/*
 * user.c
 *
 *  Created on: Sep 23, 2024
 *      Author: 10425
 */
#include "user.h"

volatile uint8_t  	usart_count = 0;						//串口接收数据个数
uint8_t 		  	RxBuff[BUFF_LEN] = {0};					//串口接收缓冲区
uint8_t  		  	TXBuff[BUFF_LEN] = {0};					//串口发送缓冲区
uint8_t	 			uBuff[BUFF_LEN] = {0};					//用户缓冲区
volatile int8_t 	polarity = 1;							//电场极性,投退状态
volatile uint8_t  	electric_flag = 0;						//外加的反向电场极限，0为负，1为正

volatile struct REGISTER dev_reg ={0};

uint16_t 			RegularConvData_Tab[ADCBUFF_LEN] = {0}; //ADC采集原始数据
volatile int16_t	adc_positive = 0, adc_negative=0;		//加外加电场后的adc值

char version_string[]="DCE-2406-V5.5_HAL";
uint16_t version_number = 560;
int16_t  hard_version = 600;

uint16_t	user_temp = 0;
/*1:传感器数据        2:投退状态         3：电机状态
 * 4：PWM波占空比	   5：传感器缩放系数	   6：传感器加减系数
* 7：电机运行时间	   8:设置波特率		   9：温湿度
* 10:方波投退判断阈值   11：传感器退阈值    12:电压值
* 13:电压阈值，电压小于该值时为退
 */
int16_t  user_register[14] = {0};				//寄存器值



//求adc波形的峰峰值
void ADC_MAX(void)
{
	uint8_t i =0;
	static uint8_t number = 0;
	uint16_t max = 0,min = 0;
    static int16_t	adc1_max = 0;

	max = RegularConvData_Tab[0];
	min = RegularConvData_Tab[0];
	for(i = 1;i<ADCBUFF_LEN;i++)
	{
		if(RegularConvData_Tab[i] > max  )
		{
			max = RegularConvData_Tab[i];
		}
		else if(RegularConvData_Tab[i] < min )
		{
			min = RegularConvData_Tab[i];
		}
	}

	if(max - min > 0)
	{
		adc1_max += max - min;
	}

	if(number++>=4)
	{
	    int16_t a = adc1_max;
		adc1_max = a*3300.0/5.0/4095.0;
		adc1_max = adc1_max*dev_reg.adcValue_factor/10 + dev_reg.adcValue_addnum;
		adc1_max = polarity*adc1_max;

//		HAL_GPIO_WritePin(TXEN_485_GPIO_Port, TXEN_485_Pin, GPIO_PIN_SET);//使能485芯片发送
//		HAL_UART_Transmit_DMA(&huart1, RegularConvData_Tab, 250);
//		HAL_Delay(500);

		dev_reg.adc_max = adc1_max;


		if(electric_flag == 1)
		{
			if(dev_reg.adc_max>adc_positive)
			{
				adc_positive = dev_reg.adc_max;
			}
		}
		else if(electric_flag == 0)
		{
			if(dev_reg.adc_max<adc_negative)
			{
				adc_negative = dev_reg.adc_max;
			}

		}
		adc1_max = 0;
		number = 0;

	}
}



void user_init(void)
{
	uint8_t parameters[18];

	__HAL_UART_ENABLE_IT(&huart1,UART_IT_IDLE);
	__HAL_UART_CLEAR_IT(&huart1,UART_CLEAR_IDLEF|UART_CLEAR_TCF);
	bsp_InitTimer();
	AHT20_Init(&SENx,2000,0x38);
	HAL_StatusTypeDef status = AT24C16_Init();
	if(status != HAL_OK)AT24C16_Init();

	HAL_TIM_Base_Start_IT(&htim14);
	HAL_TIM_PWM_Start_IT(&htim14, TIM_CHANNEL_1);   //开启PWM波输出

	HAL_UART_DMAStop(&huart1);//复位DMA					//串口DMA接受
	HAL_UART_Receive_DMA(&huart1,(uint8_t *)RxBuff,sizeof(RxBuff));


