uint8 config_data_table

uint8 config_data_table是一个包含8位无符号整数的数据表。通常情况下，这种数据表用于存储配置信息，例如传感器的采样频率、设备的通信协议、系统的配置参数等。

这种数据表可以用在嵌入式系统中，通过读取和更新config_data_table中的数值，可以动态地调整系统的配置，从而实现各种功能的定制化。

在编程中，uint8 config_data_table可以通过数组或者结构体的形式来定义和使用。开发人员可以通过读取和修改数组中的元素，或者结构体中的成员，来实现对系统配置信息的访问和修改。

由于uint8数据类型的范围为0-255，因此可以使用config_data_table来存储大部分的配置信息。如果有需要存储更大范围的数值，也可以选择其他数据类型来定义相应的数据表。

总之，uint8 config_data_table是一种用于存储配置信息的数据表，可以在嵌入式系统中灵活地应用，可以方便地实现系统功能的定制化和配置的动态调整。

相关问题

esp32 蓝牙启动流程_ESP32教你简单进行蓝牙串口调试

ESP32的蓝牙启动流程如下：

1. 初始化蓝牙协议栈

2. 配置蓝牙参数，如设备名称、服务UUID等

3. 注册蓝牙事件回调函数

4. 启动蓝牙广播

5. 开启蓝牙可见性

6. 等待连接

以下是一个简单的ESP32蓝牙串口调试的示例：

#include "esp_bt.h"
#include "esp_bt_main.h"
#include "esp_gap_ble_api.h"

#define GATTS_TAG "GATTS_DEMO"
#define TEST_DEVICE_NAME "ESP32_BLE_UART"
#define TEST_MANUFACTURER_DATA_LEN 17

/* The max length of characteristic value. When the gatt client write or prepare write,
*  the data length must be less than MAX_VALUE_LENGTH.
*/
#define MAX_VALUE_LENGTH 500

/* Declare global variable */
static uint8_t test_manufacturer[TEST_MANUFACTURER_DATA_LEN] = {0x4c, 0x00, 0x02, 0x15, 0xE2, 0x0A, 0x39, 0xF4, 0x73, 0xF5, 0x4B, 0xC4, 0xA1, 0x2F, 0x17, 0xD1, 0xAD};
static uint8_t test_service_uuid128[32] = {
    /* LSB <--------------------------------------------------------------------------------> MSB */
    //first uuid, 16bit, [12],[13] is the value
    0x13, 0x2B, 0x01, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB,
    //second uuid, 32bit, [12], [13], [14], [15] is the value
    0x14, 0x2B, 0x01, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB,
};

static uint8_t test_service_uuid[16] = {
    /* LSB <--------------------------------------------------------------------------------> MSB */
    //first uuid, 16bit, [12],[13] is the value
    0x01, 0x2B,
    //second uuid, 32bit, [12], [13], [14], [15] is the value
    0x01, 0x2B, 0x01, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB,
};

static uint8_t test_char_uuid[16] = {
    /* LSB <--------------------------------------------------------------------------------> MSB */
    //first uuid, 16bit, [12],[13] is the value
    0x02, 0x2B,
    //second uuid, 32bit, [12], [13], [14], [15] is the value
    0x02, 0x2B, 0x01, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB,
};

static esp_gatt_char_prop_t test_property = 0;

static uint8_t char1_str[] = {0x11,0x22,0x33};
static esp_attr_value_t gatts_demo_char1_val = {
    .attr_max_len = MAX_VALUE_LENGTH,
    .attr_len     = sizeof(char1_str),
    .attr_value   = char1_str,
};

static uint16_t gatts_demo_handle_table[3];

