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SourceVuESP-IDF Framework and ExamplesESP-IDFi2s_hal_calc_mclk_precise_division()

i2s_hal_calc_mclk_precise_division() function

Helper function for calculating the precise mclk division by sclk and mclk

Syntax

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Summary

Declaration

Definition

from i2s_hal.h:140

void i2s_hal_calc_mclk_precise_division(uint32_t sclk, uint32_t mclk, hal_utils_clk_div_t *mclk_div);

Implemented in i2s_hal.c:51

Arguments

Argument

Description

sclk

system clock

mclk

module clock

mclk_div

mclk division coefficients, including integer part and decimal part

References

Code

Location

Referrer

void i2s_hal_calc_mclk_precise_division(uint32_t sclk, uint32_t mclk, hal_utils_clk_div_t *mclk_div)

i2s_hal.c:51

void i2s_hal_calc_mclk_precise_division(uint32_t sclk, uint32_t mclk, hal_utils_clk_div_t *mclk_div);

i2s_hal.h:140

i2s_hal_calc_mclk_precise_division(I2S_BASE_CLK, mclk, &mclk_div);

adc_hal.c:134

adc_hal_digi_sample_freq_config()

i2s_hal_calc_mclk_precise_division(sclk, mclk, &mclk_div_coeff);

dac_dma.c:102

s_dac_dma_periph_set_clock()

i2s_hal_calc_mclk_precise_division(clk_info->sclk, clk_info->mclk, &mclk_div);

i2s_hal.c:113

i2s_hal_set_tx_clock()

i2s_hal_calc_mclk_precise_division(clk_info->sclk, clk_info->mclk, &mclk_div);

i2s_hal.c:130

_i2s_hal_set_rx_clock()

Call Tree

i2s_hal_calc_mclk_precise_division() is called by 4 functions and calls 1 function:

i2s_hal_set_tx_clock()

_i2s_hal_set_rx_clock()

s_dac_dma_periph_set_clock()

adc_hal_digi_sample_freq_config()

i2s_hal_calc_mclk_precise_division()

hal_utils_calc_clk_div_frac_accurate()

Data Use

i2s_hal_calc_mclk_precise_division():

i2s_hal_calc_mclk_precise_division()

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