	HAL_ADC_Start_DMA(&hadc1, RegularConvData_Tab, ADCBUFF_LEN);	//开启ADC转换

	//DE发射器使能，高电平有效，RE接收器使能，低电平有效
	HAL_GPIO_WritePin(TXEN_485_GPIO_Port, TXEN_485_Pin, GPIO_PIN_RESET);

	//读取设备参数
//	 uint8_t a[] = {5,4,3,2,1};
//	 AT24C16_WriteBytes(50,a, 5);
	status=AT24C16_ReadBytes(0, parameters, sizeof(parameters));
	if(status == HAL_OK)
	{
		dev_reg.addr = parameters[0]<<8| parameters[1];
		if(dev_reg.addr == 0xFF )
		{
			dev_reg.addr =1;
		}

		dev_reg.baud_rate = parameters[2]<<8|parameters[3];
		if(dev_reg.baud_rate == 0xFF)
		{
			dev_reg.baud_rate =0;
		}
		Uart_SetBaud(dev_reg.baud_rate);

		dev_reg.pwm_pulse = parameters[4]<<8 | parameters[5];
		if(dev_reg.pwm_pulse == 0xFFFF)
		{
			dev_reg.pwm_pulse = 700;
		}
		__HAL_TIM_SET_COMPARE(&htim14,TIM_CHANNEL_1,dev_reg.pwm_pulse);

		dev_reg.adcValue_factor = parameters[6]<<8 | parameters[7];
		if(dev_reg.adcValue_factor == 0xFFFF)
		{
			dev_reg.adcValue_factor = 10;
		}

		dev_reg.adcValue_addnum = parameters[8]<<8 | parameters[9];
		if(dev_reg.adcValue_addnum==0xFFFF)
		{
			dev_reg.adcValue_addnum =0;
		}

		//投退方波阈值
		dev_reg.estimate_value = parameters[10]<<8 | parameters[11];
		if(dev_reg.estimate_value == 0xFFFF)
		{
			dev_reg.estimate_value = 40;
		}

		//传感器退阈值
		dev_reg.threshold_value =	parameters[12]<<8 | parameters[13];
		if(dev_reg.threshold_value == 0xFFFF)
		{
			dev_reg.threshold_value =300;
		}

		//电压标定值
		dev_reg.reference = parameters[14]<<8 | parameters[15];
		if(dev_reg.reference == 0xFFFF)
		{
			dev_reg.reference =0;
		}

		//电压阈值
		dev_reg.voltage_thresh = parameters[16]<<8 | parameters[17];
		if(dev_reg.voltage_thresh == 0xFFFF)
		{
			dev_reg.voltage_thresh = 60;
		}
	}
}


void Usart_Receive()
{
	if( (uint16_t)uBuff[0] == dev_reg.addr )
	{
		switch(uBuff[1])
		{
		case 0x03:						//读传感器数据
			MODBUS_03H();
			break;

		case 0x06:
			MODBUS_06H();
			break;

		case 0x10:
			MODBUS_10H();
			break;

		default:break;
		}
	}

	//广播指令
	else if((uint16_t)uBuff[0] == 0 )
	{
		switch(uBuff[1])
		{
		case 0x06:
			MODBUS_06H();
			break;
		case 0x10:
			MODBUS_10H();
			break;

		default:break;
		}
	}
}

/************************************************************
 * Name:    CRC-16/MODBUS       x16+x15+x2+1
 * Poly:    0x8005
 * Init:    0xFFFF
 * Refin:   True
 * Refout:  True
 * Xorout:  0x0000
 * Note:
 **********************************************************/
uint16_t crc16_modbus(uint8_t *data, uint16_t length)
{
    uint8_t i;
    uint16_t crc = 0xffff;        // Initial value
    while(length--)
    {
        crc ^= *data++;            // crc ^= *data; data++;
        for (i = 0; i < 8; ++i)
        {
            if (crc & 1)
                crc = (crc >> 1) ^ 0xA001;        // 0xA001 = reverse 0x8005
            else
                crc = (crc >> 1);
        }
    }
    return crc;
}


