坪山网站建设代理商,做pc端网站流程,专门做lolh的网站,游戏推广员每天做什么//代码#xff1a;循环播放4首内置的wav音乐#xff0c;I2S连接d类功放用NS4168芯片
//文件取样格式#xff1a;Wave PCM 签字的 16bit, 采样频率:16KHz ,比特率705kbps
//demo工程打包下载#xff1a;https://download.csdn.net/download/wabil/89515015
#include … //代码循环播放4首内置的wav音乐I2S连接d类功放用NS4168芯片
//文件取样格式Wave PCM 签字的 16bit, 采样频率:16KHz ,比特率705kbps
//demo工程打包下载https://download.csdn.net/download/wabil/89515015
#include stdio.h
#include string.h
#include freertos/FreeRTOS.h
#include freertos/task.h
#include driver/i2s_std.h
#include esp_system.h
#include esp_check.h
#include esp_log.h/* Example configurations */
#define EXAMPLE_SAMPLE_RATE (16000) // 16KHZ
#define EXAMPLE_MCLK_MULTIPLE (384) // If not using 24-bit data width, 256 should be enough
#define EXAMPLE_MCLK_FREQ_HZ (EXAMPLE_SAMPLE_RATE * EXAMPLE_MCLK_MULTIPLE)
#define EXAMPLE_VOICE_VOLUME CONFIG_EXAMPLE_VOICE_VOLUME/* I2S port and GPIOs */
#define I2S_NUM (0)
#define I2S_MCK_IO (GPIO_NUM_1) //[No used]
#define I2S_BCK_IO (GPIO_NUM_36) // SerialCK
#define I2S_WS_IO (GPIO_NUM_35) // LRCK
#define I2S_DO_IO (GPIO_NUM_37) // SDATA out
#define I2S_DI_IO (GPIO_NUM_19) // SDATA in for micphone [No used]static const char *TAG i2s_ns4168;
static const char err_reason[][30] {input param is invalid, operation timeout};
static i2s_chan_handle_t tx_handle NULL;
static i2s_chan_handle_t rx_handle NULL;/* Import music file as buffer */#define DECLARE_WAV_START(SND) extern const uint8_t SND##_wav_start[] asm(_binary_ #SND _wav_start)
#define DECALARE_WAV_END(SND) extern const uint8_t SND##_wav_end[] asm(_binary_ #SND _wav_end)DECLARE_WAV_START(Snd01);
DECALARE_WAV_END(Snd01);DECLARE_WAV_START(Snd02);
DECALARE_WAV_END(Snd02);DECLARE_WAV_START(Snd03);
DECALARE_WAV_END(Snd03);DECLARE_WAV_START(Snd_Hotel); // california_hotel
DECALARE_WAV_END(Snd_Hotel);const uint8_t *music_group[][2] {{Snd01_wav_start, Snd01_wav_end},{Snd02_wav_start, Snd02_wav_end},{Snd03_wav_start, Snd03_wav_end},{Snd_Hotel_wav_start, Snd_Hotel_wav_end},};esp_err_t play_snd_id(uint8_t snd_id, uint32_t timeout_ms)
{uint8_t *data_ptr_start (uint8_t *)music_group[snd_id][0];uint8_t *data_ptr_end (uint8_t *)music_group[snd_id][1];size_t data_len data_ptr_end - data_ptr_start;uint32_t bytes_write 0;// ESP_ERROR_CHECK(i2s_channel_enable(tx_handle));vTaskDelay(150 / portTICK_PERIOD_MS);uint32_t tick1 esp_log_timestamp();printf([%ld] read to play:%d ,length:%d bytes.\n, tick1, snd_id, data_len);esp_err_t ret i2s_channel_write(tx_handle, data_ptr_start, data_len, bytes_write, timeout_ms);uint32_t tick2 esp_log_timestamp();printf([%ld] end play,written:%ld,take:%ld ms\n, tick2,bytes_write, tick2 - tick1);vTaskDelay(150 / portTICK_PERIOD_MS);// ESP_ERROR_CHECK(i2s_channel_disable(tx_handle));if (ret ! ESP_OK){ESP_LOGE(TAG, [music] i2s write failed, %s, err_reason[ret ESP_ERR_TIMEOUT]);abort();}if (bytes_write 0){ESP_LOGE(TAG, [music] i2s music play failed.);abort();}return ret;
}static esp_err_t i2s_driver_init(void)
{i2s_chan_config_t chan_cfg I2S_CHANNEL_DEFAULT_CONFIG(I2S_NUM, I2S_ROLE_MASTER);chan_cfg.auto_clear true; // Auto clear the legacy data in the DMA bufferESP_ERROR_CHECK(i2s_new_channel(chan_cfg, tx_handle, rx_handle));i2s_std_config_t std_cfg {.clk_cfg I2S_STD_CLK_DEFAULT_CONFIG(EXAMPLE_SAMPLE_RATE),.slot_cfg I2S_STD_PHILIPS_SLOT_DEFAULT_CONFIG(I2S_DATA_BIT_WIDTH_16BIT, I2S_SLOT_MODE_STEREO),.gpio_cfg {.mclk I2S_MCK_IO,.bclk I2S_BCK_IO,.ws I2S_WS_IO,.dout I2S_DO_IO,.din I2S_DI_IO,.invert_flags {.mclk_inv false,.bclk_inv false,.ws_inv false,},},};std_cfg.clk_cfg.mclk_multiple EXAMPLE_MCLK_MULTIPLE;ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle, std_cfg));ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_handle, std_cfg));ESP_ERROR_CHECK(i2s_channel_enable(tx_handle));ESP_ERROR_CHECK(i2s_channel_enable(rx_handle));return ESP_OK;
}static void i2s_music_task(void *args)
{esp_err_t ret ESP_OK;size_t bytes_write 0;uint8_t *data_ptr (uint8_t *)Snd01_wav_start;bytes_write Snd01_wav_end - Snd01_wav_start;printf(the music bin data length:%d bytes.start_addr:%p\n, bytes_write, data_ptr);/* (Optional) Disable TX channel and preload the data before enabling the TX channel,* so that the valid data can be transmitted immediately */ESP_ERROR_CHECK(i2s_channel_disable(tx_handle));ESP_ERROR_CHECK(i2s_channel_preload_data(tx_handle, data_ptr, Snd01_wav_end - data_ptr, bytes_write));// data_ptr bytes_write; // Move forward the data pointerprintf(preload data length:%d.EXAMPLE_SAMPLE_RATE%d\n, bytes_write, EXAMPLE_SAMPLE_RATE);/* Enable the TX channel */ESP_ERROR_CHECK(i2s_channel_enable(tx_handle));vTaskDelay(5000 / portTICK_PERIOD_MS);uint8_t snd_id 0;while (1){play_snd_id(snd_id, portMAX_DELAY);snd_id (snd_id 1) % 4; // 共4个wav音效vTaskDelay(3000 / portTICK_PERIOD_MS);}vTaskDelete(NULL);
}void app_main(void)
{// 634240 bytes are writtenprintf(I2S_NS4168: BCK%d,WS%d,DAT_IO%d.\n, I2S_BCK_IO, I2S_WS_IO, I2S_DO_IO);/* Initialize i2s peripheral */if (i2s_driver_init() ! ESP_OK){ESP_LOGE(TAG, i2s driver init failed);abort();}else{ESP_LOGI(TAG, i2s driver init success);}xTaskCreate(i2s_music_task, i2s_music_task, 4096, NULL, 5, NULL);
}