/* Full Database Description - Used to add attributes into the database */
static const esp_gatts_attr_db_t gatt_db[HRS_IDX_NB] =
{
    // Service Declaration
    [IDX_SVC]        =
    {
        {ESP_GATT_AUTO_RSP},
        {ESP_UUID_LEN_16, (uint8_t *)&primary_service_uuid, ESP_GATT_PERM_READ,
            sizeof(test_service_uuid), sizeof(test_service_uuid), (uint8_t *)&test_service_uuid},
        ESP_GATT_UUID_PRI_SERVICE,
        ESP_GATT_PERM_READ,
        sizeof(test_service_uuid),
        sizeof(test_service_uuid),
        (uint8_t *)&test_service_uuid,
        0
    },
    /* Characteristic Declaration */
    [IDX_CHAR_READ]  =
    {
        {ESP_GATT_AUTO_RSP},
        {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
            CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&test_property},
        ESP_GATT_UUID_CHAR_DECLARE,
        ESP_GATT_PERM_READ,
        CHAR_DECLARATION_SIZE,
        CHAR_DECLARATION_SIZE,
        (uint8_t *)&test_property,
        0
    },
    /* Characteristic Value */
    [IDX_CHAR_VAL_READ] =
    {
        {ESP_GATT_AUTO_RSP},
        {ESP_UUID_LEN_128, (uint8_t *)&test_char_uuid, ESP_GATT_PERM_READ,
            MAX_VALUE_LENGTH, sizeof(gatts_demo_char1_val), gatts_demo_char1_val.attr_value},
        ESP_UUID_LEN_128,
        ESP_GATT_PERM_READ,
        MAX_VALUE_LENGTH,
        sizeof(gatts_demo_char1_val),
        gatts_demo_char1_val.attr_value,
        0
    },
};

static esp_ble_adv_data_t adv_data = {
    .set_scan_rsp        = false,
    .include_name        = true,
    .include_txpower     = true,
    .min_interval        = 0x20,
    .max_interval        = 0x40,
    .appearance          = 0x00,
    .manufacturer_len    = TEST_MANUFACTURER_DATA_LEN,
    .p_manufacturer_data = test_manufacturer,
    .service_data_len    = 0,
    .p_service_data      = NULL,
    .service_uuid_len    = sizeof(test_service_uuid),
    .p_service_uuid      = test_service_uuid,
    .flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
};

static esp_ble_adv_params_t adv_params = {
    .adv_int_min         = 0x20,
    .adv_int_max         = 0x40,
    .adv_type            = ADV_TYPE_IND,
    .own_addr_type       = BLE_ADDR_TYPE_PUBLIC,
    .peer_addr           = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
    .peer_addr_type      = BLE_ADDR_TYPE_PUBLIC,
    .channel_map         = ADV_CHNL_ALL,
    .adv_filter_policy   = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
};

static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
    switch (event) {
    case ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT:
        esp_ble_gap_start_advertising(&adv_params);
        break;
    case ESP_GAP_BLE_ADV_START_COMPLETE_EVT:
        if (param->adv_start_cmpl.status != ESP_BT_STATUS_SUCCESS) {
            ESP_LOGE(GATTS_TAG, "advertising start failed");
        }
        break;
    default:
        break;
    }
}

static void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param)
{
    switch (event) {
    case ESP_GATTS_REG_EVT:
        esp_ble_gap_set_device_name(TEST_DEVICE_NAME);
        esp_ble_gap_config_adv_data(&adv_data);
        break;
    case ESP_GATTS_CREAT_ATTR_TAB_EVT:
        if (param->add_attr_tab.status != ESP_GATT_OK){
            ESP_LOGE(GATTS_TAG, "create attribute table failed, error code=0x%x", param->add_attr_tab.status);
        }
        else if (param->add_attr_tab.num_handle != HRS_IDX_NB) {
            ESP_LOGE(GATTS_TAG, "create attribute table abnormally, num_handle (%d) \
                    doesn't equal to HRS_IDX_NB(%d)", param->add_attr_tab.num_handle, HRS_IDX_NB);
        }
        else {
            ESP_LOGI(GATTS_TAG, "create attribute table successfully, the number handle = %d\n",param->add_attr_tab.num_handle);
            memcpy(gatts_demo_handle_table, param->add_attr_tab.handles, sizeof(gatts_demo_handle_table));
            esp_ble_gatts_start_service(gatts_demo_handle_table[IDX_SVC]);
        }
        break;
    case ESP_GATTS_CONNECT_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_CONNECT_EVT");
        break;
    case ESP_GATTS_DISCONNECT_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_DISCONNECT_EVT");
        esp_ble_gap_start_advertising(&adv_params);
        break;
    case ESP_GATTS_WRITE_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_WRITE_EVT");
        break;
    case ESP_GATTS_MTU_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_MTU_EVT, MTU %d", param->mtu.mtu);
        break;
    case ESP_GATTS_CONF_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_CONF_EVT");
        break;
    case ESP_GATTS_EXEC_WRITE_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_EXEC_WRITE_EVT");
        break;
    case ESP_GATTS_START_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_START_EVT");
        break;
    case ESP_GATTS_STOP_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_STOP_EVT");
        break;
    case ESP_GATTS_OPEN_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_OPEN_EVT");
        break;
    case ESP_GATTS_CANCEL_OPEN_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_CANCEL_OPEN_EVT");
        break;
    case ESP_GATTS_CLOSE_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_CLOSE_EVT");
        break;
    case ESP_GATTS_LISTEN_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_LISTEN_EVT");
        break;
    case ESP_GATTS_CONGEST_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_CONGEST_EVT");
        break;
    case ESP_GATTS_UNREG_EVT:
    case ESP_GATTS_DELETE_EVT:
    default:
        break;
    }
}

