lora_bl/Core/Src/main.c

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <time.h>
#include <stdlib.h>
#include "ring_buffer.h"

#include "string.h"
#include "E52.h"
#include "E104-BT5005A.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
RTC_HandleTypeDef hrtc;

UART_HandleTypeDef huart1;
UART_HandleTypeDef huart2;
UART_HandleTypeDef huart3;
DMA_HandleTypeDef hdma_usart2_rx;
DMA_HandleTypeDef hdma_usart3_rx;

/* USER CODE BEGIN PV */
uint8_t rx_buf_uart3[25] = {0};
uint8_t rx_buf_uart2[25] = {0};
uint8_t rx_buf_uart2_DMA[25] = {0};

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);

static void MX_GPIO_Init(void);

static void MX_DMA_Init(void);

static void MX_USART1_UART_Init(void);

static void MX_USART2_UART_Init(void);

static void MX_USART3_UART_Init(void);

static void MX_RTC_Init(void);

/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#include <stdio.h>

int __io_putchar(int ch) {
    uint8_t c = ch;
    HAL_UART_Transmit(&huart1, &c, 1, HAL_MAX_DELAY);
    return ch;
}

void Device_Info_Init_Fun() {
    //初始化环形缓冲区
    RingBuffer_Init(&deviceInfo.queueBLData);
    RingBuffer_Init(&deviceInfo.queueLoraCommandData);

    deviceInfo.isOnline = FALSE;
    deviceInfo.broadcast_type = BROADCAST_ALL;
    deviceInfo.loraDeviceAddress_H = 0xFE; //默认地址高位
    deviceInfo.loraDeviceAddress_L = 0xEF; //默认地址低位
    deviceInfo.powerValue = 0;
    deviceInfo.target_addr_H = 0xFF;
    deviceInfo.target_addr_L = 0xFF;
    deviceInfo.BlDataFlag = BL_IDLE;
    deviceInfo.BlDataFlag = BL_START;
    deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT); //初始化
}

//开启供电
void powerOn() {
    HAL_GPIO_WritePin(POWER_ON_GPIO_Port, POWER_ON_Pin, GPIO_PIN_SET);
    HAL_GPIO_WritePin(PowerLED_GPIO_Port, PowerLED_Pin, GPIO_PIN_SET);
}

//设备关闭供电
void powerOff() {
    HAL_GPIO_WritePin(POWER_ON_GPIO_Port, POWER_ON_Pin, GPIO_PIN_RESET);
}

void Flash_Write_LoraAddr(uint8_t addrH, uint8_t addrL) {
    HAL_FLASH_Unlock();

    // 擦除 1 页（1024字节）
    FLASH_EraseInitTypeDef eraseInit;
    uint32_t PageError = 0;
    eraseInit.TypeErase = FLASH_TYPEERASE_PAGES;
    eraseInit.PageAddress = FLASH_USER_ADDR;
    eraseInit.NbPages = 1;
    HAL_FLASHEx_Erase(&eraseInit, &PageError);

    // 组合两个字节为一个半字（高字节 | 低字节）
    uint16_t halfword = ((uint16_t) addrH << 8) | addrL;

    // 写入
    HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, FLASH_USER_ADDR, halfword);

    HAL_FLASH_Lock();
}

void Flash_Read_LoraAddr(uint8_t *addrH, uint8_t *addrL) {
    uint16_t halfword = *(uint16_t *) FLASH_USER_ADDR;
    *addrH = (halfword >> 8) & 0x7F;
    *addrL = halfword & 0xFF;
}

// 工具函数：计算时间差（秒）
int GetElapsedSeconds(RTC_TimeTypeDef *start, RTC_TimeTypeDef *end) {
    int s1 = start->Hours * 3600 + start->Minutes * 60 + start->Seconds;
    int s2 = end->Hours * 3600 + end->Minutes * 60 + end->Seconds;
    int diff = s2 - s1;
    if (diff < 0) diff += 24 * 3600; // 跨天修正
    return diff;
}

