/* * user.c * * Created on: 2023年8月3日 * Author: wyf */ #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 volatile uint8_t motor_state = 1; //电机状态,1为正常, 0不正常 volatile uint16_t RS485ADDR = 0; //485地址 uint16_t RegularConvData_Tab[ADCBUFF_LEN] = {0}; //ADC采集原始数据 volatile int16_t adc_max = 0; //最终峰峰值 volatile uint16_t pwm_pulse = 0; //pwm波脉宽 volatile uint16_t motor_runtime =0; //电机运行时间 uint8_t tempe = 0,humidness = 0; //温度湿度 uint16_t airpress = 0; //气压计 /*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:待定 */ int16_t user_register[10] = {0}; //寄存器值 void user_init(void) { bsp_InitTimer(); __HAL_UART_ENABLE_IT(&huart1,UART_IT_IDLE); __HAL_UART_CLEAR_IT(&huart1,UART_CLEAR_IDLEF|UART_CLEAR_TCF); } //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 int32_t adc1_max = 0; max = RegularConvData_Tab[0]; min = RegularConvData_Tab[0]; for(i = 1;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++>=24) { adc1_max = adc1_max/25*3300/4095; adc_max = polarity*adc1_max; adc1_max = 0; number = 0; } } //处理请求 void Usart_Receive(void) { if( (uint16_t)uBuff[0] == RS485ADDR && usart_count == 8) { switch(uBuff[1]) { case 0x03: //读传感器数据 MODBUS_03H(); break; case 0x06: MODBUS_06H(); break; default:break; } } else if((uint16_t)uBuff[0] == 0 && usart_count== 8) { switch(uBuff[1]) { case 0x06: MODBUS_06H(); 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; } //03指令，读取传感器数据 void MODBUS_03H(void) { //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] = adc_max; user_register[2] = motor_state; // user_register[3] = motor_state; // user_register[4] = pwm_pulse; // user_register[5] = adcValue_factor; // user_register[6] = adcValue_addnum; // user_register[7] = motor_runtime; // user_register[8] = baud_rate; // user_register[9] = (humidness<<8)|tempe; if( (addr+number) <= 3 && 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>8; TXBuff[cnt++] = user_register[addr+i] & 0xFF; } crcack = crc16_modbus(TXBuff,cnt); TXBuff[cnt++] = crcack & 0xff; TXBuff[cnt++] = crcack >>8; send_ack(cnt); } if(addr == 0x00FF && number == 0x0001 && crcl== uBuff[6] && crch== uBuff[7]) //比较寄存器值和CRC校验值 { char string[]="DCE-2302-V5.0_HAL"; uint8_t i; for(i=0;i>8; //修改地址 if(reg == 0x000f && TXBuff[6]== uBuff[6] && TXBuff[7]== uBuff[7]) { if(data>=1 && data <= 247) { uint8_t temp = RS485ADDR; RS485ADDR = data; if(write_flash() == 0) { if(uBuff[1] != 0) { send_ack(8); } } else { RS485ADDR = temp; } } else { TXBuff[4] = 0xFF; TXBuff[5] = 0xFF; crc = crc16_modbus( uBuff,6); //计算CRC //计算CRC TXBuff[6] = crc&0xff; TXBuff[7] = crc>>8; if(uBuff[0] != 0) //广播地址不返回 { send_ack(8); } } } //设置PWM波占空比 else if(reg == 0x0004 && TXBuff[6]== uBuff[6] && TXBuff[7]== uBuff[7]) { if(data>=0 && data<= 1000) //从机地址要大于等于1，小于等于247 { int16_t temp = pwm_pulse; pwm_pulse = data; //更新地址 if(write_flash() == 0) { send_ack(8); __HAL_TIM_SET_COMPARE(&htim14,TIM_CHANNEL_1,pwm_pulse); //设置脉宽 } else { pwm_pulse = temp; } } } } uint8_t writeflash(void) { FLASH_EraseInitTypeDef EraseInitType; uint32_t PageError; uint8_t a[8] = {0}; //stm32g030F4P6: flash 32k,2k一页，共16页 EraseInitType.TypeErase = FLASH_TYPEERASE_PAGES; //页擦页 EraseInitType.PageAddress = FLASH485_ADDR; //擦除页地址 EraseInitType.NbPages = 1; //擦除数量 //stm32是小端模式，低位在前 a[0] = RS485ADDR&0xFF; //地址 a[1] = RS485ADDR>>8; a[2] = pwm_pulse&0xFF; //占空比 a[3] = pwm_pulse>>8; // a[4] = adcValue_factor&0xFF; //数据修正的比例系数 // a[5] = adcValue_factor>>8; // a[6] = adcValue_addnum & 0xFF; //加减系数 // a[7] = adcValue_addnum >>8; // a[8] = baud_rate & 0xFF; //加减系数 HAL_FLASH_Unlock(); //解锁 if(HAL_FLASHEx_Erase(&EraseInitType, &PageError) != HAL_OK) //擦除 { HAL_FLASH_Lock(); return 1; } uint64_t *b = (uint64_t*)a; if(HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD, FLASH485_ADDR, *b) != HAL_OK) { HAL_FLASH_Lock(); return 3 ; } HAL_FLASH_Lock(); return 0; } //把参数写到flash中 uint8_t write_flash(void) { uint8_t a =0; DISABLE_INT(); a= writeflash(); ENABLE_INT(); return a; } //发送数据，参数：数据长度；数据放在全局变量txbuff中 void send_ack(uint8_t a) { HAL_GPIO_WritePin(TX485_PN_GPIO_Port, TX485_PN_Pin, GPIO_PIN_SET);//使能485芯片发送 HAL_UART_Transmit_DMA(&huart1, TXBuff, a); while(HAL_DMA_GetState(&hdma_usart1_tx) != HAL_DMA_STATE_READY); delay_ms(5); HAL_GPIO_WritePin(TX485_PN_GPIO_Port, TX485_PN_Pin, GPIO_PIN_RESET);//使能485芯片接收 } //外部中断回调函数， void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) { if(GPIO_Pin == PH1_Pin) { //判断电机运动状态 static uint32_t last_tick = 0; uint32_t a = HAL_GetTick(); if( (a -last_tick) < 10) { 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(motor_state == 1) { bsp_StartAutoTimer(2,500); //led2闪烁 motor_state = 0; } } last_tick = a; //判断极性 GPIO_PinState PH2_value = HAL_GPIO_ReadPin(PH2_GPIO_Port, PH2_Pin); static uint8_t count = 0,polaNumber =0; if(PH2_value==GPIO_PIN_SET) { polaNumber ++; } count++; if(count>5) { if(polaNumber>=3)polarity=-1; else {polarity = 1;} count =0; polaNumber =0; } } }