SourceVuESP-IDF Framework and ExamplesESP-IDFesp_clk_init()

esp_clk_init() function

Initialize clock-related settings Called from cpu_start.c, not intended to be called from other places. This function configures the CPU clock, RTC slow and fast clocks, and performs RTC slow clock calibration.

References

Code

Location

Referrer

__attribute__((weak)) void esp_clk_init(void)

clk.c:115

void esp_clk_init(void);

esp_clk_internal.h:37

esp_clk_init();

cpu_start.c:718

call_start_cpu0()

Call Tree

esp_clk_init() is called by 1 function and calls 17 functions:

call_start_cpu0()

esp_clk_init()

esp_cpu_get_cycle_count()

esp_cpu_set_cycle_count()

__assert_func()

rtc_clk_slow_freq_get_hz()

rtc_clk_fast_src_set()

rtc_clk_cpu_freq_mhz_to_config()

rtc_clk_cpu_freq_set_config()

rtc_clk_cpu_freq_get_config()

rtc_clk_xtal_freq_get()

rtc_clk_8m_enable()

rtc_clk_8md256_enabled()

esp_rom_output_tx_wait_idle()

wdt_hal_config_stage()

wdt_hal_write_protect_disable()

wdt_hal_write_protect_enable()

wdt_hal_feed()

select_rtc_slow_clk()

Data Use

esp_clk_init() reads 8 variables:

soc_rtc_fast_clk_src_t::SOC_RTC_FAST_CLK_SRC_RC_FAST

soc_xtal_freq_t::SOC_XTAL_FREQ_AUTO

rtc_cpu_freq_config_s::freq_mhz

wdt_stage_action_t::WDT_STAGE_ACTION_RESET_RTC

wdt_inst_t::WDT_RWDT

wdt_stage_t::WDT_STAGE0

slow_clk_sel_t::SLOW_CLK_150K

slow_clk_sel_t::SLOW_CLK_32K_XTAL

esp_clk_init()

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esp_clk_init() function

Syntax

Examples

References

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Data Use

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Implementations

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Lifecycle