// 工具函数：判断是否超过指定秒数
int IsTimeElapsed(RTC_HandleTypeDef *hrtc, RTC_TimeTypeDef *last, uint32_t interval) {
    RTC_TimeTypeDef now = {0};
    HAL_RTC_GetTime(hrtc, &now, RTC_FORMAT_BIN);

    int diff = GetElapsedSeconds(last, &now);
    if (diff >= interval) {
        *last = now; // 更新上次时间
        return 1; // 超时
    }
    return 0; // 未超时
}


/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void) {
    /* USER CODE BEGIN 1 */

    /* USER CODE END 1 */

    /* MCU Configuration--------------------------------------------------------*/

    /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
    HAL_Init();

    /* USER CODE BEGIN Init */

    /* USER CODE END Init */

    /* Configure the system clock */
    SystemClock_Config();

    /* USER CODE BEGIN SysInit */

    /* USER CODE END SysInit */

    /* Initialize all configured peripherals */
    MX_GPIO_Init();
    MX_DMA_Init();
    MX_USART1_UART_Init();
    MX_USART2_UART_Init();
    MX_USART3_UART_Init();
    MX_RTC_Init();
    /* USER CODE BEGIN 2 */

    //开启电源显示
    powerOn();
    E52_CtlPowerOn_Fun();
    Device_Info_Init_Fun();
    Flash_Read_LoraAddr(&deviceInfo.loraDeviceAddress_H, &deviceInfo.loraDeviceAddress_L);
    HAL_Delay(4000);
    // 启动 USART2 DMA 接收
    HAL_UART_Receive_DMA(&huart3, rx_buf_uart3, sizeof(rx_buf_uart3));
    __HAL_UART_ENABLE_IT(&huart3, UART_IT_IDLE);
    HAL_UART_Receive_DMA(&huart2, rx_buf_uart2_DMA, sizeof(rx_buf_uart2_DMA));
    __HAL_UART_ENABLE_IT(&huart2, UART_IT_IDLE);

    // 判断是否第一次启动（没有配置地址）
    if (deviceInfo.loraDeviceAddress_H == 0xFF || deviceInfo.loraDeviceAddress_L == 0xFF ||
        deviceInfo.loraDeviceAddress_H == 0x00 || deviceInfo.loraDeviceAddress_L == 0x00) {
        printf("检测到 LoRa 地址未配置，进入初始化流程...\r\n");

        // 蓝牙初始化
        E104_BT5005A_ROLE_Fun();
        HAL_Delay(500);
        E104_BT5005A_SCANINTV_Fun();
        HAL_Delay(500);
        E104_BT5005A_SCANWND_Fun();
        HAL_Delay(500);
        E104_BT5005A_RESET_Fun();
        HAL_Delay(500);

        // LoRa 初始化
        E52_CONFIG_BROADCAST_TYPE_FUN(BROADCAST_ALL);
        HAL_Delay(500);

        const char *lora_msg1 = "AT+TYPE=0";
        HAL_UART_Transmit(&huart2, (uint8_t *) lora_msg1, strlen(lora_msg1), HAL_MAX_DELAY);
        HAL_Delay(500);

        const char *lora_msg3 = "AT+HEAD=0";
        HAL_UART_Transmit(&huart2, (uint8_t *) lora_msg3, strlen(lora_msg3), HAL_MAX_DELAY);
        HAL_Delay(500);

        const char *lora_msg4 = "AT+SRC_ADDR=?";
        HAL_UART_Transmit(&huart2, (uint8_t *) lora_msg4, strlen(lora_msg4), HAL_MAX_DELAY);
        HAL_Delay(500);

        // 加超时机制，最多等 20s
        uint32_t startTick = HAL_GetTick();
        while (1) {
            if (deviceInfo.loraDeviceAddress_H != 0xFF && deviceInfo.loraDeviceAddress_L != 0xFF &&
                deviceInfo.loraDeviceAddress_H != 0x00 && deviceInfo.loraDeviceAddress_L != 0x00) {
                printf("LoRa 地址配置完成: 0x%02X%02X\r\n",
                       deviceInfo.loraDeviceAddress_H, deviceInfo.loraDeviceAddress_L);
                break;
            }