void MODBUS_03H()
{
	//接收到的数据帧
	//485地址 功能位	寄存器地址	寄存器个数	crc低位 crc高位
	uint8_t		crch,crcl;
	uint16_t 	crcack;
	uint16_t 	addr 	=  (uint16_t)uBuff[2]<<8 | uBuff[3];	//寄存器地址
	uint16_t	number  =  (uint16_t)uBuff[4]<<8 | uBuff[5];	//寄存器数量
	uint16_t 	crc = 	crc16_modbus(uBuff,6);               	//计算CRC
	crch = crc>>8;
	crcl = crc&0x00FF;

	user_register[1]	= dev_reg.adc_max;
	user_register[2]	= dev_reg.adc_state;
	if(dev_reg.voltage == 0)	user_register[2]= 0;
	else if(abs(dev_reg.voltage) < dev_reg.voltage_thresh && user_temp>6)
	{
		user_register[2]= 0;
		dev_reg.voltage = 0;
	}
	user_register[3]	= dev_reg.motor_state;
	user_register[4]	= dev_reg.pwm_pulse;
	user_register[5]	= dev_reg.adcValue_factor;
	user_register[6]	= dev_reg.adcValue_addnum;
	user_register[7]	= dev_reg.peak_value;
	user_register[8]	= dev_reg.baud_rate;
	user_register[9]	= (dev_reg.humidness<<8)|dev_reg.tempe;
	user_register[10]	= dev_reg.estimate_value;
	user_register[11]	= dev_reg.threshold_value;
	user_register[12]	= dev_reg.voltage;
	if(abs(dev_reg.adc_max)>3100)
	{
		user_register[12] =dev_reg.adc_max/abs(dev_reg.adc_max)*200;;
	}
	user_register[13]	= dev_reg.voltage_thresh;
	if( (addr+number) <= 14 && crcl == uBuff[6] && crch == uBuff[7])
	{
		uint8_t cnt = 0;
		TXBuff[cnt++] = uBuff[0];
		TXBuff[cnt++] = uBuff[1];
		TXBuff[cnt++] = number*2;			//数据个数，单位/字节
		for(uint8_t i =0;i<number;i++)
		{
			TXBuff[cnt++] = user_register[addr+i] >>8;
			TXBuff[cnt++] = user_register[addr+i] & 0xFF;
		}
		crcack = crc16_modbus(TXBuff,cnt);
		TXBuff[cnt++] = crcack & 0xff;
		TXBuff[cnt++] = crcack >>8;
		send_ack(cnt);
	}

	//读取版本号
	if(addr == 0x00FF && number == 0x0001 && crcl== uBuff[6] && crch== uBuff[7])           //比较寄存器值和CRC校验值
	{

		uint8_t i;
		for(i=0;i<strlen(version_string);i++)
		{
			TXBuff[i]	= version_string[i];
		}

		send_ack(strlen(version_string));	//打印版本号
	}

	//版本号，软件版本
	if( addr == 0xFD && crcl == uBuff[6] && crch == uBuff[7])
	{
		uint8_t cnt = 0;
		TXBuff[cnt++] = uBuff[0];
		TXBuff[cnt++] = uBuff[1];
		TXBuff[cnt++] = number*2;			//数据个数，单位/字节
		TXBuff[cnt++] = version_number >>8;
		TXBuff[cnt++] = version_number  & 0xFF;
		crcack = crc16_modbus(TXBuff,cnt);
		TXBuff[cnt++] = crcack & 0xff;
		TXBuff[cnt++] = crcack >>8;
		send_ack(cnt);
	}
	//硬件版本
	if( addr == 0xFC && crcl == uBuff[6] && crch == uBuff[7])
	{
		uint8_t cnt = 0;
		TXBuff[cnt++] = uBuff[0];
		TXBuff[cnt++] = uBuff[1];
		TXBuff[cnt++] = number*2;			//数据个数，单位/字节
		TXBuff[cnt++] = hard_version >>8;
		TXBuff[cnt++] = hard_version  & 0xFF;
		crcack = crc16_modbus(TXBuff,cnt);
		TXBuff[cnt++] = crcack & 0xff;
		TXBuff[cnt++] = crcack >>8;
		send_ack(cnt);
	}

