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fix(rtc_clk): fix the issue of missing configuration for calibration …
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…cycles of the internal 32 kHz RC
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esp-lis committed Jul 4, 2023
1 parent 0e1bcdd commit 963fac9
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Showing 2 changed files with 6 additions and 6 deletions.
6 changes: 3 additions & 3 deletions components/esp_hw_support/port/esp32c6/Kconfig.rtc
Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,9 @@ endchoice

config RTC_CLK_CAL_CYCLES
int "Number of cycles for RTC_SLOW_CLK calibration"
default 3000 if RTC_CLK_SRC_EXT_CRYS || RTC_CLK_SRC_EXT_OSC || RTC_CLK_SRC_INT_8MD256
default 3000 if RTC_CLK_SRC_EXT_CRYS || RTC_CLK_SRC_EXT_OSC || RTC_CLK_SRC_INT_RC32K
default 1024 if RTC_CLK_SRC_INT_RC
range 0 27000 if RTC_CLK_SRC_EXT_CRYS || RTC_CLK_SRC_EXT_OSC || RTC_CLK_SRC_INT_8MD256
range 0 27000 if RTC_CLK_SRC_EXT_CRYS || RTC_CLK_SRC_EXT_OSC || RTC_CLK_SRC_INT_RC32K
range 0 32766 if RTC_CLK_SRC_INT_RC
help
When the startup code initializes RTC_SLOW_CLK, it can perform
Expand All @@ -33,7 +33,7 @@ config RTC_CLK_CAL_CYCLES
When this option is set to 0, clock calibration will not be performed at
startup, and approximate clock frequencies will be assumed:

- 150000 Hz if internal RC oscillator is used as clock source. For this use value 1024.
- 136000 Hz if internal RC oscillator is used as clock source. For this use value 1024.
- 32768 Hz if the 32k crystal oscillator is used. For this use value 3000 or more.
In case more value will help improve the definition of the launch of the crystal.
If the crystal could not start, it will be switched to internal RC.
6 changes: 3 additions & 3 deletions components/esp_hw_support/port/esp32h2/Kconfig.rtc
Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,9 @@ endchoice

config RTC_CLK_CAL_CYCLES
int "Number of cycles for RTC_SLOW_CLK calibration"
default 3000 if RTC_CLK_SRC_EXT_CRYS || RTC_CLK_SRC_EXT_OSC || RTC_CLK_SRC_INT_8MD256
default 3000 if RTC_CLK_SRC_EXT_CRYS || RTC_CLK_SRC_EXT_OSC || RTC_CLK_SRC_INT_RC32K
default 1024 if RTC_CLK_SRC_INT_RC
range 0 27000 if RTC_CLK_SRC_EXT_CRYS || RTC_CLK_SRC_EXT_OSC || RTC_CLK_SRC_INT_8MD256
range 0 27000 if RTC_CLK_SRC_EXT_CRYS || RTC_CLK_SRC_EXT_OSC || RTC_CLK_SRC_INT_RC32K
range 0 32766 if RTC_CLK_SRC_INT_RC
help
When the startup code initializes RTC_SLOW_CLK, it can perform
Expand All @@ -33,7 +33,7 @@ config RTC_CLK_CAL_CYCLES
When this option is set to 0, clock calibration will not be performed at
startup, and approximate clock frequencies will be assumed:

- 150000 Hz if internal RC oscillator is used as clock source. For this use value 1024.
- 136000 Hz if internal RC oscillator is used as clock source. For this use value 1024.
- 32768 Hz if the 32k crystal oscillator is used. For this use value 3000 or more.
In case more value will help improve the definition of the launch of the crystal.
If the crystal could not start, it will be switched to internal RC.

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