📄 modbus.c
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#include "config.h"
#define READ_COIL 01
#define READ_DI 02
#define READ_HLD_REG 03
#define READ_AI 04
#define SET_COIL 05
#define SET_HLD_REG 06
#define READ_FIFO 24
#define PROTOCOL_EXCEPTION 0x81
#define PROTOCOL_ERR 1
#define FRM_ERR 2
extern unsigned char RecDat[16];
extern unsigned char RecLen;
extern uint8 TureBdTmp;
extern uint16 StartTm;
extern uint16 WindowsFg;
extern uint16 TpumSpeed;
extern float TpumVaccum;
extern float LeakBase;
extern uint8 LeakExp;
extern uint8 CalBase ;
extern uint8 CalExp ;
extern uint8 Volum;
extern uint8 AlarmBase;
extern uint8 AlarmExp;
extern uint8 DecPort;
uint8 EnVacum;
uint8 EnWarnRel;
uint8 ZeroMode; //校零模式
uint8 ZeroDelTm;//校零开始延时时间
uint8 ZeroLevel;//校零等级
//unsigned char CmdBuf[10];
unsigned char X4Dat[65];
unsigned char X3Dat[200];
uint8 X0Dat[5];
unsigned char OutBuf[50];
uint8 SavePar;
unsigned char const auchCRCHi[] = {
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
} ;
unsigned char const auchCRCLo[] = {
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
};
void Delay()
{
unsigned int i;
for(i=10;i>0;i--);
}
unsigned short CRC(unsigned char dat[] , unsigned short usDataLen)
{
unsigned char uchCRCHi = 0xFF ; /* high byte of CRC initialized */
unsigned char uchCRCLo = 0xFF ; /* low byte of CRC initialized */
unsigned uIndex ; /* will index into CRC lookup table */
unsigned char i=0;
while (usDataLen--) /* pass through message buffer */
{
uIndex = uchCRCHi ^ dat[i++] ; /* calculate the CRC */
uchCRCHi = uchCRCLo ^ auchCRCHi[uIndex];
uchCRCLo = auchCRCLo[uIndex] ;
}
return (uchCRCHi << 8 | uchCRCLo) ;
}
void SendX34(unsigned int Add,unsigned int Num1,uint8 Dat[])
{
unsigned char i,Len;
unsigned int CrcTmp;
OutBuf[0]=0x01;
OutBuf[1]=RecDat[1];
OutBuf[2]=Num1*2;
for(i=0;i<Num1*2;i++)
{
//OutBuf[i+3]=Dat[Add*2+i];
//OutBuf[i+4]=Dat[Add*2+i+1] ;
OutBuf[i+3]=Dat[Add*2+i];
}
Len=i+3;
CrcTmp=CRC(OutBuf,Len);
OutBuf[Len+1]=CrcTmp&0x00ff;
OutBuf[Len]=(CrcTmp>>8)&0x00ff;
Delay();
for(i=0;i<Len+2;i++)
{
U1THR =OutBuf[i];
while ((U1LSR & 0x20) == 0); // 等待数据发送完毕
}
Delay();
}
void SendX01(unsigned int Add,unsigned int Num1,uint8 Dat[])
{
unsigned char i,Len;
unsigned int CrcTmp;
OutBuf[0]=0x01;
OutBuf[1]=RecDat[1];
OutBuf[2]=Num1*2;
for(i=0;i<Num1*2;i++)
{
//OutBuf[i+3]=Dat[Add*2+i];
//OutBuf[i+4]=Dat[Add*2+i+1] ;
OutBuf[i+3]=Dat[Add*2+i];
}
Len=i+3;
CrcTmp=CRC(OutBuf,Len);
OutBuf[Len+1]=CrcTmp&0x00ff;
OutBuf[Len]=(CrcTmp>>8)&0x00ff;
Delay();
for(i=0;i<Len+2;i++)
{
U1THR =OutBuf[i];
while ((U1LSR & 0x20) == 0); // 等待数据发送完毕
}
Delay();
}
void SetResp(unsigned int Add,unsigned int Num1)
{
unsigned char i,Len;
unsigned int CrcTmp;
OutBuf[0]=0x01;
OutBuf[1]=RecDat[1];
OutBuf[2]=Add>>8&0x00ff;