            // 重发 AT+SRC_ADDR=? 请求
            HAL_UART_Transmit(&huart2, (uint8_t *) lora_msg4, strlen(lora_msg4), HAL_MAX_DELAY);
            HAL_Delay(2000);

            if (HAL_GetTick() - startTick > 20000) {
                // 超时 20s
                printf("获取 LoRa 地址超时，进入默认模式！\r\n");
                deviceInfo.loraDeviceAddress_H = 0xFF; // 默认高位
                deviceInfo.loraDeviceAddress_L = 0xFF; // 默认低位

                //闪烁100
                for (int i = 0; i < 30; i++) {
                    HAL_GPIO_TogglePin(PowerLED_GPIO_Port, PowerLED_Pin);
                    HAL_Delay(300);
                }

                E104_BT5005A_SLEEP_Fun();
                HAL_Delay(2000);
                Set_Alarm_After(20 * 60);
                break;
            }
        }
    } else {
        printf("LoRa 地址已存在: 0x%02X%02X\r\n",
               deviceInfo.loraDeviceAddress_H, deviceInfo.loraDeviceAddress_L);
        E52_Heartbeat_Fun();
    }
    // srand(HAL_GetTick()); // 设置随机数种子
    /* USER CODE END 2 */

    /* Infinite loop */
    /* USER CODE BEGIN WHILE */

    // printf("设备地址：0x%02X%02X\n", deviceInfo.loraDeviceAddress_H, deviceInfo.loraDeviceAddress_L);


    while (1) {
        /* USER CODE END WHILE */

        /* USER CODE BEGIN 3 */

        // 检查是否接收到"心跳"命令，且设备在线
        printf("设备状态：0x%02X\n", deviceInfo.commandFromCloud);
        printf("Device is ready: %d\r\n", deviceInfo.isOnline);
        // schedule_Fun();
        // 心跳：不在线时，每 10 秒发一次
        if (!deviceInfo.isOnline) {
            if (IsTimeElapsed(&hrtc, &Online_struct, 10)) {
                printf("心跳发送1\r\n");
                E52_Heartbeat_Fun();
            }
        }

        // IDLE 检测
        if (GET_CMD(deviceInfo.commandFromCloud) == IDLE || GET_STEP(deviceInfo.commandFromCloud) == STEP_INIT) {
            HAL_RTC_GetTime(&hrtc, &IDLE_struct, RTC_FORMAT_BIN); // 直接更新
        } else {
            if (IsTimeElapsed(&hrtc, &IDLE_struct, 20 * 60)) {
                deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
                // E52_AT_TYPE_Fun(E52_TYPE_REPEATER);
            }
        }


        // 解析后台命令
        if (GET_CMD(deviceInfo.commandFromCloud) == IDLE && GET_STEP(deviceInfo.commandFromCloud) == STEP_VERIFY) {
            E52_Analyze_Data();
        }

        // 03:请求蓝牙数据
        if (GET_CMD(deviceInfo.commandFromCloud) == REQUEST_BLUETOOTH_DATA && deviceInfo.isOnline) {
            switch (GET_STEP(deviceInfo.commandFromCloud)) {
                case REQUEST_BLUETOOTH_DATA_SCAN:
                    deviceInfo.BlDataFlag = BL_STOP;
                    deviceInfo.commandFromCloud = COMBINE_CMD_STEP(REQUEST_BLUETOOTH_DATA, REQUEST_BLUETOOTH_DATA_SEND);
                    break;

                case REQUEST_BLUETOOTH_DATA_SEND:
                    uint8_t sentData_Temp[25] = {0};
                    if (RingBuffer_Dequeue(&deviceInfo.queueBLData, sentData_Temp) == 0 && deviceInfo.
                        forwardBLAndLoraDataCount <
                        deviceInfo.forwardBLAndLoraDataCountMax) {
                        //不为空的情况下
                        E52_Send_Bl_Data_Fun(sentData_Temp, 0x00);
                        deviceInfo.forwardBLAndLoraDataCount++;
                    } else {
                        //擦除缓存
                        if (RingBuffer_Dequeue(&deviceInfo.queueBLData, sentData_Temp) == 0) {
                            continue;
                        }
                        // printf("发送最后一位，开始发送蓝牙数据给Lora\r\n");
                        uint8_t endFrame[25] = {0};
                        E52_Send_Bl_Data_Fun(endFrame, 0x01);
                        deviceInfo.BlDataFlag = BL_START;
                        deviceInfo.commandFromCloud = COMBINE_CMD_STEP(REQUEST_BLUETOOTH_DATA, STEP_COMPLETE);
                        printf("发送完成\r\n");
                    }
                    HAL_Delay(deviceInfo.forwardBLAndLoraDataDuration); //后台配置间隔时间
                    break; //发送数据阶段
                case STEP_COMPLETE:
                    deviceInfo.forwardBLAndLoraDataDuration = 0;
                    // i = 0;
                    deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
                    break;

