初始提交卡包 USB 工程

纳入固件源码、屏幕组件、nand_xfer 工具和文档。忽略本机构建产物、sdkconfig，以及含本机路径的依赖锁。 Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 21:54:50 +08:00
commit 851e347cf5
260 changed files with 269349 additions and 0 deletions
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+#include "ns4168.h"
+
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "driver/gpio.h"
+#include "driver/i2s.h"
+#include "esp_log.h"
+#include "esp_random.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+static const char *TAG = "ns4168";
+
+static void ns4168_white_noise_task(void *arg)    //白噪音测试
+{
+    uint8_t buffer[256];
+    size_t bytes_written = 0;
+
+    while (1) {
+        for (int i = 0; i < (int)sizeof(buffer); i += 2) {
+            uint16_t sample = (uint16_t)(esp_random() & 0xFFFF);
+            buffer[i] = (uint8_t)(sample & 0xFF);
+            buffer[i + 1] = (uint8_t)((sample >> 8) & 0xFF);
+        }
+
+        esp_err_t ret = i2s_write(NS4168_I2S_PORT, buffer, sizeof(buffer), &bytes_written, portMAX_DELAY);
+        if (ret != ESP_OK) {
+            ESP_LOGE(TAG, "i2s_write failed: %s", esp_err_to_name(ret));
+        }
+        vTaskDelay(pdMS_TO_TICKS(10));
+    }
+}
+
+
+
+
+/**
+ * @brief 初始化 NS4168 的 CTRL 引脚并将其拉高（选择右声道，且退出关断模式）
+ */
+void ns4168_ctrl_init(void)
+{
+    // 1. 配置 GPIO 参数结构体
+    gpio_config_t io_conf = {
+        .pin_bit_mask = (1ULL << NS4168_CTRL_GPIO),   // 选中 GPIO33
+        .mode = GPIO_MODE_OUTPUT,                    // 设置为推挽输出
+        .intr_type = GPIO_INTR_DISABLE,              // 禁止中断
+        .pull_up_en = GPIO_PULLUP_DISABLE,           // 关闭内部上拉（不需要）
+        .pull_down_en = GPIO_PULLDOWN_DISABLE,       // 关闭内部下拉
+    };
+
+    // 2. 应用配置
+    esp_err_t ret = gpio_config(&io_conf);
+    if (ret != ESP_OK) {
+        ESP_LOGE("NS4168", "GPIO33 配置失败！");
+        return;
+    }
+
+    // 3. 输出高电平（3.3V）
+    gpio_set_level(NS4168_CTRL_GPIO, 1);
+    
+    ESP_LOGI("NS4168", "NS4168 CTRL 引脚已拉高 (GPIO33)，选择右声道");
+}
+
+
+esp_err_t ns4168_i2s_init(void)
+{
+    ns4168_ctrl_init();
+    esp_err_t ret = ESP_OK;
+
+    i2s_config_t i2s_cfg = {
+        .mode = I2S_MODE_MASTER | I2S_MODE_TX,
+        .sample_rate = NS4168_I2S_SAMPLE_RATE,
+        .bits_per_sample = 16,
+        .channel_format = NS4168_I2S_CHANNELS,
+        .communication_format = I2S_COMM_FORMAT_STAND_I2S,
+        .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1,
+        .dma_buf_count = 16,
+        .dma_buf_len = 1024,
+        .tx_desc_auto_clear = true,
+        .use_apll = false,
+        .fixed_mclk = 0,
+    };
+
+    i2s_pin_config_t pin_cfg = {
+        .mck_io_num = -1,
+        .bck_io_num = NS4168_I2S_BCK_PIN,
+        .ws_io_num = NS4168_I2S_WS_PIN,
+        .data_out_num = NS4168_I2S_DOUT_PIN,
+        .data_in_num = I2S_PIN_NO_CHANGE,
+    };
+
+    ret = i2s_driver_install(NS4168_I2S_PORT, &i2s_cfg, 0, NULL);
+    if (ret != ESP_OK) {
+        ESP_LOGE(TAG, "i2s_driver_install failed: %s", esp_err_to_name(ret));
+        return ret;
+    }
+
+    ret = i2s_set_pin(NS4168_I2S_PORT, &pin_cfg);
+    if (ret != ESP_OK) {
+        ESP_LOGE(TAG, "i2s_set_pin failed: %s", esp_err_to_name(ret));
+        return ret;
+    }
+
+    ret = i2s_zero_dma_buffer(NS4168_I2S_PORT);
+    if (ret != ESP_OK) {
+        ESP_LOGE(TAG, "i2s_zero_dma_buffer failed: %s", esp_err_to_name(ret));
+        return ret;
+    }
+
+    ESP_LOGI(TAG, "NS4168 I2S init OK");
+    return ESP_OK;
+}
+
+esp_err_t ns4168_start_white_noise_test(void)
+{
+    esp_err_t ret = ns4168_i2s_init();
+    if (ret != ESP_OK) {
+        return ret;
+    }
+
+    BaseType_t task_ret = xTaskCreatePinnedToCore(ns4168_white_noise_task, "ns4168_noise", 4096, NULL, 5, NULL, 1);
+    if (task_ret != pdPASS) {
+        ESP_LOGE(TAG, "create white noise task failed");
+        return ESP_FAIL;
+    }
+
+    return ESP_OK;
+}
+
+
+