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Merge branch 'bugfix/warn_rc32k_use_in_kconfig_v5.2' into 'release/v5.2'

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fix(clk): add an inevitable kconfig option to be selected to use rc32k (v5.2)

See merge request espressif/esp-idf!35966
This commit is contained in:
Michael (XIAO Xufeng)
2025-01-07 15:49:51 +08:00
parent 721def344a 47c9382cc2
commit b3b14bdf43
13 changed files with 15 additions and 43 deletions
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6
docs/en/api-reference/peripherals/clk_tree.rst
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@@ -75,12 +75,6 @@ Root clocks generate reliable clock signals. These clock signals then pass throu
A clock signal generated by an external circuit can be connected to {IDF_TARGET_RC_SLOW_CLK} to be the clock source for the ``RTC_SLOW_CLK``. This clock can also be calibrated to get its exact frequency.
.. only:: SOC_CLK_RC32K_SUPPORTED
- Internal 32 kHz RC Oscillator (RC32K)
The exact frequency of this clock can be computed in runtime through calibration.
Typically, the frequency of the signal generated from an RC oscillator circuit is less accurate and more sensitive to the environment compared to the signal generated from a crystal. {IDF_TARGET_NAME} provides several clock source options for the ``RTC_SLOW_CLK``, and it is possible to make the choice based on the requirements for system time accuracy and power consumption. For more details, please refer to :ref:`rtc-clock-source-choice`.
Module Clocks

2
docs/en/api-reference/system/system_time.rst
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@@ -47,8 +47,6 @@ The RTC timer has the following clock sources:
:not esp32c6 and not esp32h2 and not esp32p4: - ``Internal {IDF_TARGET_INT_OSC_FRE} oscillator, divided by 256 ({IDF_TARGET_INT_OSC_FRE_DIVIDED})``: Provides better frequency stability than the ``Internal {IDF_TARGET_RTC_CLK_FRE} RC oscillator`` at the expense of a higher (by 5 μA) Deep-sleep current consumption. It also does not require external components.
:esp32c6 or esp32h2 or esp32p4: - ``Internal 32 kHz RC oscillator``
The choice depends on your requirements for system time accuracy and power consumption in sleep modes. To modify the RTC clock source, set :ref:`CONFIG_RTC_CLK_SRC` in project configuration.
More details about the wiring requirements for the external crystal or external oscillator, please refer to {IDF_TARGET_HARDWARE_DESIGN_URL}.

6
docs/zh_CN/api-reference/peripherals/clk_tree.rst
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@@ -75,12 +75,6 @@
将外部电路生成的时钟信号连接到 {IDF_TARGET_RC_SLOW_CLK}，可作为 ``RTC_SLOW_CLK`` 的时钟源。通过校准，可以计算该时钟信号的实际频率。
.. only:: SOC_CLK_RC32K_SUPPORTED
- 内部 32 kHz RC 振荡器 (RC32K)
在运行时，通过校准，可以计算该时钟信号的实际频率。
与晶振产生的信号相比，从 RC 振荡器电路产生的信号通常精度较低，且容易受环境影响。因此，{IDF_TARGET_NAME} 为 ``RTC_SLOW_CLK`` 提供了几种时钟源选项，可以根据对系统时间精度和对功耗的要求选择。更多详情，请参阅 :ref:`rtc-clock-source-choice`。
模块时钟

2
docs/zh_CN/api-reference/system/system_time.rst
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@@ -47,8 +47,6 @@ RTC 定时器有以下时钟源：
:not esp32c6 and not esp32h2 and not esp32p4: - ``内置 {IDF_TARGET_INT_OSC_FRE} 振荡器的 256 分频时钟 ({IDF_TARGET_INT_OSC_FRE_DIVIDED})``：频率稳定性优于 ``内置 {IDF_TARGET_RTC_CLK_FRE} RC 振荡器``，同样无需外部元件，但 Deep-sleep 模式下电流消耗更高（比默认模式高 5 μA）。
:esp32c6 or esp32h2 or esp32p4: - ``内置 32 kHz RC 振荡器``
时钟源的选择取决于系统时间精度要求和睡眠模式下的功耗要求。要修改 RTC 时钟源，请在项目配置中设置 :ref:`CONFIG_RTC_CLK_SRC`。
想要了解外置晶振或外置振荡器的更多布线要求，请参考 {IDF_TARGET_HARDWARE_DESIGN_URL}。