                default:
                    // 处理未知步骤
                    deviceInfo.forwardBLAndLoraDataDuration = 0;
                    // i = 0;
                    deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
                    break;
            }
        }

        // 08:请求心跳数据
        if (GET_CMD(deviceInfo.commandFromCloud) == E52_HEARTBEAT && deviceInfo.isOnline) {
            switch (GET_STEP(deviceInfo.commandFromCloud)) {
                case HEARTBEAT_SEND:
                    printf("心跳发送2\r\n");
                    E52_Heartbeat_Fun();
                    deviceInfo.commandFromCloud = COMBINE_CMD_STEP(REQUEST_BLUETOOTH_DATA, STEP_COMPLETE);
                    break;
                case STEP_COMPLETE:
                    deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
                    break;

                default:
                    deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
                    printf("收到未知步骤，忽略处理\r\n");
                    break;
            }
        }

        // 07:配置E52
        if (GET_CMD(deviceInfo.commandFromCloud) == CONFIGURE_E52 && deviceInfo.isOnline) {
            switch (GET_STEP(deviceInfo.commandFromCloud)) {
                case CONFIGURE_E52_SET_BROADCAST_TYPE: //第一步，配置广播类型
                    E52_CONFIG_BROADCAST_TYPE_FUN(deviceInfo.broadcast_type);
                    HAL_Delay(2000);
                    if (deviceInfo.broadcast_type == BROADCAST_ALL) {
                        deviceInfo.commandFromCloud = COMBINE_CMD_STEP(CONFIGURE_E52, STEP_COMPLETE);
                        //TODO 广播，直接结束.或者进入测试流程。
                    } else {
                        deviceInfo.commandFromCloud = COMBINE_CMD_STEP(CONFIGURE_E52, CONFIGURE_E52_SET_LORA_ADDRESS);
                        //第三步，配置Lora地址
                    }
                    break;

                case CONFIGURE_E52_SET_LORA_ADDRESS:
                    E104_BT5005A_DST_ADDR_Fun();
                    HAL_Delay(2000);
                    deviceInfo.commandFromCloud = COMBINE_CMD_STEP(CONFIGURE_E52, STEP_COMPLETE);
                    //TODO 广播，直接结束.或者进入测试流程。
                    break; //如果是单波，多播，配置目标地址

                case STEP_COMPLETE:
                    printf("心跳发送3\r\n");
                    E52_Heartbeat_Fun();
                    deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);
                    break;

                default:
                    printf("未知配置命令\r\n");
                    deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_INIT);;
                    break;
            }
        }

        if (GET_CMD(deviceInfo.commandFromCloud) == E52_ENTER_SLEEP && deviceInfo.isOnline) {
            Enter_Sleep_ACK_Fun();
            HAL_Delay(2000);
            E104_BT5005A_SLEEP_Fun();
            HAL_Delay(2000);
            Set_Alarm_After(deviceInfo.rtc_wake_up_time);
        }
    }
    /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void) {
    RCC_OscInitTypeDef RCC_OscInitStruct = {0};
    RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
    RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};

    /** Initializes the RCC Oscillators according to the specified parameters
    * in the RCC_OscInitTypeDef structure.
    */
    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_LSE;
    RCC_OscInitStruct.HSEState = RCC_HSE_ON;
    RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
    RCC_OscInitStruct.LSEState = RCC_LSE_ON;
    RCC_OscInitStruct.HSIState = RCC_HSI_ON;
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
    RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
    if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
        Error_Handler();
    }

