lalu
task_wdt.c 57fd78f5ba freertos: Remove legacy data types 4 tahun lalu
ubsan.c 0d86151b82 esp_system: fix ubsan builtins' prototypes to suppress Wbuiltin-declaration-mismatch 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.