}


void MODBUS_06H()
{
	enum WRITE_REG_ADDR write_reg_addr;

	int16_t 	data = 	((int16_t)uBuff[4]<<8)|uBuff[5]; //数据						//要修改的数据
	uint16_t	reg  = 	((int16_t)uBuff[2]<<8)|uBuff[3]; //寄存器地址					//寄存器地址
	uint16_t 	crc  = 	crc16_modbus( uBuff,6);
	for(uint8_t i = 0;i<6;i++)
	{
		TXBuff[i] = uBuff[i];
	}
	TXBuff[6] = crc&0xFF;
	TXBuff[7] = crc>>8;

	if(TXBuff[6]!=uBuff[6] || TXBuff[7]!=uBuff[7])return;

	//修改地址
	if(reg == 0x000f )
	{
		if(data>=1 && data <= 247)
		{
			int16_t temp = dev_reg.addr;
			dev_reg.addr = data;
			write_reg_addr = write_addr;
			if(write_flash(write_reg_addr,data)==HAL_OK)
			{
				send_ack(8);
			}
			else {
				dev_reg.addr = temp;
			}
		}
	}

	//设置PWM波占空比
	if(reg == 0x0004)
	{
		if(data>=0 && data <= 1000)
		{
			int16_t temp = dev_reg.addr;
			dev_reg.pwm_pulse = data;
			write_reg_addr = write_pulse;
			if(write_flash(write_reg_addr,data)==HAL_OK)
			{
				send_ack(8);
				__HAL_TIM_SET_COMPARE(&htim14,TIM_CHANNEL_1,dev_reg.pwm_pulse);     //设置脉宽
			}
			else {
				dev_reg.pwm_pulse = temp;
			}
		}
	}

	//设置传感器缩放系数
	if(reg == 0x0005)
	{
		if(data>=-3300 && data <= 3300)
		{
			int16_t temp = dev_reg.adcValue_factor;
			dev_reg.adcValue_factor = data*10/dev_reg.adc_max;
			if(data>=5 && data <= 20)dev_reg.adcValue_factor = data;

			write_reg_addr = write_factor;
			if(dev_reg.adcValue_factor>=5 && dev_reg.adcValue_factor<=20)
			{
				if(write_flash(write_reg_addr,data)==HAL_OK)
				{
					send_ack(8);
				}
				else {
					dev_reg.adcValue_factor = temp;
				}
			}
		}
	}

	//设置传感器加减系数
	if(reg == 0x0006)
	{
		if(data>= -2000 && data <= 2000)
		{
			int16_t temp = dev_reg.adcValue_addnum;
			dev_reg.adcValue_addnum = data;
			write_reg_addr = write_addnum;
			if(write_flash(write_reg_addr,data)==HAL_OK)
			{
				send_ack(8);
			}
			else {
				dev_reg.adcValue_addnum = temp;
			}
		}
	}

	//设置波特率
	if(reg == 0x0008)
	{
		if(data>= 0 && data <= 3)
		{
			int16_t temp = dev_reg.baud_rate;
			dev_reg.baud_rate = data;
			write_reg_addr = write_baud;
			if(write_flash(write_reg_addr,data)==HAL_OK)
			{
				send_ack(8);
			}
			else {
				dev_reg.baud_rate = temp;
			}
		}
	}

	//设置投退方波阈值
	if(reg == 0x000A)
	{
		if(data>= 0 && data <= 1500)
		{
			int16_t temp = dev_reg.estimate_value;
			dev_reg.estimate_value = data;
			write_reg_addr = write_estimate;
			if(write_flash(write_reg_addr,data)==HAL_OK)
			{
				send_ack(8);
			}
			else {
				dev_reg.estimate_value = temp;
			}
		}
	}

