329 lines
8.3 KiB
C
329 lines
8.3 KiB
C
/*
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* user.c
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*
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* Created on: 2023年1月29日
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* Author: wyf
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*/
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#include "user.h"
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#include "user_lib.h"
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uint16_t RS485ADDR = 0;
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uint16_t RegularConvData_Tab[ADCBUFF_LEN] = {0}; //ADC采集原始数据
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int16_t adc_max = 0,adc1_max = 0; //最终峰峰值和
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uint8_t usart_count = 0; //串口接收数据个数
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uint16_t pwm_pulse = 0; //pwm波脉宽
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uint16_t adcValue_factor = 0; //adc测量值得修正系数*10
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uint8_t RxBuff[BUFF_LEN] = {0}; //串口接收缓冲区
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uint8_t TXBuff[BUFF_LEN] = {0}; //串口发送缓冲区
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uint8_t uBuff[BUFF_LEN] = {0}; //用户缓冲区
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int8_t polarity = 1; //电场极性
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//计算峰峰值
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void ADC_MAX(void)
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{
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uint8_t i =0;
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static uint8_t number = 0;
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uint16_t max = 0,min = 0;
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max = RegularConvData_Tab[0];
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min = RegularConvData_Tab[0];
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for(i = 1;i<ADCBUFF_LEN;i++)
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{
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if(RegularConvData_Tab[i] > max )
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{
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max = RegularConvData_Tab[i];
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}
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else if(RegularConvData_Tab[i] < min )
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{
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min = RegularConvData_Tab[i];
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}
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}
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if(max - min > 0)
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{
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adc1_max += max - min;
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}
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if(number++>=4)
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{
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adc1_max = adc1_max/5*3300/4095;
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if(abs(adc1_max-adc_max) > 10)
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{
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adc_max = adc1_max*adcValue_factor/10;
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adc_max = polarity*adc1_max;
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}
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adc1_max = 0;
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number = 0;
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}
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}
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void Usart_Receive(void)
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{
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if( (uint16_t)uBuff[0] == RS485ADDR && usart_count == 8)
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{
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switch(uBuff[1]) //第二个字节，功能码
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{
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case 0x03: //读取传感器数据
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MODBUS_03H();
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break;
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case 0x06: //修改modbus从机地址，默认为1
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MODBUS_06H();
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break;
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default:break;
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}
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}
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//处理广播命令
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else if( (uint16_t)uBuff[0] == 0 && usart_count== 8)
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{
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switch(uBuff[1]) //第二个字节，功能码
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{
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case 0x06: //修改modbus从机地址，默认为1
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MODBUS_06H();
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break;
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default:break;
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}
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}
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usart_count = 0; // 清零，下次再次进入
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// memset(uBuff, 0, sizeof(uBuff)); // 清空
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}
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//读取传感器数值
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void MODBUS_03H(void)
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{
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uint8_t crch,crcl;
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uint16_t crcack;
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uint16_t addr = BEBufToUint16( (uint8_t*)(&uBuff[2])); //寄存器地址
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uint16_t number = BEBufToUint16( (uint8_t*)(&uBuff[4])); //寄存器数量
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uint16_t crc = CRC16_Modbus( (uint8_t*)(&uBuff[0]),6); //计算CRC
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crch = crc>>8;
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crcl = crc&0x00FF;
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//返回传感器测量数据
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if(addr == 0x0001 && number == 0x0001 &&crch== uBuff[6] && crcl== uBuff[7]) //比较寄存器值和CRC校验值
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{
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TXBuff[0] = uBuff[0]; //传感器地址
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TXBuff[1] = uBuff[1]; //功能码
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TXBuff[2] = 0x02; //数据的字节数
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TXBuff[3] = adc_max>>8; //数据的高字节
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TXBuff[4] = adc_max&0x00ff; //数据的低字节
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crcack = CRC16_Modbus( (uint8_t*)(&TXBuff[0]),5); //计算返回数据CRC
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TXBuff[5] = crcack>>8; //返回数据crc高字节
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TXBuff[6] = crcack&0x00ff; //crc低字节
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send_ack(7+2);
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}
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//返回软件版本
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if(addr == 0x00FF && number == 0x0001 && crch== uBuff[6] && crcl== uBuff[7]) //比较寄存器值和CRC校验值
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{
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uint8_t string[]="DCE-2302-V4_HAL";
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uint8_t i;
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for(i=0;i<sizeof(string);i++)
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{
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TXBuff[i] = string[i];
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}
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send_ack(sizeof(string)+1); //打印版本号
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}
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//返回传感器运行时间
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//返回pwm波占空比
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if(addr == 0x0002 && number == 0x0001 &&crch== uBuff[6] && crcl== uBuff[7]) //比较寄存器值和CRC校验值
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{
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TXBuff[0] = uBuff[0]; //传感器地址
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TXBuff[1] = uBuff[1]; //功能码
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TXBuff[2] = 0x02; //数据的字节数
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TXBuff[3] = pwm_pulse>>8; //数据的高字节
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TXBuff[4] = pwm_pulse&0x00ff; //数据的低字节
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crcack = CRC16_Modbus( (uint8_t*)(&TXBuff[0]),5); //计算返回数据CRC
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TXBuff[5] = crcack>>8; //返回数据crc高字节
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TXBuff[6] = crcack&0x00ff; //crc低字节
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send_ack(7+2);
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}
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//返回修改系数
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if(addr == 0x0003 && number == 0x0001 &&crch== uBuff[6] && crcl== uBuff[7]) //比较寄存器值和CRC校验值
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{
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TXBuff[0] = uBuff[0]; //传感器地址
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TXBuff[1] = uBuff[1]; //功能码
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TXBuff[2] = 0x02; //数据的字节数
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TXBuff[3] = adcValue_factor>>8; //数据的高字节
