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fix(i2s): fix i2s half sample rate issue

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laokaiyao
2024-10-24 14:32:06 +08:00
committed by Kevin (Lao Kaiyao)
parent 6ae7f18158
commit e1e9ffdd4f
7 changed files with 249 additions and 209 deletions
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components/hal/esp32s2/include/hal/i2s_ll.h
+4 -9
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2020-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -72,7 +72,7 @@ static inline void i2s_ll_dma_enable_auto_write_back(i2s_dev_t *hw, bool en)
}
/**
* @brief I2S DMA generate EOF event on data in FIFO poped out
* @brief I2S DMA generate EOF event on data in FIFO popped out
*
* @param hw Peripheral I2S hardware instance address.
* @param en True to enable, False to disable
@@ -341,11 +341,6 @@ static inline void i2s_ll_set_raw_mclk_div(i2s_dev_t *hw, uint32_t mclk_div, uin
*/
static inline void i2s_ll_tx_set_mclk(i2s_dev_t *hw, const hal_utils_clk_div_t *mclk_div)
{
/* Workaround for inaccurate clock while switching from a relatively low sample rate to a high sample rate
* Set to particular coefficients first then update to the target coefficients,
* otherwise the clock division might be inaccurate.
* the general idea is to set a value that unlike to calculate from the regular decimal */
i2s_ll_set_raw_mclk_div(hw, 7, 47, 3);
i2s_ll_set_raw_mclk_div(hw, mclk_div->integer, mclk_div->denominator, mclk_div->numerator);
}
@@ -682,7 +677,7 @@ static inline void i2s_ll_rx_set_eof_num(i2s_dev_t *hw, uint32_t eof_num)
}
/**
* @brief Congfigure TX chan bit and audio data bit, on ESP32-S2, sample_bit should equals to data_bit
* @brief Configure TX chan bit and audio data bit, on ESP32-S2, sample_bit should equals to data_bit
*
* @param hw Peripheral I2S hardware instance address.
* @param chan_bit The chan bit width
@@ -695,7 +690,7 @@ static inline void i2s_ll_tx_set_sample_bit(i2s_dev_t *hw, uint8_t chan_bit, int
}
/**
* @brief Congfigure RX chan bit and audio data bit, on ESP32-S2, sample_bit should equals to data_bit
* @brief Configure RX chan bit and audio data bit, on ESP32-S2, sample_bit should equals to data_bit
*
* @param hw Peripheral I2S hardware instance address.
* @param chan_bit The chan bit width