潦草小狗驱动开发入门教程 —— 发送外部音频数据至 CI1303 例程

前期准备

1. 启英泰伦 CI1303 算法 SDK 开发入门教程
2. 安装 PlatformIO
3. 安装 IDE 开发工具(vscode 或者 CLion)
4. IDE 内安装 platformio 插件

功能实现

1. platformio.ini

; PlatformIO Project Configuration File
;
;   Build options: build flags, source filter
;   Upload options: custom upload port, speed and extra flags
;   Library options: dependencies, extra library storages
;   Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html

[env:esp32-s3-devkitc-1]
platform = espressif32
board = esp32-s3-devkitc-1
framework = arduino
; 指定为16MB的FLASH分区表
board_build.arduino.partitions = default_8MB.csv
; 指定FLASH和PSRAM的运行模式
board_build.arduino.memory_type = qio_opi
; 预定义宏，启用PSRAM

; 指定FLASH容量为16MB
board_upload.flash_size = 8MB
;board_build.extra_flags = -mno -param
lib_deps =
    bblanchon/ArduinoJson@^7.0.3
build_flags =
    -DBOARD_HAS_PSRAM
    -mfix-esp32-psram-cache-issue
    -DARDUINO_USB_MODE=1
    -DARDUINO_USB_CDC_ON_BOOT=1

2. main.c

#include <Arduino.h>
#include <WiFi.h>
#include <HTTPClient.h>

// WiFi 连接信息
const char* ssid = "ssid";
const char* password = "password";

// WiFi 连接次数
uint8_t connectCount = 10;

/************************* 串口变量声明 ****************************/
#define BUF_SIZE (1024)
#define RD_BUF_SIZE (BUF_SIZE)
#define EX_UART_NUM 1 // set uart1
#define PATTERN_CHR_NUM (3)

#define UART_PIN_TX GPIO_NUM_9 // 串口发送引脚GPIO_9
#define UART_PIN_RX GPIO_NUM_10 // 串口接收引脚GPIO_10

void test_http(const char* url);

void setup()
{
    // write your initialization code here
    Serial.begin(115200);
    Serial1.begin(460800, SERIAL_8N1, UART_PIN_RX, UART_PIN_TX);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED && connectCount > 0)
    {
        delay(500);
        Serial.print(".");
        connectCount--;
    }
}

void loop()
{
    vTaskDelay(300);
    // 豫章故郡，洪都新府。星分翼轸，地接衡庐。
    // 襟三江而带五湖，控蛮荆而引瓯越。物华天宝，龙光射牛斗之墟；
    // 人杰地灵，徐孺下陈蕃之榻。雄州雾列，俊采星驰。
    // 台隍枕夷夏之交 ，宾主尽东南之美。都督阎公之雅望，棨戟遥临；
    // 宇文新州之懿范，襜帷暂驻。十旬休假，胜友如云；
    // 千里逢迎，高朋满座。腾蛟起凤，孟学士之词宗；
    // 紫电青霜，王将军之武库。家君作宰，路出名区；童子何知，躬逢胜饯
    test_http("https://static.rymcu.com/article/1736769289579.mp3"); // 16kbps 16kHz 1bit
    vTaskDelay(60000 * 5);
}

void test_http(const char* url)
{
    // 开始下载音频文件
    HTTPClient audioHttp;
    audioHttp.begin(url);
    int audioHttpCode = audioHttp.GET();
    if (audioHttpCode > 0)
    {
        Serial.println("Audio file downloaded successfully");
        if (audioHttpCode == HTTP_CODE_OK)
        {
            // Get the size of the audio file (optional, for logging)
            int fileSize = audioHttp.getSize();
            Serial.printf("Audio file size: %d bytesn", fileSize);

            // Get the data stream
            WiFiClient* stream = audioHttp.getStreamPtr();

            // Buffer to hold the data chunks
            uint8_t buffer[RD_BUF_SIZE];

            // Read and send the audio data in chunks
            while (audioHttp.connected() && stream->available()) {
                // Read a chunk of data
                size_t len = stream->readBytes(buffer, RD_BUF_SIZE);

                // Send the chunk to the voice chip via serial
                Serial1.write(buffer, len);

                // Log the progress (optional)
                Serial.printf("Sent %d bytes to voice chipn", len);
            }
        }
        Serial.println("Audio download and transmission complete.");
    }
    else
    {
        Serial.println("Audio file download failed");
    }
    audioHttp.end();
}