375 lines
8.2 KiB
C
375 lines
8.2 KiB
C
/*
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* user.c
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*
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* Created on: 2023年8月3日
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* Author: wyf
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*/
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#include "user.h"
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volatile uint8_t usart_count = 0; //串口接收数据个数
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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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volatile int8_t polarity = 1; //电场极性
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volatile uint8_t motor_state = 1; //电机状态,1为正常, 0不正常
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volatile uint16_t RS485ADDR = 0; //485地址
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uint16_t RegularConvData_Tab[ADCBUFF_LEN] = {0}; //ADC采集原始数据
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volatile int16_t adc_max = 0; //最终峰峰值
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volatile uint16_t pwm_pulse = 0; //pwm波脉宽
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volatile uint16_t motor_runtime =0; //电机运行时间
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uint8_t tempe = 0,humidness = 0; //温度湿度
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uint16_t airpress = 0; //气压计
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/*1:传感器数据 2:投退状态 3：电机状态
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* 4：PWM波占空比 5：传感器缩放系数 6：传感器加减系数
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* 7：电机运行时间 8:设置波特率 9:待定
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*/
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int16_t user_register[10] = {0}; //寄存器值
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void user_init(void)
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{
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bsp_InitTimer();
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__HAL_UART_ENABLE_IT(&huart1,UART_IT_IDLE);
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__HAL_UART_CLEAR_IT(&huart1,UART_CLEAR_IDLEF|UART_CLEAR_TCF);
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}
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//求adc波形的峰峰值
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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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static int32_t adc1_max = 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++>=24)
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{
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adc1_max = adc1_max/25*3300/4095;
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adc_max = polarity*adc1_max;
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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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//处理请求
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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])
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{
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case 0x03: //读传感器数据
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MODBUS_03H();
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break;
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case 0x06:
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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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else if((uint16_t)uBuff[0] == 0 && usart_count== 8)
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{
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switch(uBuff[1])
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{
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case 0x06:
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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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}
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/************************************************************
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* Name: CRC-16/MODBUS x16+x15+x2+1
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* Poly: 0x8005
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* Init: 0xFFFF
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* Refin: True
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* Refout: True
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* Xorout: 0x0000
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* Note:
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**********************************************************/
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uint16_t crc16_modbus(uint8_t *data, uint16_t length)
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{
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uint8_t i;
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uint16_t crc = 0xffff; // Initial value
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while(length--)
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{
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crc ^= *data++; // crc ^= *data; data++;
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for (i = 0; i < 8; ++i)
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{
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if (crc & 1)
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crc = (crc >> 1) ^ 0xA001; // 0xA001 = reverse 0x8005
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else
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crc = (crc >> 1);
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}
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}
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return crc;
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}
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//03指令，读取传感器数据
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void MODBUS_03H(void)
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{
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//接收到的数据帧
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//485地址 功能位 寄存器地址 寄存器个数 crc低位 crc高位
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uint8_t crch,crcl;
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uint16_t crcack;
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uint16_t addr = (uint16_t)uBuff[2]<<8 | uBuff[3]; //寄存器地址
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uint16_t number = (uint16_t)uBuff[4]<<8 | uBuff[5]; //寄存器数量
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uint16_t crc = crc16_modbus(uBuff,6); //计算CRC
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crch = crc>>8;
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crcl = crc&0x00FF;
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user_register[1] = adc_max;
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user_register[2] = motor_state;
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// user_register[3] = motor_state;
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// user_register[4] = pwm_pulse;
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// user_register[5] = adcValue_factor;
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// user_register[6] = adcValue_addnum;
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// user_register[7] = motor_runtime;
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// user_register[8] = baud_rate;
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// user_register[9] = (humidness<<8)|tempe;
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if( (addr+number) <= 3 && crcl == uBuff[6] && crch == uBuff[7])
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{
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uint8_t cnt = 0;
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TXBuff[cnt++] = uBuff[0];
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TXBuff[cnt++] = uBuff[1];
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TXBuff[cnt++] = number*2; //数据个数，单位/字节
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for(uint8_t i =0;i<number;i++)
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{
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TXBuff[cnt++] = user_register[addr+i] >>8;
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TXBuff[cnt++] = user_register[addr+i] & 0xFF;
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}
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crcack = crc16_modbus(TXBuff,cnt);
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TXBuff[cnt++] = crcack & 0xff;
