ModBusTest.rar_ModbusTest_STC_MODBUS_keil modbus_modbus STC_stc

#include "main.h" //字地址 0 - 255 (只取低8位) //位地址 0 - 255 (只取低8位) /* CRC校验高位字节值表 */ const uint8 code ucCRCHig[] = { 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40 }; /* CRC校验低位字节值表*/ const uint8 code ucCRCLow[] = { 0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3, 0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26, 0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F, 0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, 0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5, 0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0, 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C, 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C, 0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83, 0x41, 0x81, 0x80, 0x40 }; uint8 ucTesCoi; //用于测试,位地址1 uint16 uiTesReg; //用于测试,字址址16 uint8 ucLocAdd = 1; //STC单片机下载板的地址,即从设备地址为1 uint8 ucSenCou; //发送的字节个数 uint8 ucRecCou; //接收的字节个数 uint8 ucSenPos; //发送位置,就是发送的数据在数据流中的位置，即位置下标 /**************************************************************************** 函数名:uint16 CRC16Che(uint8 *ucPuchMsg, uint16 uiDatLen) 说明:对给定的串数据生成CRC16校验码 输入:ucMsg:串数据首地址；uiDatLen：数据的长度 输出:数据CRC16校验生成的校验码，长度16位 编写/日期: 修改/日期: *****************************************************************************/ uint16 CRC16Che(uint8 *ucMsg, uint16 uiDatLen) { uint8 ucCRCH = 0xFF; // 高CRC字节初始化 uint8 ucCRCL = 0xFF; // 低CRC字节初始化 uint32 ulIndex ; // CRC循环中的索引 while (uiDatLen--) // 传输消息缓冲区 { ulIndex = ucCRCH ^ *ucMsg++; /* 计算CRC */ ucCRCH = ucCRCL ^ ucCRCHig[ulIndex]; ucCRCL = ucCRCLow[ulIndex]; } return (ucCRCH << 8 | ucCRCL); } /**************************************************************** 函数名:void BegSen(void) 说明: 输入: 输出: 编写/日期: 修改/日期: *****************************************************************/ void BegSen(void) { ucSenPos = 0; if(ucSenCou > 1) ucSenCou--; ACC = ucSenBuf[0]; SBUF = ucSenBuf[0]; } /**************************************************************** 函数名:void ReaCoi(void) 说明:读取线圈状态 输入:空 输出:空 编写/日期: 修改/日期: *****************************************************************/ void ReaCoi(void) { uint8 ucAdd; //起始寄存器地址 uint8 ucTemAdd; //寄存器过渡地址 uint8 ucBytCou; //读取的线圈所占字节数 uint8 ucBitCou; //读取的线圈所占位数 uint16 uiCRCDat; //CRC校验数据，共16位 uint8 ucPos; //返回线圈状态数据所在数据流中的位置 uint8 ucInsCyc,ucOutCyc; uint16 uiTemDat; //暂存读取的线圈状态 uint8 ucExi = 0; //判断所需的线圈状态是否已经读完 //ucAdd = (ucRecBuf[2]<<8) + ucRecBuf[3]; //ucTemAdd = ucAdd & 0xfff; ucAdd = ucRecBuf[3]; ucTemAdd = ucAdd; //ucBitCou = (ucRecBuf[4]<<8) + ucRecBuf[5]; //读取的位个数 ucBitCou = ucRecBuf[5]; ucBytCou = ucBitCou / 8; //字节个数 if(ucBitCou%8 != 0) ucBytCou++; for(ucOutCyc=0;ucOutCyc<ucBytCou;ucOutCyc++) {//字节位置 ucPos = ucOutCyc + 3; ucSenBuf[ucPos] = 0; for(ucInsCyc=0;ucInsCyc<8;ucInsCyc++) { GetCoiVal(ucTemAdd,&uiTemDat); ucSenBuf[ucPos] |= uiTemDat << ucInsCyc; ucTemAdd++; if(ucTemAdd >= ucAdd+ucBitCou) { //读完 ucExi = 1; break; } } if(ucExi == 1) break; } ucSenBuf[0] = ucLocAdd; ucSenBuf[1] = 0x01; ucSenBuf[2] = ucBytCou; ucBytCou += 3; uiCRCDat = CRC16Che(ucSenBuf,ucBytCou); ucSenBuf[ucBytCou] = uiCRCDat >> 8; ucBytCou++; ucSenBuf[ucBytCou] = uiCRCDat & 0xFF; ucSenCou = ucBytCou + 1; BegSen(); } /**************************************************************** 函数名:void ReaRegs(void) 说明:读取寄存器状态 输入:空 输出:空 编写/日期: 修改/日期: *****************************************************************/ void ReaRegs(void) { uint8 ucAdd; uint8 ucTemAdd; uint16 uiCRCDat; uint8 ucReaCou; uint8 ucBytCou; uint16 uiCyc; uint16 uiTemDat = 0; //ucAdd = (ucRecBuf[2]<<8) + ucRecBuf[3]; //ucTemAdd = ucAdd & 0xfff; ucAdd = ucRecBuf[3]; ucTemAdd = ucAdd; //ucReaCou = (ucRecBuf[4]<<8) + ucRecBuf[5]; //要读的个数 ucReaCou = ucRecBuf[5]; ucBytCou = ucReaCou * 2; for(uiCyc=0;uiCyc<ucBytCou;uiCyc+=2,ucTemAdd++) { GetRegVal(ucTemAdd,&uiTemDat); ucSenBuf[uiCyc+3] = uiTemDat >> 8; ucSenBuf[uiCyc+4] = uiTemDat & 0xFF; } ucSenBuf[0] = ucLocAdd; ucSenBuf[1] = 3; ucSenBuf[2] = ucBytCou; ucBytCou += 3; uiCRCDat = CRC16Che(ucSenBuf,ucBytCou); ucSenBuf[ucBytCou] = uiCRCDat >> 8; ucBytCou++; ucSenBuf[ucBytCou] = uiCRCDat & 0xFF; ucSenCou = ucBytCou + 1; BegSen(); } /**************************************************************** 函数名:void ForSinCoi(void) 说明: 输入:空 输出:空 编写/日期: 修改/日期: *****************************************************************/ //强置单个线圈 void ForSinCoi(void) { uint8 ucAddr; //需强置线圈的寄存器地址 uint8 ucTemAdd; //需强置线圈的寄存器过渡地址 uint16 ucTemDat; //需强置线圈的状态 uint8 ucOnOff; //接收到的强置数据 uint8 ucCyc; // //ucAddr = (ucRecBuf[2]<<8) + ucRecBuf[3]; //ucTemAdd = ucAddr & 0xfff; ucAddr = ucRecBuf[3]; ucTemAdd = ucAddr; //ucOnOff = (ucRecBuf[4]<<8) + ucRecBuf[5]; u