ESP_ERROR_CHECK(i2s_new_channel(&chcfg, &iis_tx_ch, NULL));//2、配置通道i2s_std_config_t stdcfg ={//时钟源,调用默认宏设置就行了.clk_cfg =I2S_STD_CLK_DEFAULT_CONFIG(SAMPLE_RATE),//slot其实就是声道数.slot_cfg =I2S_STD_PCM_SLOT_DEFAULT_CONFIG(I2S_DATA_BIT_WIDTH_16BIT, I2S_SLOT...
< I2S sample rate */ .clk_src = I2S_CLK_SRC_DEFAULT, /*!< Choose clock source */ .mclk_multiple = I2S_MCLK_MULTIPLE_384, //**Ignored in slave mode }, // .slot_cfg = I2S_STD_PHILIPS_SLOT_DEFAULT_CONFIG(I2S_DATA_BIT_WIDTH_16BIT, I2S_SLOT_MODE_STEREO), .slot_cfg = { ....
ESP_NETIF_DEFAULT_WIFI_STA,用默认的值配置后,用 esp_netif_new 函数创建 esp_netif_t;然后调用 esp_netif_attach_wifi_station 或 esp_netif_attach_wifi_ap 函数,把驱动关联到接口。
//.ext_clk_freq_hz = 36864000, // 36864000, .sample_rate_hz = 48000, // 采样率根据需求调整 .mclk_multiple = I2S_MCLK_MULTIPLE_512, // 如果使用MCLK, 否则可以忽略 //.bclk_div = 8, }, .slot_cfg = I2S_TDM_MSB_SLOT_DEFAULT_CONFIG(I2S_DATA_BIT_WIDTH_32BIT, I2S_SLOT_MODE_STEREO...
fs=48kHz 3.0 mA DVDD+AVDD current consumption in sleep IDVDD+AVDD_SL MCLK=256*fs mode EEP SLEEP = H, fs=32kHz 3.5 mA MCLK=256*fs DVDD+AVDD current consumption in SD mode IDVDD+AVDD_SD \SD = L, No clock 120 uA IPVDD Quiescent current in PVDD IPVDD PVDD=5V 3 mA PVDD current...
.mclk_inv = false, .bclk_inv = false, .ws_inv = true // 默认右通道 } } }; i2s_std_config_t spkr_config = { .clk_cfg ={ .sample_rate_hz = static_cast<uint32_t>(11025), .clk_src = I2S_CLK_SRC_DEFAULT, .ext_clk_freq_hz = 0, .mclk_multiple = I2S_MCLK_MULTIPLE_256,...
I2S音频芯片-CS4270.pdf,CS4270 24-Bit, 192-kHz Stereo Audio CODEC D/A Features A/D Features High Performance High Performance – 105 dB Dynamic Range – 105 dB Dynamic Range – -95 dB THD+N – -87 dB THD+N Selectable Serial Audio Interface
Because the MCLK of the codec has a frequency of 25 MHz, the SoundSetFormat( ) function hard codes the necessary PLL, Fsref, and NDAC values needed to change the codec sampling frequency so that the audio is sampled from the Tiva SPI FIFO at the required rate. When not using the TLV...
I2S_MCLK and I2S_LRCLK Supported Sample Rates I2S_MCLK Frequency 12.0 MHz Nominal Sample Rate 48 kHz 44.1 kHz I2S_MCLK/I2S_LRCLK Ratio 250 272 I2S_LRCLK Frequency 48000 Hz 44,117.6 Hz 3.1.3 Audio Sample Resolutions The CP2615 can be configured to support any one of the following stereo ...
dma_buf_count = 2, .dma_buf_len = 32, // updated dynamically .use_apll = 0, .tx_desc_auto_clear = false, .fixed_mclk = 0, .mclk_multiple = I2S_MCLK_MULTIPLE_DEFAULT, // Another parameter added to suppress compiler messages :roll: .bits_per_chan = I2S_BITS_PER_CHAN_DEFAULT }...