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TXBuff[cnt++] = crcack >>8;
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send_ack(cnt);
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}
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if(addr == 0x00FF && number == 0x0001 && crcl== uBuff[6] && crch== uBuff[7]) //比较寄存器值和CRC校验值
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{
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char string[]="DCE-2302-V5.0_HAL";
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uint8_t i;
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for(i=0;i<strlen(string);i++)
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{
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TXBuff[i] = string[i];
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}
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send_ack(strlen(string)); //打印版本号
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}
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}
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//06指令，设置寄存器
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void MODBUS_06H(void)
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{
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int16_t data = ((int16_t)uBuff[4]<<8)|uBuff[5]; //要修改的数据
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uint16_t reg = ((int16_t)uBuff[2]<<8)|uBuff[3]; //寄存器地址
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uint16_t crc = crc16_modbus( uBuff,6); //计算CRC
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for(uint8_t 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&0xff;
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TXBuff[7] = crc>>8;
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//修改地址
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if(reg == 0x000f && TXBuff[6]== uBuff[6] && TXBuff[7]== uBuff[7])
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{
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if(data>=1 && data <= 247)
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{
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uint8_t temp = RS485ADDR;
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RS485ADDR = data;
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if(write_flash() == 0)
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{
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if(uBuff[1] != 0)
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{
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send_ack(8);
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}
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}
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else
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{
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RS485ADDR = temp;
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}
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}
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else {
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TXBuff[4] = 0xFF;
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TXBuff[5] = 0xFF;
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crc = crc16_modbus( uBuff,6); //计算CRC //计算CRC
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TXBuff[6] = crc&0xff;
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TXBuff[7] = crc>>8;
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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波占空比
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else if(reg == 0x0004 && TXBuff[6]== uBuff[6] && TXBuff[7]== uBuff[7])
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{
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if(data>=0 && 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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int16_t temp = pwm_pulse;
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pwm_pulse = data; //更新地址
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if(write_flash() == 0)
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{
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send_ack(8);
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__HAL_TIM_SET_COMPARE(&htim14,TIM_CHANNEL_1,pwm_pulse); //设置脉宽
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}
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else
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{
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pwm_pulse = temp;
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}
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}
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}
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}
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uint8_t writeflash(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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//stm32g030F4P6: flash 32k,2k一页，共16页
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EraseInitType.TypeErase = FLASH_TYPEERASE_PAGES; //页擦页
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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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//stm32是小端模式，低位在前
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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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// a[6] = adcValue_addnum & 0xFF; //加减系数
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// a[7] = adcValue_addnum >>8;
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// a[8] = baud_rate & 0xFF; //加减系数
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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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HAL_FLASH_Lock();
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return 1;
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}
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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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HAL_FLASH_Lock();
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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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//把参数写到flash中
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uint8_t write_flash(void)
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{
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uint8_t a =0;
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DISABLE_INT();
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a= writeflash();
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ENABLE_INT();
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return a;
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}
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//发送数据，参数：数据长度；数据放在全局变量txbuff中
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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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delay_ms(5);
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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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//外部中断回调函数，
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void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
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{
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if(GPIO_Pin == PH1_Pin)
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{
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//判断电机运动状态
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static uint32_t last_tick = 0;
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uint32_t a = HAL_GetTick();
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if( (a -last_tick) < 10)
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{
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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
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if(motor_state == 1)
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{
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bsp_StartAutoTimer(2,500); //led2闪烁
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motor_state = 0;
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}
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}
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last_tick = a;
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//判断极性
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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(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
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{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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