Struct esp_idf_sys::i2s_pdm_tx_upsample_cfg_t

#[repr(C)]
pub struct i2s_pdm_tx_upsample_cfg_t {
    pub sample_rate: c_int,
    pub fp: c_int,
    pub fs: c_int,
}

@brief I2S PDM up-sample rate configuration @note TX PDM can only be set to the following two upsampling rate configurations: 1: fp = 960, fs = sample_rate / 100, in this case, Fpdm = 12848000 2: fp = 960, fs = 480, in this case, Fpdm = 128Fpcm = 128sample_rate If the pdm receiver do not care the pdm serial clock, it’s recommended set Fpdm = 12848000. Otherwise, the second configuration should be applied.

Fields

sample_rate: c_int

< I2S PDM sample rate

fp: c_int

< I2S PDM TX upsampling paramater. Normally it should be set to 960

fs: c_int

< I2S PDM TX upsampling paramater. 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

Trait Implementations

impl Clone for i2s_pdm_tx_upsample_cfg_t

fn clone(&self) -> i2s_pdm_tx_upsample_cfg_t

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for i2s_pdm_tx_upsample_cfg_t

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for i2s_pdm_tx_upsample_cfg_t

fn default() -> i2s_pdm_tx_upsample_cfg_t

Returns the “default value” for a type.

impl Copy for i2s_pdm_tx_upsample_cfg_t