    /** Initializes the CPU, AHB and APB buses clocks
    */
    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
                                  | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) {
        Error_Handler();
    }
    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC;
    PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
        Error_Handler();
    }
}

/**
  * @brief RTC Initialization Function
  * @param None
  * @retval None
  */
static void MX_RTC_Init(void) {
    /* USER CODE BEGIN RTC_Init 0 */

    /* USER CODE END RTC_Init 0 */

    RTC_TimeTypeDef sTime = {0};
    RTC_DateTypeDef DateToUpdate = {0};

    /* USER CODE BEGIN RTC_Init 1 */

    /* USER CODE END RTC_Init 1 */

    /** Initialize RTC Only
    */
    hrtc.Instance = RTC;
    hrtc.Init.AsynchPrediv = RTC_AUTO_1_SECOND;
    hrtc.Init.OutPut = RTC_OUTPUTSOURCE_ALARM;
    if (HAL_RTC_Init(&hrtc) != HAL_OK) {
        Error_Handler();
    }

    /* USER CODE BEGIN Check_RTC_BKUP */

    /* USER CODE END Check_RTC_BKUP */

    /** Initialize RTC and set the Time and Date
    */
    sTime.Hours = 0;
    sTime.Minutes = 0;
    sTime.Seconds = 0;

    if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BIN) != HAL_OK) {
        Error_Handler();
    }
    DateToUpdate.WeekDay = RTC_WEEKDAY_MONDAY;
    DateToUpdate.Month = RTC_MONTH_JANUARY;
    DateToUpdate.Date = 1;
    DateToUpdate.Year = 0;

    if (HAL_RTC_SetDate(&hrtc, &DateToUpdate, RTC_FORMAT_BIN) != HAL_OK) {
        Error_Handler();
    }
    /* USER CODE BEGIN RTC_Init 2 */

    /* USER CODE END RTC_Init 2 */
}

/**
  * @brief USART1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_USART1_UART_Init(void) {
    /* USER CODE BEGIN USART1_Init 0 */

    /* USER CODE END USART1_Init 0 */

    /* USER CODE BEGIN USART1_Init 1 */

    /* USER CODE END USART1_Init 1 */
    huart1.Instance = USART1;
    huart1.Init.BaudRate = 115200;
    huart1.Init.WordLength = UART_WORDLENGTH_8B;
    huart1.Init.StopBits = UART_STOPBITS_1;
    huart1.Init.Parity = UART_PARITY_NONE;
    huart1.Init.Mode = UART_MODE_TX_RX;
    huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    huart1.Init.OverSampling = UART_OVERSAMPLING_16;
    if (HAL_UART_Init(&huart1) != HAL_OK) {
        Error_Handler();
    }
    /* USER CODE BEGIN USART1_Init 2 */

    /* USER CODE END USART1_Init 2 */
}

/**
  * @brief USART2 Initialization Function
  * @param None
  * @retval None
  */
static void MX_USART2_UART_Init(void) {
    /* USER CODE BEGIN USART2_Init 0 */

    /* USER CODE END USART2_Init 0 */

    /* USER CODE BEGIN USART2_Init 1 */

    /* USER CODE END USART2_Init 1 */
    huart2.Instance = USART2;
    huart2.Init.BaudRate = 115200;
    huart2.Init.WordLength = UART_WORDLENGTH_8B;
    huart2.Init.StopBits = UART_STOPBITS_1;
    huart2.Init.Parity = UART_PARITY_NONE;
    huart2.Init.Mode = UART_MODE_TX_RX;
    huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    huart2.Init.OverSampling = UART_OVERSAMPLING_16;
    if (HAL_UART_Init(&huart2) != HAL_OK) {
        Error_Handler();
    }
    /* USER CODE BEGIN USART2_Init 2 */

    /* USER CODE END USART2_Init 2 */
}

/**
  * @brief USART3 Initialization Function
  * @param None
  * @retval None
  */
static void MX_USART3_UART_Init(void) {
    /* USER CODE BEGIN USART3_Init 0 */