	//设置原始数据退阈值
	if(reg == 0x000B)
	{
		if(data>= 0 && data <= 1500)
		{
			int16_t temp = dev_reg.threshold_value;
			dev_reg.threshold_value = data;
			write_reg_addr = write_threshold;
			if(write_flash(write_reg_addr,data)==HAL_OK)
			{
				send_ack(8);
			}
			else {
				dev_reg.threshold_value = temp;
			}
		}
	}

	//设置电压参考值
	if(reg == 12)
	{
		if(data>= -220 && data <= 220)
		{
			int16_t temp = dev_reg.reference;
			if(data != 0)
			{
				dev_reg.reference = 110.0/data*dev_reg.adc_max;
			}
			else {
				dev_reg.reference =1;
			}
			write_reg_addr = write_reference;
			if(write_flash(write_reg_addr,dev_reg.reference)==HAL_OK)
			{
				send_ack(8);
			}
			else {
				dev_reg.reference = temp;
			}
		}
	}

	//设置电压阈值
	if(reg == 13)
	{
		if(data>= 0 && data <= 220)
		{
			int16_t temp = dev_reg.voltage_thresh;
			dev_reg.voltage_thresh = data;
			write_reg_addr = write_voltageth;
			if(write_flash(write_reg_addr,data)==HAL_OK)
			{
				send_ack(8);
			}
			else {
				dev_reg.voltage_thresh = temp;
			}
		}
	}
}

void MODBUS_10H()
{
	//用于更新代码,每次固定接收128字节数据
	static uint16_t 	current_addr =0;			//当前寄存器地址，表示当前的块号
	static uint16_t		file_size;					//文件大小
	static uint16_t		current_size = 0;
	uint16_t crctemp;

	uint16_t 	reg_addr 	=  (uint16_t)uBuff[2]<<8 | uBuff[3];	//寄存器地址
	uint16_t	reg_number  =  (uint16_t)uBuff[4]<<8 | uBuff[5];	//寄存器数量
	uint8_t		byte_number = 	uBuff[6];							//字节数
	uint16_t 	crc  = 	crc16_modbus( uBuff,7+byte_number);
	if((crc&0xFF)!=uBuff[6+byte_number+1] || crc>>8!=uBuff[6+byte_number+2])
	{

		//返回错误响应
		if(uBuff[0]!=0)   //地址不为0时
		{
			TXBuff[0] = dev_reg.addr;
			TXBuff[1] = 0x10;
			TXBuff[2] = 1;		//错误码
			crctemp = crc16_modbus(TXBuff, 3);
			TXBuff[3] = crctemp&0xFF;
			TXBuff[4] = crctemp>>8;
			send_ack(5);
		}
		return;
	}

	uint8_t	data[128];
	memcpy(data,&uBuff[7],128);
	if(reg_addr == 0 && reg_number == 1 && byte_number == 2)
	{
		bsp_StartAutoTimer(8, 100);		//升级程序时，灯变为快闪
		file_size =0;
		current_addr = 0;
		file_size = data[0]<<8 | data[1];
		current_addr++;

		//正常响应
		if(uBuff[0]!=0)   //地址不为0时
		{
			TXBuff[0] = dev_reg.addr;
			TXBuff[1] = 0x10;
			TXBuff[2] = reg_addr>>8;		//错误码
			TXBuff[3] = reg_addr&0xFF;
			TXBuff[4] = reg_number>>8;		//错误码
			TXBuff[5] = reg_number&0xFF;
			crctemp = crc16_modbus(TXBuff, 3);
			TXBuff[6] = crctemp&0xFF;
			TXBuff[7] = crctemp>>8;
			send_ack(8);
		}
		AT24C16_WriteBytes(64, data, 2);

		//关闭中断
		__disable_irq();
		HAL_ADC_Stop_DMA(&hadc1);

