esp_clk_tree_lp_fast_get_freq_hz() function

Get frequency of LP_FAST_CLK (i.e. RTC_FAST_CLK)

Syntax

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Summary

Declaration

Definition

from esp_clk_tree_common.h:76

uint32_t esp_clk_tree_lp_fast_get_freq_hz(esp_clk_tree_src_freq_precision_t precision);

Implemented in esp_clk_tree_common.c:177

Arguments

Argument

Description

precision

Degree of precision of the returned frequency value, one of esp_clk_tree_src_freq_precision_t values

Return value

LP_FAST clock frequency, in Hz. Returns 0 if degree of precision is invalid or calibration failed.

References

Code

Location

Referrer

uint32_t esp_clk_tree_lp_fast_get_freq_hz(esp_clk_tree_src_freq_precision_t precision)

esp_clk_tree_common.c:177

uint32_t esp_clk_tree_lp_fast_get_freq_hz(esp_clk_tree_src_freq_precision_t precision);

esp_clk_tree_common.h:76

clk_src_freq = esp_clk_tree_lp_fast_get_freq_hz(precision);

esp_clk_tree.c:46

esp_clk_tree_src_get_freq_hz()

Call Tree

esp_clk_tree_lp_fast_get_freq_hz() is called by 1 function and calls 5 functions:

esp_clk_tree_src_get_freq_hz()

esp_clk_tree_lp_fast_get_freq_hz()

__assert_func()

clk_ll_rtc_fast_get_src()

clk_ll_rc_fast_get_divider()

esp_clk_tree_rc_fast_get_freq_hz()

clk_hal_xtal_get_freq_mhz()

Data Use

esp_clk_tree_lp_fast_get_freq_hz() reads 2 variables:

soc_rtc_fast_clk_src_t::SOC_RTC_FAST_CLK_SRC_XTAL_DIV

soc_rtc_fast_clk_src_t::SOC_RTC_FAST_CLK_SRC_RC_FAST

esp_clk_tree_lp_fast_get_freq_hz()

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