198 lines
5.1 KiB
C
198 lines
5.1 KiB
C
#include "user.h"
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//串口2为485接口
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volatile uint8_t usart2_count = 0; //串口接收数据个数
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uint8_t Rx2_Buff[BUFF_LEN] = {0}; //串口接收缓冲区
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uint8_t Tx2_Buff[BUFF_LEN] = {0}; //串口发送缓冲区
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uint8_t u2_Buff[BUFF_LEN] = {0}; //用户缓冲区
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//串口3为lora通讯口
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volatile uint8_t usart3_count = 0; //串口接收数据个数
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uint8_t Rx3_Buff[BUFF_LEN] = {0}; //串口接收缓冲区
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uint8_t Tx3_Buff[BUFF_LEN] = {0}; //串口发送缓冲区
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uint8_t u3_Buff[BUFF_LEN] = {0}; //用户缓冲区
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volatile uint8_t usart1_count = 0; //串口接收数据个数
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uint8_t Rx1_Buff[BUFF_LEN] = {0}; //串口接收缓冲区
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uint8_t Tx1_Buff[BUFF_LEN] = {0}; //串口发送缓冲区
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uint8_t u1_Buff[BUFF_LEN] = {0}; //用户缓冲区
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uint8_t ADC_Wavedata[512] ={ 0};
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volatile uint16_t RS485ADDR = 1;
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int16_t user_register[10] ={0};
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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_FLAG(&huart1, UART_FLAG_TC);
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__HAL_UART_CLEAR_IDLEFLAG(&huart1);
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HAL_UART_DMAStop(&huart1);//复位DMA //串口DMA接受
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HAL_UART_Receive_DMA(&huart1,(uint8_t *)Rx1_Buff,sizeof(Rx1_Buff));
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__HAL_UART_ENABLE_IT(&huart3,UART_IT_IDLE);
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__HAL_UART_CLEAR_FLAG(&huart3, UART_FLAG_TC);
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__HAL_UART_CLEAR_IDLEFLAG(&huart3);
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HAL_UART_DMAStop(&huart3);//复位DMA //串口DMA接受
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HAL_UART_Receive_DMA(&huart3,(uint8_t *)Rx3_Buff,sizeof(Rx3_Buff));
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// __HAL_UART_CLEAR_IT(&huart2,UART_CLEAR_IDLEF|UART_CLEAR_TCF);
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}
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void Usart_Receive()
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{
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if( (uint16_t)u3_Buff[0] == RS485ADDR && usart3_count == 8)
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{
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switch(u3_Buff[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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}
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void MODBUS_03H()
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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)u3_Buff[2]<<8 | u3_Buff[3]; //寄存器地址
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uint16_t number = (uint16_t)u3_Buff[4]<<8 | u3_Buff[5]; //寄存器数量
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uint16_t crc = crc16_modbus(u3_Buff,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] = (int16_t)Vol*Kv;
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user_register[2] = (int16_t)IA*Ki;
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if( (addr+number) <= 3 && crcl == u3_Buff[6] && crch == u3_Buff[7])
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{
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uint8_t cnt = 0;
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Tx3_Buff[cnt++] = u3_Buff[0];
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Tx3_Buff[cnt++] = u3_Buff[1];
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Tx3_Buff[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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Tx3_Buff[cnt++] = user_register[addr+i] >>8;
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Tx3_Buff[cnt++] = user_register[addr+i] & 0xFF;
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}
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crcack = crc16_modbus(Tx3_Buff,cnt);
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Tx3_Buff[cnt++] = crcack & 0xff;
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Tx3_Buff[cnt++] = crcack >>8;
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HAL_UART_Transmit_DMA(&huart3,Tx3_Buff,cnt);
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}
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}
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void MODBUS_06H(void)
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{
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int16_t data = ((int16_t)u3_Buff[4]<<8)|u3_Buff[5]; //要修改的数据
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uint16_t reg = ((int16_t)u3_Buff[2]<<8)|u3_Buff[3]; //寄存器地址
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uint16_t crc = crc16_modbus( u3_Buff,6); //计算CRC
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for(uint8_t i = 0; i<6; i++)
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{
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Tx3_Buff[i] = u3_Buff[i];
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}
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Tx3_Buff[6] = crc&0xff;
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Tx3_Buff[7] = crc>>8;
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//修改地址
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if(reg == 0x0001 && Tx3_Buff[6]== u3_Buff[6] && Tx3_Buff[7]== u3_Buff[7])
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{
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Kv = data/Vol;
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HAL_UART_Transmit_DMA(&huart3,Tx3_Buff,8);
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}
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if(reg == 0x0002 && Tx3_Buff[6]== u3_Buff[6] && Tx3_Buff[7]== u3_Buff[7])
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{
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Ki = data/IA;
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HAL_UART_Transmit_DMA(&huart3,Tx3_Buff,8);
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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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void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
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{
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uint16_t tmp16;
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uint8_t tmp8 = 0;
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uint8_t data[5] = {0};
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uint8_t data1[300];
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static uint8_t cnt =0;
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if(GPIO_Pin == IRQ_Pin)
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{
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tmp8 = READ_SPI(WAVE_IF,1);
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sprintf(Tx3_Buff,"WAVE_IF:0x%x",tmp8);
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HAL_UART_Transmit_DMA(&huart3,Tx3_Buff,strlen(Tx3_Buff));
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if(tmp8 & 0x02)
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{
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// SPI_CS_LOW();
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// data[0] = 0xEA;
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// data[1] = 0xAC;
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// data[2] = ~(data[0]+data[1]);
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// HAL_SPI_Transmit(&hspi1,data,3,SPI_TIMEOUT);
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// HAL_SPI_Receive(&hspi1,data1,300,SPI_TIMEOUT);
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// SPI_CS_HIGH();
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cnt++;
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}
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if((tmp8&0x01) == 0 && (tmp8 & 0x02) ==1)
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{
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cnt++;
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SPI_CS_LOW();
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//连续读波性数据
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// data[0] = 0xEA;
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// data[1] = 0xAE;
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// data[2] = 0;
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// data[3] = 0xff;
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// data[4] = ~(data[0]+data[1]+data[2]+data[3]);
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// HAL_SPI_Transmit(&hspi1,data,3,SPI_TIMEOUT);
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// HAL_SPI_Receive(&hspi1,ADC_Wavedata,256,SPI_TIMEOUT);
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// SPI_CS_HIGH();
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}
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}
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tmp16 = READ_SPI(WAVE_IF,1);
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} |