OutBuf[3]=Add&0x00ff;
//OutBuf[4]=RecDat[4];
//OutBuf[5]=RecDat[5];
for(i=0;i<Num1*2;i++)
{
//OutBuf[i+4]=X4Dat[Add*2+i];
//OutBuf[i+5]=X4Dat[Add*2+i+1] ;
OutBuf[i+4]=X4Dat[Add*2+i];
}
//i=1;
Len=i+4;
CrcTmp=CRC(OutBuf,Len);
OutBuf[Len+1]=CrcTmp&0x00ff;
OutBuf[Len]=(CrcTmp>>8)&0x00ff;
Delay();
for(i=0;i<Len+2;i++)
{
U1THR =OutBuf[i];
while ((U1LSR & 0x20) == 0); // 等待数据发送完毕
}
Delay();
}
void RespX01(unsigned int Add)
{
unsigned char i,Len;
unsigned int CrcTmp;
OutBuf[0]=0x01;
OutBuf[1]=RecDat[1];
OutBuf[2]=Add>>8&0x00ff;
OutBuf[3]=Add&0x00ff;
OutBuf[4]=RecDat[4];
OutBuf[5]=RecDat[5];
//for(i=0;i<Num1*2;i++)
//{
//OutBuf[i+4]=X4Dat[Add*2+i];
//OutBuf[i+5]=X4Dat[Add*2+i+1] ;
//OutBuf[i+4]=X4Dat[Add*2+i];
//}
//i=1;
Len=6;
CrcTmp=CRC(OutBuf,Len);
OutBuf[Len+1]=CrcTmp&0x00ff;
OutBuf[Len]=(CrcTmp>>8)&0x00ff;
Delay();
for(i=0;i<Len+2;i++)
{
U1THR =OutBuf[i];
while ((U1LSR & 0x20) == 0); // 等待数据发送完毕
}
Delay();
}
void MbusDel(void)
{
uint8 i,CmdAdd,Num,VmExp;
float TmpVcm;
if((RecLen>0)||RecLen>6)
{
for(i=RecLen;i>0;i--)
{
//CmdBuf[i-1]=RecDat[i-1];
}
//CrcRes= CRC(RecDat,RecLen-2);
if ((RecDat[RecLen-2]*256+RecDat[RecLen-1])==CRC(RecDat,RecLen-2) )//Cmd Right
{
if (RecDat[0]==0x1)//设备号为1
{
switch(RecDat[1])
{
case 1:
CmdAdd=RecDat[2]*256+RecDat[3];
Num=(RecDat[4]*256+RecDat[5])/16;
SendX34(CmdAdd,Num,X0Dat);
break;
case 2:
break;
case 3:
//X4Dat[61]=TureBdTmp;
//X4Dat[60]=BdTmp/256;
X4Dat[0]=AlarmBase/256;
X4Dat[1]=AlarmBase;
X4Dat[2]=AlarmExp/256;
X4Dat[3]=AlarmExp;
X4Dat[4]=Volum/256;
X4Dat[5]=Volum;
X4Dat[6]=Unit/256;
X4Dat[7]=Unit%256;
X4Dat[8]=CalBase/256;
X4Dat[9]=CalBase;
X4Dat[10]=CalExp/256;;
X4Dat[11]=CalExp;
X4Dat[12]=DecPort/256;;
X4Dat[13]=DecPort;
X4Dat[16]=VacumUnit/256;
X4Dat[17]=VacumUnit%256;
X4Dat[18]=FltMod/256;
X4Dat[19]=FltMod%256;
X4Dat[20]=ZeroMode/256;
X4Dat[21]=ZeroMode%256;
X4Dat[22]=ZeroLevel/256;
X4Dat[23]=ZeroLevel%256;
X4Dat[24]=ZeroDelTm/256;
X4Dat[25]=ZeroDelTm%256;
X4Dat[26]=RelBase1/256;
X4Dat[27]=RelBase1%256;
X4Dat[28]=RelExp1/256;
X4Dat[29]=RelExp1%256;
X4Dat[30]=RelBase2/256;
X4Dat[31]=RelBase2%256;
X4Dat[32]=RelExp2/256;
X4Dat[33]=RelExp2%256;
X4Dat[34]=EnRel1/256;
X4Dat[35]=EnRel1%256;
X4Dat[36]=EnRel2/256;
X4Dat[37]=EnRel2%256;
X4Dat[38]=RunHour/256;
X4Dat[39]=RunHour%256;
X4Dat[40]=0;
X4Dat[41]=0;
X4Dat[42]=RunMin/256;
X4Dat[43]=RunMin%256;
X4Dat[44]=0;
X4Dat[45]=0;
X4Dat[46]=ErrTimes/256;
X4Dat[47]=ErrTimes%256;
X4Dat[48]=0;
X4Dat[49]=0;
X4Dat[50]=MacFact/256;
X4Dat[51]=MacFact%256;
X4Dat[54]=EnWarnRel/256;
X4Dat[55]=EnWarnRel%256;
X4Dat[58]=AmpSelect/256;
X4Dat[59]=AmpSelect%256;
CmdAdd=RecDat[2]*256+RecDat[3];
Num=RecDat[4]*256+RecDat[5];
SendX34(CmdAdd,Num,X4Dat);
break;
case 4:
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