    /* USER CODE END USART3_Init 0 */

    /* USER CODE BEGIN USART3_Init 1 */

    /* USER CODE END USART3_Init 1 */
    huart3.Instance = USART3;
    huart3.Init.BaudRate = 115200;
    huart3.Init.WordLength = UART_WORDLENGTH_8B;
    huart3.Init.StopBits = UART_STOPBITS_1;
    huart3.Init.Parity = UART_PARITY_NONE;
    huart3.Init.Mode = UART_MODE_TX_RX;
    huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    huart3.Init.OverSampling = UART_OVERSAMPLING_16;
    if (HAL_UART_Init(&huart3) != HAL_OK) {
        Error_Handler();
    }
    /* USER CODE BEGIN USART3_Init 2 */

    /* USER CODE END USART3_Init 2 */
}

/**
  * Enable DMA controller clock
  */
static void MX_DMA_Init(void) {
    /* DMA controller clock enable */
    __HAL_RCC_DMA1_CLK_ENABLE();

    /* DMA interrupt init */
    /* DMA1_Channel3_IRQn interrupt configuration */
    HAL_NVIC_SetPriority(DMA1_Channel3_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(DMA1_Channel3_IRQn);
    /* DMA1_Channel6_IRQn interrupt configuration */
    HAL_NVIC_SetPriority(DMA1_Channel6_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(DMA1_Channel6_IRQn);
}

/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void) {
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    /* USER CODE BEGIN MX_GPIO_Init_1 */

    /* USER CODE END MX_GPIO_Init_1 */

    /* GPIO Ports Clock Enable */
    __HAL_RCC_GPIOC_CLK_ENABLE();
    __HAL_RCC_GPIOD_CLK_ENABLE();
    __HAL_RCC_GPIOA_CLK_ENABLE();
    __HAL_RCC_GPIOB_CLK_ENABLE();

    /*Configure GPIO pin Output Level */
    HAL_GPIO_WritePin(POWER_ON_GPIO_Port, POWER_ON_Pin, GPIO_PIN_SET);

    /*Configure GPIO pin Output Level */
    HAL_GPIO_WritePin(CTL_LORA_POWER_GPIO_Port, CTL_LORA_POWER_Pin, GPIO_PIN_RESET);

    /*Configure GPIO pin Output Level */
    HAL_GPIO_WritePin(PowerLED_GPIO_Port, PowerLED_Pin, GPIO_PIN_RESET);

    /*Configure GPIO pins : SOS_KEY_Pin JUGE_PIN_Pin */
    GPIO_InitStruct.Pin = SOS_KEY_Pin | JUGE_PIN_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

    /*Configure GPIO pin : POWER_ON_Pin */
    GPIO_InitStruct.Pin = POWER_ON_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(POWER_ON_GPIO_Port, &GPIO_InitStruct);

    /*Configure GPIO pin : CTL_LORA_POWER_Pin */
    GPIO_InitStruct.Pin = CTL_LORA_POWER_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_PULLDOWN;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(CTL_LORA_POWER_GPIO_Port, &GPIO_InitStruct);

    /*Configure GPIO pin : PowerLED_Pin */
    GPIO_InitStruct.Pin = PowerLED_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_PULLDOWN;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(PowerLED_GPIO_Port, &GPIO_InitStruct);

    /* EXTI interrupt init*/
    HAL_NVIC_SetPriority(EXTI15_10_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);

    /* USER CODE BEGIN MX_GPIO_Init_2 */

    /* USER CODE END MX_GPIO_Init_2 */
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  Period elapsed callback in non blocking mode
  * @note   This function is called  when TIM3 interrupt took place, inside
  * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
  * a global variable "uwTick" used as application time base.
  * @param  htim : TIM handle
  * @retval None
  */
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) {
    /* USER CODE BEGIN Callback 0 */

    /* USER CODE END Callback 0 */
    if (htim->Instance == TIM3) {
        HAL_IncTick();
    }
    /* USER CODE BEGIN Callback 1 */

    /* USER CODE END Callback 1 */
}

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void) {
    /* USER CODE BEGIN Error_Handler_Debug */
    /* User can add his own implementation to report the HAL error return state */
    __disable_irq();
    while (1) {
    }
    /* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */