/* USER CODE BEGIN Header */
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include "apps_gather.h"

/**
 ******************************************************************************
 * @file    usart.c
 * @brief   This file provides code for the configuration
 *          of the USART instances.
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2024 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 "usart.h"

/* USER CODE BEGIN 0 */

st_scom scom1_hart;
st_scom scom2_rs485;
st_scom scom6_ble;

// st_scom_device scom_device[3];
// st_scom_device scom_device[] = {
//     {1, "scom1_hart", &scom1_hart},
//     {2, "scom2_hart", &scom2_rs485},
//     {6, "scom6_hart", &scom6_ble}};

/* USER CODE END 0 */

UART_HandleTypeDef huart1;
UART_HandleTypeDef huart2;
UART_HandleTypeDef huart3;
UART_HandleTypeDef huart6;
DMA_HandleTypeDef hdma_usart1_tx;
DMA_HandleTypeDef hdma_usart1_rx;
DMA_HandleTypeDef hdma_usart2_tx;
DMA_HandleTypeDef hdma_usart2_rx;
DMA_HandleTypeDef hdma_usart6_tx;
DMA_HandleTypeDef hdma_usart6_rx;

/* USART1 init function */

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 = 1200;
  huart1.Init.WordLength = UART_WORDLENGTH_9B;
  huart1.Init.StopBits = UART_STOPBITS_1;
  huart1.Init.Parity = UART_PARITY_ODD;
  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 */
  __HAL_UART_ENABLE_IT(&huart1, UART_IT_RXNE);
  __HAL_UART_ENABLE_IT(&huart1, UART_IT_IDLE);
  /* USER CODE END USART1_Init 2 */

}
/* USART2 init function */

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 = 9600;
  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 */
  __HAL_UART_ENABLE_IT(&huart2, UART_IT_RXNE);
  __HAL_UART_ENABLE_IT(&huart2, UART_IT_IDLE);
  /* USER CODE END USART2_Init 2 */

}
/* USART3 init function */

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 */

}
/* USART6 init function */

void MX_USART6_UART_Init(void)
{

  /* USER CODE BEGIN USART6_Init 0 */

  /* USER CODE END USART6_Init 0 */

  /* USER CODE BEGIN USART6_Init 1 */

  /* USER CODE END USART6_Init 1 */
  huart6.Instance = USART6;
  huart6.Init.BaudRate = 115200;
  huart6.Init.WordLength = UART_WORDLENGTH_8B;
  huart6.Init.StopBits = UART_STOPBITS_1;
  huart6.Init.Parity = UART_PARITY_NONE;
  huart6.Init.Mode = UART_MODE_TX_RX;
  huart6.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart6.Init.OverSampling = UART_OVERSAMPLING_16;
  if (HAL_UART_Init(&huart6) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART6_Init 2 */
  __HAL_UART_ENABLE_IT(&huart6, UART_IT_RXNE);
  __HAL_UART_ENABLE_IT(&huart6, UART_IT_IDLE);
  /* USER CODE END USART6_Init 2 */

}

void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(uartHandle->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspInit 0 */

  /* USER CODE END USART1_MspInit 0 */
    /* USART1 clock enable */
    __HAL_RCC_USART1_CLK_ENABLE();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**USART1 GPIO Configuration
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX
    */
    GPIO_InitStruct.Pin = HART_TX_Pin|HART_RX_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* USART1 DMA Init */
    /* USART1_TX Init */
    hdma_usart1_tx.Instance = DMA2_Stream7;
    hdma_usart1_tx.Init.Channel = DMA_CHANNEL_4;
    hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart1_tx.Init.Mode = DMA_NORMAL;
    hdma_usart1_tx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_usart1_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart1_tx);

    /* USART1_RX Init */
    hdma_usart1_rx.Instance = DMA2_Stream2;
    hdma_usart1_rx.Init.Channel = DMA_CHANNEL_4;
    hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart1_rx.Init.Mode = DMA_NORMAL;
    hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_usart1_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_usart1_rx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart1_rx);

    /* USART1 interrupt Init */
    HAL_NVIC_SetPriority(USART1_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(USART1_IRQn);
  /* USER CODE BEGIN USART1_MspInit 1 */

  /* USER CODE END USART1_MspInit 1 */
  }
  else if(uartHandle->Instance==USART2)
  {
  /* USER CODE BEGIN USART2_MspInit 0 */

  /* USER CODE END USART2_MspInit 0 */
    /* USART2 clock enable */
    __HAL_RCC_USART2_CLK_ENABLE();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**USART2 GPIO Configuration
    PA2     ------> USART2_TX
    PA3     ------> USART2_RX
    */
    GPIO_InitStruct.Pin = RS485_TX_Pin|RS485_RX_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* USART2 DMA Init */
    /* USART2_TX Init */
    hdma_usart2_tx.Instance = DMA1_Stream6;
    hdma_usart2_tx.Init.Channel = DMA_CHANNEL_4;
    hdma_usart2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_usart2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart2_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart2_tx.Init.Mode = DMA_NORMAL;
    hdma_usart2_tx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_usart2_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_usart2_tx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart2_tx);

    /* USART2_RX Init */
    hdma_usart2_rx.Instance = DMA1_Stream5;
    hdma_usart2_rx.Init.Channel = DMA_CHANNEL_4;
    hdma_usart2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_usart2_rx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart2_rx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart2_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart2_rx.Init.Mode = DMA_NORMAL;
    hdma_usart2_rx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_usart2_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_usart2_rx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart2_rx);

    /* USART2 interrupt Init */
    HAL_NVIC_SetPriority(USART2_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(USART2_IRQn);
  /* USER CODE BEGIN USART2_MspInit 1 */

  /* USER CODE END USART2_MspInit 1 */
  }
  else if(uartHandle->Instance==USART3)
  {
  /* USER CODE BEGIN USART3_MspInit 0 */

  /* USER CODE END USART3_MspInit 0 */
    /* USART3 clock enable */
    __HAL_RCC_USART3_CLK_ENABLE();

    __HAL_RCC_GPIOB_CLK_ENABLE();
    /**USART3 GPIO Configuration
    PB10     ------> USART3_TX
    PB11     ------> USART3_RX
    */
    GPIO_InitStruct.Pin = CH340_TX_Pin|CH340_RX_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

    /* USART3 interrupt Init */
    HAL_NVIC_SetPriority(USART3_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(USART3_IRQn);
  /* USER CODE BEGIN USART3_MspInit 1 */

  /* USER CODE END USART3_MspInit 1 */
  }
  else if(uartHandle->Instance==USART6)
  {
  /* USER CODE BEGIN USART6_MspInit 0 */

  /* USER CODE END USART6_MspInit 0 */
    /* USART6 clock enable */
    __HAL_RCC_USART6_CLK_ENABLE();

    __HAL_RCC_GPIOC_CLK_ENABLE();
    /**USART6 GPIO Configuration
    PC6     ------> USART6_TX
    PC7     ------> USART6_RX
    */
    GPIO_InitStruct.Pin = BLE_TX_Pin|BLE_RX_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF8_USART6;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

    /* USART6 DMA Init */
    /* USART6_TX Init */
    hdma_usart6_tx.Instance = DMA2_Stream6;
    hdma_usart6_tx.Init.Channel = DMA_CHANNEL_5;
    hdma_usart6_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_usart6_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart6_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart6_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart6_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart6_tx.Init.Mode = DMA_NORMAL;
    hdma_usart6_tx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_usart6_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_usart6_tx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart6_tx);

    /* USART6_RX Init */
    hdma_usart6_rx.Instance = DMA2_Stream1;
    hdma_usart6_rx.Init.Channel = DMA_CHANNEL_5;
    hdma_usart6_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_usart6_rx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart6_rx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart6_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart6_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart6_rx.Init.Mode = DMA_NORMAL;
    hdma_usart6_rx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_usart6_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_usart6_rx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart6_rx);

    /* USART6 interrupt Init */
    HAL_NVIC_SetPriority(USART6_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(USART6_IRQn);
  /* USER CODE BEGIN USART6_MspInit 1 */

  /* USER CODE END USART6_MspInit 1 */
  }
}

void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
{

  if(uartHandle->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspDeInit 0 */

  /* USER CODE END USART1_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_USART1_CLK_DISABLE();

    /**USART1 GPIO Configuration
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX
    */
    HAL_GPIO_DeInit(GPIOA, HART_TX_Pin|HART_RX_Pin);

    /* USART1 DMA DeInit */
    HAL_DMA_DeInit(uartHandle->hdmatx);
    HAL_DMA_DeInit(uartHandle->hdmarx);

    /* USART1 interrupt Deinit */
    HAL_NVIC_DisableIRQ(USART1_IRQn);
  /* USER CODE BEGIN USART1_MspDeInit 1 */

  /* USER CODE END USART1_MspDeInit 1 */
  }
  else if(uartHandle->Instance==USART2)
  {
  /* USER CODE BEGIN USART2_MspDeInit 0 */

  /* USER CODE END USART2_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_USART2_CLK_DISABLE();

    /**USART2 GPIO Configuration
    PA2     ------> USART2_TX
    PA3     ------> USART2_RX
    */
    HAL_GPIO_DeInit(GPIOA, RS485_TX_Pin|RS485_RX_Pin);

    /* USART2 DMA DeInit */
    HAL_DMA_DeInit(uartHandle->hdmatx);
    HAL_DMA_DeInit(uartHandle->hdmarx);

    /* USART2 interrupt Deinit */
    HAL_NVIC_DisableIRQ(USART2_IRQn);
  /* USER CODE BEGIN USART2_MspDeInit 1 */

  /* USER CODE END USART2_MspDeInit 1 */
  }
  else if(uartHandle->Instance==USART3)
  {
  /* USER CODE BEGIN USART3_MspDeInit 0 */

  /* USER CODE END USART3_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_USART3_CLK_DISABLE();

    /**USART3 GPIO Configuration
    PB10     ------> USART3_TX
    PB11     ------> USART3_RX
    */
    HAL_GPIO_DeInit(GPIOB, CH340_TX_Pin|CH340_RX_Pin);

    /* USART3 interrupt Deinit */
    HAL_NVIC_DisableIRQ(USART3_IRQn);
  /* USER CODE BEGIN USART3_MspDeInit 1 */

  /* USER CODE END USART3_MspDeInit 1 */
  }
  else if(uartHandle->Instance==USART6)
  {
  /* USER CODE BEGIN USART6_MspDeInit 0 */

  /* USER CODE END USART6_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_USART6_CLK_DISABLE();

    /**USART6 GPIO Configuration
    PC6     ------> USART6_TX
    PC7     ------> USART6_RX
    */
    HAL_GPIO_DeInit(GPIOC, BLE_TX_Pin|BLE_RX_Pin);

    /* USART6 DMA DeInit */
    HAL_DMA_DeInit(uartHandle->hdmatx);
    HAL_DMA_DeInit(uartHandle->hdmarx);

    /* USART6 interrupt Deinit */
    HAL_NVIC_DisableIRQ(USART6_IRQn);
  /* USER CODE BEGIN USART6_MspDeInit 1 */

  /* USER CODE END USART6_MspDeInit 1 */
  }
}

/* USER CODE BEGIN 1 */
int fputc(int ch, FILE *f)
{
  HAL_UART_Transmit(&huart2, (uint8_t *)&ch, 1, 0xFFFF);
  return ch;
}

void usart_printf(UART_HandleTypeDef *huart, char *fmt, ...)
{
  char tx_buff[BUFFER_SIZE];
  uint32_t length;
  va_list ap;
  va_start(ap, fmt);
  vsprintf(tx_buff, fmt, ap);
  va_end(ap);
  length = strlen((const char *)tx_buff);

  HAL_UART_Transmit(huart, (uint8_t *)tx_buff, length, 0xFFFF);
}

//不使用DMA，每接收到一帧都能产生中断，靠空闲中断判断接收结束
//未避免丢失空闲中断，接收到数据后需要将显示任务挂起
//该函数位于中断回调函数之后
void proc_huart_it(UART_HandleTypeDef *huart)
{ 
  //不对发送中断进行处理
  if(st_flag == 3)
  {
    st_flag = 0;
    return;
  }

  st_scom *scom;

  //根据huart句柄和使能标志，判断即将进行的通讯方向
  if(huart == &huart1)
  {
    scom = &scom1_hart;

    if(tabdata.hart_enable == 0)
    {
      //HART未使能的情况下接收到数据，清空数组并返回
      scom->rx_len = 0;
      memset(scom->rx_buff, 0, BUFFER_SIZE);

      __HAL_UART_CLEAR_FLAG(huart, UART_FLAG_RXNE);
      __HAL_UART_CLEAR_IDLEFLAG(huart);

      return;
    }
    else
    {
      sig_trans = TRANS_HART_TO_PC;
    }
  }

  if(huart == &huart6)
  {
    scom = &scom6_ble;

    if(tabdata.bluetooth_enable == 0)
    {
      //蓝牙未使能的情况下接收到数据，清空数组并返回
      scom->rx_len = 0;
      memset(scom->rx_buff, 0, BUFFER_SIZE);

      __HAL_UART_CLEAR_FLAG(huart, UART_FLAG_RXNE);
      __HAL_UART_CLEAR_IDLEFLAG(huart);

      return;
    }
    else
    {
      sig_trans = TRANS_BLE_TO_PC;
    }
  }

  if(huart == &huart2)
  {
    scom = &scom2_rs485;

    if(tabdata.hart_enable)
    {
      sig_trans = TRANS_PC_TO_HART;
    }
    else if(tabdata.bluetooth_enable)
    {
      sig_trans = TRANS_PC_TO_BLE;
    }
    else if(tabdata.modbus_enable)
    {
      sig_trans = TRANS_MODBUS_PC_TO_SIG;
    }
    else
    {
      //所有通讯均未使能的情况下接收到数据，清空数组并返回
      sig_trans = TRANS_NONE;
      scom->rx_len = 0;
      memset(scom->rx_buff, 0, BUFFER_SIZE);

      __HAL_UART_CLEAR_FLAG(huart, UART_FLAG_RXNE);
      __HAL_UART_CLEAR_IDLEFLAG(huart);

      return;
    }
  }

  if (!scom) return;

  //进入此处说明接收到数据，并且对应通道使能

  //显示任务挂起
  screen_suspend_flag = 1;

  //记录起始时刻
  if(st_flag == 0)
  {
    st_flag = 1;
    tick_start = xTaskGetTickCountFromISR();
  }

  if (__HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE) != RESET)
  {
    if (scom->rx_len >= BUFFER_SIZE - 1)
      scom->rx_len = 0;

    //将接收到的数据逐个存入数组
    scom->rx_buff[scom->rx_len++] = (uint8_t)(huart->Instance->DR & 0xff);

    __HAL_UART_CLEAR_FLAG(huart, UART_FLAG_RXNE);

  }
  if (__HAL_UART_GET_FLAG(huart, UART_FLAG_IDLE) != RESET)
  {
    //接收结束
    scom->rx_flag = TRUE;

    //记录中间时刻
    st_flag = 2;
    tick_middle = xTaskGetTickCountFromISR();

    __HAL_UART_CLEAR_IDLEFLAG(huart);
    
  }
}

//DMA接收
//DMA接收只有半满中断、空闲中断和完成（溢出）中断，能够使用的只有空闲中断，因此起始时刻在定时器tim2中尝试捕获
//DMA绕过CPU，因此可以不用挂起显示任务
void proc_huart_it_dma(UART_HandleTypeDef *huart)
{
  if(st_flag == 3)
  {
    st_flag = 0;
    return;
  }

  st_scom *scom;

  if(huart == &huart1)
  {
    scom = &scom1_hart;

    if(tabdata.hart_enable == 0)
    {
      scom->rx_len = 0;
      memset(scom->rx_buff, 0, BUFFER_SIZE);

      sig_trans = TRANS_NONE;
      __HAL_UART_CLEAR_IDLEFLAG(huart);
      HAL_UART_DMAStop(huart);
      HAL_UART_Receive_DMA(huart, scom->rx_buff, BUFFER_SIZE);

      return;
    }
    else
    {
      sig_trans = TRANS_HART_TO_PC;
    }
  }

  if(huart == &huart6)
  {
    scom = &scom6_ble;

    if(tabdata.bluetooth_enable == 0)
    {
      scom->rx_len = 0;
      memset(scom->rx_buff, 0, BUFFER_SIZE);

      sig_trans = TRANS_NONE;
      __HAL_UART_CLEAR_IDLEFLAG(huart);
      HAL_UART_DMAStop(huart);
      HAL_UART_Receive_DMA(huart, scom->rx_buff, BUFFER_SIZE);

      return;
    }
    else
    {
      sig_trans = TRANS_BLE_TO_PC;
    }
  }

  if(huart == &huart2)
  {
    scom = &scom2_rs485;

    if(tabdata.hart_enable)
    {
      sig_trans = TRANS_PC_TO_HART;
    }
    else if(tabdata.bluetooth_enable)
    {
      sig_trans = TRANS_PC_TO_BLE;
    }
    else if(tabdata.modbus_enable)
    {
      sig_trans = TRANS_MODBUS_PC_TO_SIG;
    }
    else
    {
      sig_trans = TRANS_NONE;
      scom->rx_len = 0;
      memset(scom->rx_buff, 0, BUFFER_SIZE);

      __HAL_UART_CLEAR_IDLEFLAG(huart);
      HAL_UART_DMAStop(huart);
      HAL_UART_Receive_DMA(huart, scom->rx_buff, BUFFER_SIZE);

      return;
    }
  }

  if (!scom) return;

  if (__HAL_UART_GET_FLAG(huart, UART_FLAG_IDLE) != RESET)
  {
    __HAL_UART_CLEAR_IDLEFLAG(huart);

    HAL_UART_DMAStop(huart);

    //计算接收到的数据长度
    scom->rx_len = BUFFER_SIZE - __HAL_DMA_GET_COUNTER(huart->hdmarx);
    if( ( 0 < scom->rx_len )&&( scom->rx_len < BUFFER_SIZE ) )
    {
      scom->rx_flag = TRUE;
    }
    else
    {
      memset(scom->rx_buff, 0, BUFFER_SIZE);
      scom->rx_len = 0;
    }

    tick_middle = xTaskGetTickCountFromISR();

    HAL_UART_Receive_DMA(huart, scom->rx_buff, BUFFER_SIZE);
  }
}
/* USER CODE END 1 */