ESP-IDF
i2s_hal_clock_info_t::sclk
is only used within ESP-IDF.
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ESP-IDF Framework and Examples
ESP-IDF
i2s_hal_clock_info_t::sclk
i2s_hal_clock_info_t::sclk field
I2S module clock
Syntax
Show:
Summary
Declaration
from
i2s_hal.h:111
uint32_t
sclk
;
Examples
References
from
examples
Code
Location
Referrer
uint32_t
sclk
;
/*!< I2S module clock */
i2s_hal.h:111
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()
clk_info
->
sclk
=
i2s_config_source_clock
(
i2s_num
,
p_i2s
[
i2s_num
]
->
use_apll
,
clk_info
->
mclk
)
;
i2s_legacy.c:759
i2s_calculate_adc_dac_clock()
clk_info
->
mclk_div
=
clk_info
->
sclk
/
clk_info
->
mclk
;
i2s_legacy.c:761
i2s_calculate_adc_dac_clock()
ESP_RETURN_ON_FALSE
(
clk_info
->
sclk
/
(
float
)
clk_info
->
mclk
>
1.99
,
ESP_ERR_INVALID_ARG
,
TAG
,
"sample rate is too large, the mclk division is below minimum value 2"
)
;
i2s_legacy.c:764
i2s_calculate_adc_dac_clock()
clk_info
->
sclk
=
i2s_config_source_clock
(
i2s_num
,
p_i2s
[
i2s_num
]
->
use_apll
,
clk_info
->
mclk
)
;
i2s_legacy.c:788
i2s_calculate_pdm_tx_clock()
clk_info
->
mclk_div
=
clk_info
->
sclk
/
clk_info
->
mclk
;
i2s_legacy.c:790
i2s_calculate_pdm_tx_clock()
ESP_RETURN_ON_FALSE
(
clk_info
->
sclk
/
(
float
)
clk_info
->
mclk
>
1.99
,
ESP_ERR_INVALID_ARG
,
TAG
,
"sample rate is too large, the mclk division is below minimum value 2"
)
;
i2s_legacy.c:793
i2s_calculate_pdm_tx_clock()
clk_info
->
sclk
=
i2s_config_source_clock
(
i2s_num
,
p_i2s
[
i2s_num
]
->
use_apll
,
clk_info
->
mclk
)
;
i2s_legacy.c:815
i2s_calculate_pdm_rx_clock()
clk_info
->
mclk_div
=
clk_info
->
sclk
/
clk_info
->
mclk
;
i2s_legacy.c:817
i2s_calculate_pdm_rx_clock()
ESP_RETURN_ON_FALSE
(
clk_info
->
sclk
/
(
float
)
clk_info
->
mclk
>
1.99
,
ESP_ERR_INVALID_ARG
,
TAG
,
"sample rate is too large, the mclk division is below minimum value 2"
)
;
i2s_legacy.c:820
i2s_calculate_pdm_rx_clock()
clk_info
->
sclk
=
i2s_config_source_clock
(
i2s_num
,
p_i2s
[
i2s_num
]
->
use_apll
,
clk_info
->
mclk
)
;
i2s_legacy.c:845
i2s_calculate_common_clock()
clk_info
->
mclk_div
=
clk_info
->
sclk
/
clk_info
->
mclk
;
i2s_legacy.c:847
i2s_calculate_common_clock()
ESP_RETURN_ON_FALSE
(
clk_info
->
mclk
<=
clk_info
->
sclk
,
ESP_ERR_INVALID_ARG
,
TAG
,
"sample rate is too large"
)
;
i2s_legacy.c:850
i2s_calculate_common_clock()
clk_info
->
sclk
,
clk_info
->
mclk
,
clk_info
->
mclk_div
,
clk_info
->
bclk
,
clk_info
->
bclk_div
)
;
i2s_legacy.c:885
i2s_calculate_clock()
clk_info
->
sclk
=
i2s_get_source_clk_freq
(
clk_cfg
->
clk_src
,
clk_info
->
mclk
)
;
i2s_pdm.c:44
i2s_pdm_tx_calculate_clock()
clk_info
->
mclk_div
=
clk_info
->
sclk
/
clk_info
->
mclk
;
i2s_pdm.c:45
i2s_pdm_tx_calculate_clock()
ESP_RETURN_ON_FALSE
(
clk_info
->
sclk
/
(
float
)
clk_info
->
mclk
>
1.99
,
ESP_ERR_INVALID_ARG
,
TAG
,
"sample rate is too large"
)
;
i2s_pdm.c:48
i2s_pdm_tx_calculate_clock()
clk_info
.