		//跳转
		SCB->VTOR = app1_addr;
		LoadApp loadapp;
		loadapp=(LoadApp)( *(volatile uint32_t*)(app1_addr+4) );		        //用户代码区第二个字为程序开始地址(复位地址)
		__set_MSP(*(volatile uint32_t*)app1_addr);	//初始化MSP

		loadapp();

	}
}


//写入代码，length长度必须为8的倍数，
HAL_StatusTypeDef write_code(uint32_t addr,uint8_t* data,uint16_t length)
{
	FLASH_EraseInitTypeDef EraseInitType;
	uint32_t PageError;
	uint32_t current_page = (addr-FLASH_BASE_ADDR)/FLASH_SECTOR_SIZE;

	HAL_FLASH_Unlock();
	if( (addr-FLASH_BASE_ADDR)%FLASH_SECTOR_SIZE == 0)
	{
		EraseInitType.TypeErase = FLASH_TYPEERASE_PAGES;		//页擦书
		EraseInitType.Page = current_page;						//擦除起始页
		EraseInitType.NbPages = 1;								//擦除数量

		if(HAL_FLASHEx_Erase(&EraseInitType, &PageError)!= HAL_OK)
		{
			return HAL_ERROR;
		}
	}

	uint64_t *a = (uint64_t*)data;
	for(int i=0;i<length/8;i++)
	{
		if(HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD, addr+i*8, *(a+i)) != HAL_OK)
		{
			return HAL_ERROR;
		}
	}
	HAL_FLASH_Lock();
	return	HAL_OK;
}


void send_ack(uint8_t cnt)
{
	HAL_GPIO_WritePin(TXEN_485_GPIO_Port, TXEN_485_Pin, GPIO_PIN_SET);//使能485芯片发送
	HAL_UART_Transmit_DMA(&huart1, TXBuff, cnt);
	while(HAL_DMA_GetState(&hdma_usart1_tx) != HAL_DMA_STATE_READY);
	delay_ms(5);
	HAL_GPIO_WritePin(TXEN_485_GPIO_Port, TXEN_485_Pin, GPIO_PIN_RESET);//使能485芯片接收
}


void Uart_SetBaud(int16_t baud)
{
	HAL_UART_DeInit(&huart1);		//如果不清除，DMA会产生bug

	huart1.Instance = USART1;
	huart1.Init.BaudRate = 9600;
	if(baud == 1)
	{
		huart1.Init.BaudRate = 19200;
	}
	else if(baud == 2)
	{
		huart1.Init.BaudRate = 57600;
	}
	else if(baud == 3)
	{
		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;
  huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
  huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  if (HAL_UART_Init(&huart1) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK)
  {
    Error_Handler();
  }

  __HAL_UART_ENABLE_IT(&huart1,UART_IT_IDLE);
  __HAL_UART_CLEAR_IT(&huart1,UART_CLEAR_IDLEF|UART_CLEAR_TCF);
}

//保存数据
HAL_StatusTypeDef write_flash(uint16_t addr,int16_t data)
{
	uint8_t temp[2];
	temp[0] = data>>8;
	temp[1]	= data&0xFF;
//	addr = addr;
	return AT24C16_WriteBytes(addr, temp, sizeof(temp));

}

//外部中断回调函数，
void HAL_GPIO_EXTI_Rising_Callback(uint16_t GPIO_Pin)
{
	static uint8_t count = 0,polaNumber =0;
	static int16_t last_negative = 0;
	static GPIO_PinState PH2_value =GPIO_PIN_RESET,PH1_value = GPIO_PIN_RESET;
	PH2_value = HAL_GPIO_ReadPin(PH2_GPIO_Port, PH2_Pin);
	PH1_value = HAL_GPIO_ReadPin(PH1_GPIO_Port, PH1_Pin);

	if(GPIO_Pin == PH1_Pin && PH1_value == GPIO_PIN_SET )
	{

		//判断电机运动状态
		static uint32_t last_tick = 0;
//		last_tick = HAL_GetTick();
		uint32_t	a = HAL_GetTick();
		if( (a -last_tick)  < 13)
		{
			bsp_StartAutoTimer(4,1000);				//1秒没有检测到上升沿，说明电机不正常或红外线发射接收不正常
			if(dev_reg.motor_state == 1)
			{
				bsp_StartAutoTimer(2,500);		//led2闪烁
				dev_reg.motor_state = 0;
			}