void app_main()
{
    esp_err_t ret;

    ESP_LOGI(GATTS_TAG, "ESP_BLUETOOTH_BLE example started.");

    esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
    ret = esp_bt_controller_init(&bt_cfg);
    if (ret) {
        ESP_LOGE(GATTS_TAG, "%s initialize controller failed\n", __func__);
        return;
    }

    ret = esp_bt_controller_enable(ESP_BT_MODE_BLE);
    if (ret) {
        ESP_LOGE(GATTS_TAG, "%s enable controller failed\n", __func__);
        return;
    }

    ret = esp_bluedroid_init();
    if (ret) {
        ESP_LOGE(GATTS_TAG, "%s init bluetooth failed\n", __func__);
        return;
    }

    ret = esp_bluedroid_enable();
    if (ret) {
        ESP_LOGE(GATTS_TAG, "%s enable bluetooth failed\n", __func__);
        return;
    }

    ret = esp_ble_gatts_register_callback(gatts_event_handler);
    if (ret){
        ESP_LOGE(GATTS_TAG, "gatts register error, error code = %x", ret);
        return;
    }

    ret = esp_ble_gap_register_callback(gap_event_handler);
    if (ret){
        ESP_LOGE(GATTS_TAG, "gap register error, error code = %x", ret);
        return;
    }

    ret = esp_ble_gatts_app_register(ESP_APP_ID);
    if (ret){
        ESP_LOGE(GATTS_TAG, "gatts app register error, error code = %x", ret);
        return;
    }

    esp_err_t local_mtu_ret = esp_ble_gatt_set_local_mtu(500);
    if (local_mtu_ret){
        ESP_LOGE(GATTS_TAG, "set local  MTU failed, error code = %x", local_mtu_ret);
    }

    ret = esp_ble_gatts_create_attr_tab(gatt_db, gatts_if, HRS_IDX_NB, ESP_APP_ID);
    if (ret){
        ESP_LOGE(GATTS_TAG, "create attr table failed, error code = %x", ret);
    }
}

在这个示例中，我们使用了ESP-IDF提供的蓝牙协议栈和GATT Server框架，实现了一个简单的GATT Server，并且开启了蓝牙广播和可见性，使得其他蓝牙设备可以扫描到并连接我们的设备。在连接建立后，我们可以向GATT Server中的特定Characteristic写入数据，也可以从特定Characteristic读取数据。

esp32 在ulp模式下定期读取sht30的温湿度参数的完整代码

以下是 ESP32 在 ULP 模式下定期读取 SHT30 温湿度参数的完整代码：

#include "esp_sleep.h"
#include "driver/rtc_io.h"
#include "soc/rtc_cntl_reg.h"
#include "soc/sens_reg.h"
#include "soc/soc_ulp.h"

RTC_DATA_ATTR static struct {
    uint16_t humi;
    uint16_t temp;
} sht30_data;

static RTC_DATA_ATTR const uint16_t sht30_cmd = 0x2400; // SHT30读取命令

static const uint16_t sht30_crc_table[] = { //CRC校验表
    0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
    0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef
};

// 计算 SHT30 数据的 CRC 校验值
static uint16_t sht30_crc(uint8_t *data, int len)
{
    uint16_t crc = 0xffff;
    for (int i = 0; i < len; i++) {
        crc = (crc << 8) ^ sht30_crc_table[(crc >> 8) ^ data[i]];
    }
    return crc;
}

// ULP 程序
static const ulp_insn_t ulp_prog[] = {
    I_MOVI(R2, sht30_cmd),
    I_WR_REG(R2, SENS_SHT3XD_ADDR, SENS_SHT3XD_CMD, 0),
    I_DELAY(1000), // 等待 1000us
    I_RD_REG(R2, SENS_SHT3XD_ADDR, SENS_SHT3XD_DATA_H, 0),
    I_WR_REG(R3, SENS_SHT3XD_ADDR, SENS_SHT3XD_CMD, 1),
    I_DELAY(1000), // 等待 1000us
    I_RD_REG(R3, SENS_SHT3XD_ADDR, SENS_SHT3XD_DATA_L, 0),
    I_HALT()
};

void setup()
{
    rtc_gpio_init(GPIO_NUM_4); // SHT30 的 SDA 引脚连接到 GPIO4
    rtc_gpio_set_direction(GPIO_NUM_4, RTC_GPIO_MODE_INPUT_OUTPUT); // 设置为输入输出模式
    rtc_gpio_set_level(GPIO_NUM_4, 1); // 默认拉高

    // 配置 ULP 程序
    ulp_process_macros_and_load(0, ulp_prog, sizeof(ulp_prog) / sizeof(ulp_insn_t));
    ulp_set_wakeup_period(0, 1000000); // 设置 ULP 睡眠时间为 1s
    ulp_run(0); // 启动 ULP 程序
}

void loop()
{
    esp_sleep_enable_ulp_wakeup(); // 允许 ULP 唤醒主CPU
    esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON); // 打开 RTC 性能域
    esp_light_sleep_start(); // 进入浅度睡眠

    if (sht30_data.humi != 0 && sht30_data.temp != 0) {
        // 发送温湿度数据到服务器等
    }
}

// 中断处理函数，当 ULP 程序执行完毕后会调用此函数
void IRAM_ATTR ulp_isr(void *arg)
{
    uint8_t data[2];
    data[0] = ulp_reg_read(SENS_SHT3XD_DATA_H_REG);
    data[1] = ulp_reg_read(SENS_SHT3XD_DATA_L_REG);

    if (sht30_crc(data, 2) == ((data[0] << 8) | data[1])) { // 验证 CRC 校验值
        sht30_data.humi = ((data[0] << 8) | data[1]) * 100 / 65535;
        data[0] = ulp_reg_read(SENS_SHT3XD_DATA_H_REG + 1);
        data[1] = ulp_reg_read(SENS_SHT3XD_DATA_L_REG + 1);
        if (sht30_crc(data, 2) == ((data[0] << 8) | data[1])) {
            sht30_data.temp = ((data[0] << 8) | data[1]) * 175 / 65535 - 45;
        }
    }

    ulp_set_wakeup_period(0, 1000000); // 设置 ULP 睡眠时间为 1s
    ulp_run(0); // 启动 ULP 程序
}

// 主函数
void app_main()
{
    setup();

    // 注册 ULP 中断处理函数
    esp_err_t ret = esp_sleep_enable_timer_wakeup(1000000); // 设置主CPU睡眠时间为 1s
    ret = esp_sleep_isr_register(&ulp_isr, NULL, ESP_SLEEP_ISR_FLAG_DEFAULT);

    while (1) {
        loop();
    }
}

需要注意的是，上述代码涉及到 SHT30 的读取、CRC 校验等细节，具体可以参考 SHT30 的数据手册。同时，为了防止 ULP 程序占用主CPU资源，需要在 ULP 程序执行完毕后立即进入浅度睡眠，并在 ULP 中断处理函数中重新启动 ULP 程序。