sclk
,
clk_info
.
mclk_div
,
clk_info
.
mclk
,
clk_info
.
bclk_div
,
clk_info
.
bclk
)
;
i2s_pdm.c:69
i2s_pdm_tx_set_clock()
clk_info
->
sclk
=
i2s_get_source_clk_freq
(
clk_cfg
->
clk_src
,
clk_info
->
mclk
)
;
i2s_pdm.c:340
i2s_pdm_rx_calculate_clock()
clk_info
->
mclk_div
=
clk_info
->
sclk
/
clk_info
->
mclk
;
i2s_pdm.c:341
i2s_pdm_rx_calculate_clock()
ESP_RETURN_ON_FALSE
(
clk_info
->
sclk
/
(
float
)
clk_info
->
mclk
>
1.99
,
ESP_ERR_INVALID_ARG
,
TAG
,
"sample rate is too large"
)
;
i2s_pdm.c:344
i2s_pdm_rx_calculate_clock()
clk_info
.
sclk
,
clk_info
.
mclk_div
,
clk_info
.
mclk
,
clk_info
.
bclk_div
,
clk_info
.
bclk
)
;
i2s_pdm.c:362
i2s_pdm_rx_set_clock()
clk_info
->
sclk
=
i2s_get_source_clk_freq
(
clk_cfg
->
clk_src
,
clk_info
->
mclk
)
;
i2s_std.c:56
i2s_std_calculate_clock()
clk_info
->
mclk_div
=
clk_info
->
sclk
/
clk_info
->
mclk
;
i2s_std.c:59
i2s_std_calculate_clock()
ESP_RETURN_ON_FALSE
(
clk_info
->
sclk
/
(
float
)
clk_info
->
mclk
>
min_mclk_div
,
ESP_ERR_INVALID_ARG
,
TAG
,
"sample rate or mclk_multiple is too large for the current clock source"
)
;
i2s_std.c:62
i2s_std_calculate_clock()
clk_info
.
sclk
,
clk_info
.
mclk_div
,
clk_info
.
mclk
,
clk_info
.
bclk_div
,
clk_info
.
bclk
)
;
i2s_std.c:81
i2s_std_set_clock()
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from
examples
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Data Use
from
examples
i2s_hal_clock_info_t::sclk
is written by 7 functions and is read by 13 functions:
i2s_calculate_adc_dac_clock()
i2s_calculate_pdm_tx_clock()
i2s_calculate_pdm_rx_clock()
i2s_calculate_common_clock()
i2s_std_calculate_clock()
i2s_pdm_tx_calculate_clock()
i2s_pdm_rx_calculate_clock()
All items filtered out
i2s_hal_clock_info_t::sclk
i2s_calculate_adc_dac_clock()
i2s_calculate_pdm_tx_clock()
i2s_calculate_pdm_rx_clock()
i2s_calculate_common_clock()
i2s_calculate_clock()
i2s_std_calculate_clock()
i2s_std_set_clock()
i2s_pdm_tx_calculate_clock()
i2s_pdm_tx_set_clock()
i2s_pdm_rx_calculate_clock()
i2s_pdm_rx_set_clock()
i2s_hal_set_tx_clock()
_i2s_hal_set_rx_clock()
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