1、编写 init_i2s 函数,初始化 i2s 接口。 //I2S通道句柄statici2s_chan_handle_t iis_tx_ch;staticvoidinit_i2s() {//1、创建通道i2s_chan_config_t chcfg =I2S_CHANNEL_DEFAULT_CONFIG(I2S_NUM_0, I2S_ROLE_MASTER); ESP_ERROR_CHECK(i2s_new_channel(&chcfg, &iis_tx_ch, NULL));//2、配置通...
i2s_config_t i2s_config = { .mode = I2S_MODE_MASTER | I2S_MODE_TX, // 使用主模式并设置为发送数据 .sample_rate = 44100, // 设置采样率为44100Hz .bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT, // 设置每个采样点的位数为16位 .channel_format = I2S_CHANNEL_FMT_ONLY_LEFT, // 只使用...
i2s_config_t i2s_cfg = { .mode = I2S_MODE_MASTER | I2S_MODE_TX | I2S_MODE_RX, //设置i2s工作模式,根据需求设置 .sample_rate = EXAMPLE_SAMPLE_RATE,//设置I2S 采样率,根据音频确定采样率 .bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT,//设置采样位数 .channel_format = I2S_CHANNEL_FMT_RI...
dac_continuous_write(tx_chan, data, item_size, &bytes_written, -1); // #else // i2s_channel_write(tx_chan, data, item_size, &bytes_written, portMAX_DELAY); // #endif vRingbufferReturnItem(s_ringbuf_i2s, (void *)data); } } } } [/Codebox] Here is output: [Codebox] W (...
I (43907) U_I2S: u_i2s_init return 0 Codec 在左右channel上报固定数据 0x11,0x22, 0x33,0x44 和 0xaa 0xbb 0xcc 0xdd。app调用i2s_read读取数据,但是只有部分数据是正确的,绝大多少都是错误数据。 err = i2s_read(CONFIG_I2S_PORT, pbuf, in_len, &out_len, portMAX_DELAY); ...
使用machine.I2S 类模块:from machine import I2S, Pin i2s = I2S(0, sck=Pin(13), ws=Pin(14), sd=Pin(34), mode=I2S.TX, bits=16, format=I2S.STEREO, rate=44100, ibuf=40000) # 创建I2S对象 i2s.write(buf) # 将音频样本的缓冲区写入I2S设备 i2s = I2S(1, sck=Pin(33), ws=Pin(25),...
I2S包括两个声道(Left/Right)的数据,在主设备发出声道选择/字选择(WS)控制下进行左右声道数据切换。通过增加I2S接口的数目或其它I2S设备可以实现多声道(Multi-Channels)应用。 在I2S传输协议中,数据信号、时钟信号以及控制信号是分开传输的。I2S协议只定义三根信号线:时钟信号SCK、数据信号SD和左右声道选择信号WS。
I’m making an asynchronous I2S system where the esp32 and read from a microphone and write to a speaker at the same time. According to espressIf documentation, i2s_read() and i2s_write() are blocking functions, so for asynchronous I2S, we have to register some callbacks for it but I’...
E (867) I2C_If: Fail to write to dev 30 E (877) I2C_If: Fail to write to dev 30 E (877) ES8311: Open fail I (887) I2S_IF: channel mode 0 bits:16/16 channel:2 mask:1 I (887) I2S_IF: STD Mode 1 bits:16/16 channel:2 sample_rate:16000 mask:1 ...
ESP32-S2-WROOM和ESP32-S2-WROOM-I模块数据手册说明书 ESP32S2WROOM ESP32S2WROOMI Datasheet Version1.2 Espressif Systems Copyright©2020 www.espressif.com