		}
		last_tick = a;

		//判断极性
		if(PH2_value==GPIO_PIN_SET)
		{
				polaNumber ++;
 		}
		count++;
 		if(count>=10)
		{
				if(polaNumber>=3)polarity=1;
				else
				{polarity = -1;}
				count =0;
				polaNumber =0;
		}

	}

	else if(GPIO_Pin == SDA_Pin)			//判断压板投退状态
	{
		bsp_StartAutoTimer(3,5000);			//5秒没有上升下降沿，说明可能没有加反向电场
		static uint8_t posinumber =0,neganumber = 0,last_state=1;
		if(HAL_GPIO_ReadPin(SDA_GPIO_Port, SDA_Pin) == GPIO_PIN_SET)  //上升沿
		{
			electric_flag = 1;
			dev_reg.peak_value = adc_positive - adc_negative;
			if(adc_positive - adc_negative >dev_reg.estimate_value
					&& adc_positive - last_negative >dev_reg.estimate_value)
			{
				posinumber++;
				neganumber = 0;
				if(posinumber>=3)
				{
					dev_reg.adc_state = 0;				//0是退
				}
				if(posinumber>250)posinumber = 3;
			}
			else
			{
				neganumber++;
				posinumber = 0;
				if(neganumber>=2)
				{
					dev_reg.adc_state = 1;				//1是投
					if(last_state == 0)
					{
						dev_reg.reference =0;
					}
				}
				if(neganumber>250)neganumber = 3;
			}
			last_negative =adc_negative;

			static uint16_t thresh_cnt =0;
			if( abs(adc_positive)<dev_reg.threshold_value && abs(adc_negative)<dev_reg.threshold_value)
			{
				thresh_cnt++;
				if(thresh_cnt>=2)
				{
					dev_reg.adc_state = 0;				//0是退
					thresh_cnt =2;
				}

			}
			else {
				thresh_cnt = 0;
			}

			adc_positive = dev_reg.adc_max; //上升沿赋值正值，下降沿赋值负值
			last_state = dev_reg.adc_state;
		}
	}
	__HAL_GPIO_EXTI_CLEAR_RISING_IT(GPIO_Pin);
}


void   HAL_GPIO_EXTI_Falling_Callback(uint16_t GPIO_Pin)
{
	if(GPIO_Pin == SDA_Pin)
	{
		if(HAL_GPIO_ReadPin(SDA_GPIO_Port, SDA_Pin) == GPIO_PIN_RESET)
		{
			electric_flag = 0;
		}
		adc_negative = dev_reg.adc_max;
	}
}


//计算电压值，每6秒钟调用一次
void calculate_voltage(void)
{
	static uint16_t last_count = 0,count =0;
	static int16_t last_adc = 0;
	static int8_t a = 0;

	if(dev_reg.adc_state == 0)
	{
		dev_reg.voltage = 0;
	}
	else
	{
		if(dev_reg.reference == 0)					//0为默认处理方式，
		{
			count++;
			a = dev_reg.adc_max/abs(dev_reg.adc_max);
			dev_reg.voltage =a*110;
			if(count -last_count >= 5 )   //每6秒钟调用一次
			{
				if(abs(dev_reg.adc_max-last_adc) < 40 && count >= 30)
				{
					dev_reg.reference = dev_reg.adc_max;
					count =0;
				}
				last_count = count;
				last_adc = dev_reg.adc_max;
			}

		}

		else if(dev_reg.reference == 1)   //人为设置电压为0时的处理
		{
			dev_reg.voltage =0;
			if(abs(dev_reg.adc_max-last_adc)>300 )
			{
				dev_reg.reference = 0;
				write_flash(write_reference,dev_reg.reference);

			}
			last_adc = dev_reg.adc_max;
		}

	}
}