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Merge branch 'bugfix/i2s_pdm_dac_wrong_clock_freq' into 'master'

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i2s_pdm: fix tx frequency limitation

Closes IDFGH-9010

See merge request espressif/esp-idf!21764
This commit is contained in:
Kevin (Lao Kaiyao)
2022-12-30 10:16:03 +08:00
parent c681c92e4c 943dcd2cd1
commit 42509fa0b3
23 changed files with 120 additions and 65 deletions
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12
components/hal/esp32c6/include/hal/i2s_ll.h
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@@ -892,6 +892,17 @@ static inline void i2s_ll_tx_set_pdm_sd_dither2(i2s_dev_t *hw, uint32_t dither2)
hw->tx_pcm2pdm_conf.tx_pdm_sigmadelta_dither2 = dither2;
}
/**
* @brief Set the PDM TX over sampling ratio
*
* @param hw Peripheral I2S hardware instance address.
* @param ovr Over sampling ratio
*/
static inline void i2s_ll_tx_set_pdm_over_sample_ratio(i2s_dev_t *hw, uint32_t ovr)
{
hw->tx_pcm2pdm_conf.tx_pdm_sinc_osr2 = ovr;
}
/**
* @brief Configure I2S TX PDM sample rate
* Fpdm = 64*Fpcm*fp/fs
@@ -904,7 +915,6 @@ static inline void i2s_ll_tx_set_pdm_fpfs(i2s_dev_t *hw, uint32_t fp, uint32_t f
{
hw->tx_pcm2pdm_conf1.tx_pdm_fp = fp;
hw->tx_pcm2pdm_conf1.tx_pdm_fs = fs;
hw->tx_pcm2pdm_conf.tx_pdm_sinc_osr2 = fp / fs;
}
/**