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SourceVuESP-IDF Framework and ExamplesESP-IDFi2s_pdm_tx_upsample_cfg_t::fs

i2s_pdm_tx_upsample_cfg_t::fs field

I2S PDM TX up-sampling parameter. When it is set to 480, the pdm clock frequency Fpdm = 128 * sample_rate, when it is set to sample_rate / 100， Fpdm will be fixed to 128*48000

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Declaration

from i2s_types_legacy.h:206

int fs;

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int fs; /*!< I2S PDM TX up-sampling parameter. When it is set to 480, the pdm clock frequency Fpdm = 128 * sample_rate, when it is set to sample_rate / 100， Fpdm will be fixed to 128*48000 */

i2s_types_legacy.h:206

p_i2s[i2s_num]->clk_cfg.up_sample_fs = upsample_cfg->fs;

i2s_legacy.c:1278

i2s_set_pdm_tx_up_sample()

i2s_ll_tx_set_pdm_fpfs(p_i2s[i2s_num]->hal.dev, upsample_cfg->fp, upsample_cfg->fs);

i2s_legacy.c:1279

i2s_set_pdm_tx_up_sample()

i2s_ll_tx_set_pdm_over_sample_ratio(p_i2s[i2s_num]->hal.dev, upsample_cfg->fp / upsample_cfg->fs);

i2s_legacy.c:1280

i2s_set_pdm_tx_up_sample()

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i2s_pdm_tx_upsample_cfg_t::fs is read by 1 function:

i2s_pdm_tx_upsample_cfg_t::fs

i2s_set_pdm_tx_up_sample()

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