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TXBuff[4] = adcValue_factor&0x00ff; //数据的低字节
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crcack = CRC16_Modbus( (uint8_t*)(&TXBuff[0]),5); //计算返回数据CRC
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TXBuff[5] = crcack>>8; //返回数据crc高字节
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TXBuff[6] = crcack&0x00ff; //crc低字节
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send_ack(7+2);
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}
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}
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void MODBUS_06H(void)
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{
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uint8_t i;
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uint16_t data = BEBufToUint16( (uint8_t*)(&uBuff[4])); //要修改的数据
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uint16_t reg = BEBufToUint16( (uint8_t*)(&uBuff[2])); //寄存器地址
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uint16_t crc = CRC16_Modbus( (uint8_t*)(&uBuff[0]),6); //计算CRC
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for( i = 0; i<6; i++)
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{
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TXBuff[i] = uBuff[i];
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}
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TXBuff[6] = crc>>8;
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TXBuff[7] = crc&0x00FF;
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//修改地址
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if(reg == 0x000f && TXBuff[6]== uBuff[6] && TXBuff[7]== uBuff[7]) //比较寄存器值和CRC校验值
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{
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if(data>=1 && data<= 247) //从机地址要大于等于1，小于等于247
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{
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RS485ADDR = data; //更新地址
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__set_PRIMASK(1); /* 关中断 */
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if(write_flash() == 0)
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{
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if(uBuff[0] != 0)
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{
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send_ack(8);
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}
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}
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__set_PRIMASK(0); /* 开中断 */
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}
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else //地址超出范围时的返回值
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{
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TXBuff[4] = 0xFF;
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TXBuff[5] = 0xFF;
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crc = CRC16_Modbus( (uint8_t*)(&uBuff[0]),6); //计算CRC
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TXBuff[6] = crc>>8;
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TXBuff[7] = crc&0x00FF;
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if(uBuff[0] != 0) //广播地址不返回
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{
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send_ack(8);
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}
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}
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}
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//设置PWM波脉宽
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else if(reg == 0x0002 && TXBuff[6]== uBuff[6] && TXBuff[7]== uBuff[7])
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{
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if(data>=1 && data<= 1000) //从机地址要大于等于1，小于等于247
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{
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pwm_pulse = data; //更新地址
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__HAL_TIM_SET_COMPARE(&htim14,TIM_CHANNEL_1,pwm_pulse); //设置脉宽
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__set_PRIMASK(1); /* 关中断 */
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if(write_flash() == 0)
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{
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send_ack(8);
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}
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__set_PRIMASK(0); /* 开中断 */
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}
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}
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//设置数系数
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else if(reg == 0x0003 && TXBuff[6]== uBuff[6] && TXBuff[7]== uBuff[7])
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{
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if(data>=1 && data<= 3300) //数据大于1小于3300
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{
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adcValue_factor = data*10/adc_max;
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if(data == 1)adcValue_factor = 10;
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__set_PRIMASK(1); /* 关中断 */
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if(write_flash() == 0)
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{
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send_ack(8);
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}
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__set_PRIMASK(0); /* 开中断 */
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}
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}
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memset(uBuff, 0, sizeof(uBuff)); // 清空
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}
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void send_ack(uint8_t a)
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{
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HAL_GPIO_WritePin(TX485_PN_GPIO_Port, TX485_PN_Pin, GPIO_PIN_SET);//使能485芯片发送
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HAL_UART_Transmit_DMA(&huart1, TXBuff, a);
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while(HAL_DMA_GetState(&hdma_usart1_tx) != HAL_DMA_STATE_READY);
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HAL_GPIO_WritePin(TX485_PN_GPIO_Port, TX485_PN_Pin, GPIO_PIN_RESET);//使能485芯片接收
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}
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uint8_t write_flash(void)
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{
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FLASH_EraseInitTypeDef EraseInitType;
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uint32_t PageError;
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uint8_t a[8] = {0};
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//stm32f030F4P6: flash 16k,1k一页，共16页
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EraseInitType.TypeErase = FLASH_TYPEERASE_PAGES; //页擦书
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EraseInitType.PageAddress = FLASH485_ADDR; //擦除页地址
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EraseInitType.NbPages = 1; //擦除数量
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HAL_FLASH_Unlock(); //解锁
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if(HAL_FLASHEx_Erase(&EraseInitType, &PageError) != HAL_OK) //擦除
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{
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return 1;
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}
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a[0] = RS485ADDR&0xFF; //地址
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a[1] = RS485ADDR>>8;
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a[2] = pwm_pulse&0xFF; //占空比
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a[3] = pwm_pulse>>8;
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a[4] = adcValue_factor&0xFF; //数据修正的比例系数
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a[5] = adcValue_factor>>8;
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uint64_t *b = (uint64_t*)a;
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if(HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD, FLASH485_ADDR, *b) != HAL_OK)
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{
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return 3 ;
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}
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HAL_FLASH_Lock();
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return 0;
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}
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//判断极性
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void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
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{
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// GPIO_PinState = HAL_GPIO_ReadPin(coderA_GPIO_Port, coderA_Pin);
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GPIO_PinState PH2_value = HAL_GPIO_ReadPin(PH2_GPIO_Port, PH2_Pin);
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static uint8_t count = 0,polaNumber =0;
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if(GPIO_Pin == PH1_Pin)
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{
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if(PH2_value==GPIO_PIN_SET)
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{
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polaNumber ++;
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}
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count++;
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if(count>5)
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{
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if(polaNumber>=3)polarity=1;
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else{polarity = -1;}
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count =0;
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polaNumber =0;
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}
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}
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}
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