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esp-idf
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components
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esp_system
morris d2473d0662 Merge branch 'feature/esp_rom_update_cpu_freq' into 'master' 2 år sedan
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include 67e9db7cf5 esp_system: Add reset reasons for USB_UART and USB_JTAG 2 år sedan
ld 5cbd311ecf system: add kconfig option for using parts of SRAM1 for IRAM 2 år sedan
port 67e9db7cf5 esp_system: Add reset reasons for USB_UART and USB_JTAG 2 år sedan
task_wdt 2a2bd0f8ff esp_system: Fix TIMG0 still enabled after Timer is freed 2 år sedan
test_apps dac64725af esp_system, heap: increase host test timeout for CI 2 år sedan
test_eh_frame_parser a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 3 år sedan
.build-test-rules.yml 914bb81b95 ci: move linux host tests to test app folder 2 år sedan
CMakeLists.txt fb7aafd348 esp_system: fix and reenable no-format warning 2 år sedan
Kconfig 6b8bc64f31 test: enable mbedtls esp_crt_bundle test for esp32h2 2 år sedan
README.md 32aa5f7e25 esp_system: add notes on timekeeping 4 år sedan
app.lf bbc599493e esp32: move common fragment definitions 4 år sedan
check_system_init_priorities.py 42654927d5 esp_system: add a script to check the startup priorities 3 år sedan
crosscore_int.c 8cc9260f86 ESP32H2: Add system support for ESP32H2 3 år sedan
debug_stubs.c fb7aafd348 esp_system: fix and reenable no-format warning 2 år sedan
eh_frame_parser.c a9fda54d39 esp_hw_support/esp_system: Re-evaluate header inclusions and include directories 3 år sedan
esp_err.c 44df5b31af feature: add ram loadable app support 3 år sedan
esp_ipc.c 23a290f29f esp_ipc: Use task notifications instead of semaphores 3 år sedan
esp_system.c 43784e7a24 memprot: move memprot functions out of IRAM 2 år sedan
fpga_overrides.c 4123e611dc esp_rom: add common ROM API to update CPU tick rate 2 år sedan
freertos_hooks.c 6005cc9163 hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 3 år sedan
int_wdt.c 5d26a0de9a wdt: add support for H2 2 år sedan
linker.lf db059b155a esp-system: move uncessary IRAM functions to flash 2 år sedan
panic.c c2f9392be5 Merge branch 'feature/h2_wdt' into 'master' 2 år sedan
sdkconfig.rename 5e5343d429 TWDT: Use the new TWDT Kconfig options in the examples and tests 3 år sedan
sdkconfig.rename.esp32 0687daf2c8 kconfig: move remaining kconfig options out of target component 3 år sedan
sdkconfig.rename.esp32c3 d2872095f9 soc: moved kconfig options out of the target component. 3 år sedan
sdkconfig.rename.esp32s2 d2872095f9 soc: moved kconfig options out of the target component. 3 år sedan
sdkconfig.rename.esp32s3 d2872095f9 soc: moved kconfig options out of the target component. 3 år sedan
stack_check.c 4d16f46a88 esp_system: fix placement of __stack_chk_fail from flash to RAM 3 år sedan
startup.c c3e701588e efuse: add efuse hal api 2 år sedan
system_init_fn.txt 9924d9f271 esp_system: usb_console support for ESP32-S3 2 år sedan
system_time.c 8cc9260f86 ESP32H2: Add system support for ESP32H2 3 år sedan
systick_etm.c 6c1d98d556 systimer: assign counter and alarm in esp_hw_support 3 år sedan
ubsan.c 6005cc9163 hal: Deprecate interrupt_controller_hal.h, cpu_hal.h and cpu_ll.h interfaces 3 år sedan
xt_wdt.c fb7aafd348 esp_system: fix and reenable no-format warning 2 år sedan

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.