eView触摸屏+51单片机Modbus通信
本帖最后由 gzhmcu 于 2012-11-9 23:24 编辑触摸屏不传了,大家都懂!
//在触摸屏上作个位开关,单片机系统用LED指示
//在弹片机的硬件系统中用拨码开关来模拟数据输入,在EVIEW上显示
//本程序实现位的读写和字的读写,为一对一通讯,EVIEW为主机
#include<reg52.h>
#include<absacc.h>
#include<intrins.h>
#include<ctype.h>
/* 这些句集定义简单的数据类型 */
#define uchar unsigned char
#define ulint unsigned long
#define uintunsigned int
sbit SCLK_AD9835= P1^0;
sbit SDATA_AD9835 = P1^1;
sbit FSYNC_AD9835 = P1^2;
union{
unsigned long l_Data;
unsigned char byt_Data;
}F_Reg0, F_Reg1;
unsigned longF_V alue,Ftemp;
void Write_AD9835( unsigned char Write_Address, unsigned char Write_Data );
void Fmain( void );
/* 这些句集为 Mudbus 功能码 */
#define ReadCoilSta 0x01 // 0X read coil function 读取线圈状态 取得一组逻辑线圈的当前状态
#define ForceSingleCoil 0x05 // 0X force single coil function 强置单线圈 强置一个逻辑线圈的通断状态
#define ReadHoldReg 0x03 // 4X read hold register 读取输入寄存器 在一个或多个输入寄存器中取得当前的二进制值
#define PresetMulReg 0x10 // 4X write multi register 预置多寄存器 把具体的二进制值装入一串连续的保持寄存器
/*这些句集描述 communiction 信息的索引从开始到结束*/
#define CommIndexSlaveID 0 // macro for slave ID
#define CommIndexFunction 1 // macro for function code
#define CommIndexStartAdrHi 2// macro for data high adr
#define CommIndexStartAdrLo 3// macro for data low adr
#define CommIndexNoPointHi 4 // macro for high quantity datas
#define CommIndexNoPointLo 5 // macro for low quantity datas
/* These macro describe recieve message lenght of different function code */
/* But not include data lenght ,the data is master write to slave */
/* because we don't know the data lenght prior, it depend on ComBuf value */
#define ReadCoilStaIndexEnd 7 // 0~7,0x01,0X
#define ForceSingleCoilIndexEnd 7 // 0~7,0x05,0X
#define ReadHoldRegIndexEnd 7 // 0~7,0x03,4X
#define PresetMulRegIndexEnd 8 // 0~8,0x10,4X
/* these macro describe send or recieve allowed */
#define SEND 1 // send allowed
#define RECIEVE 0 // recieve allowed
#define SlaveID 0x01 //本机ID
#define SendRecieveDelay 50 //超时时间
#define MaxDataLen 30// preset CommBuf array Max lenght
#define MaxRegLen 20 // preset SlaveOutputBuf Max lenght
/* variable for modbus is following */
bit dataRecFinishF;//接收完成标志 1:完成 0:未完成
uchardataCommIndex;
uchardataCommIndexEnd;
ucharidata CommBuf; //CommBuf
ucharidata SlaveOutputBuf; // Hight 8 bit of word is front,Low 8 bit is back
ucharidata SlaveInputBuf={1,2,3,6,5,4,7};//在modbus中两个8位为一个16位数传回主机
/* exp data define */
#define SlaveAdr XBYTE
sbit LED0=P1^0;
uchar idata ForceCoilBuf;
uchar count=0;
uchar forceval=0x00;
//bit forcesendF=0;
uchar Rdhgaddr=0;
uchar Rdhgcount=0;
uchar Pmraddr=0;
uchar Pmrcount=0;
uchar FoCoAddr=0;
uchar FoCoVal=0;
uchar RdcAddr=0;
uchar RdcByte=0;
/* Table Of CRC Values for high-order byte */
uchar codeauchCRCHi[] = {
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
} ;
/* Table of CRC values for low-order byte */
uchar code 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
} ;
uint crc16(uchar *puchMsg,uchar usDataLen) // puchMsg message to calculate CRC upon
{ // usDataLen quantity of bytes in message
uchar uchCRCHi = 0xFF ;// high byte of CRC initialized
uchar uchCRCLo = 0xFF ;// low byte of CRC initialized
uintuIndex; // will index into CRC lookup table
while (usDataLen--) // Pass through message buffer
{
uIndex = uchCRCHi ^ *puchMsg++ ; // calculate the CRC
uchCRCHi = uchCRCLo ^ auchCRCHi ;
uchCRCLo = auchCRCLo ;
}
return (((uint)(uchCRCLo) << 8) | uchCRCHi) ;
}
/*------------- init code is following ----------------*/
void initSFR(void) //计时器初始化
{
TH1=0xfa;
TL1=0xfa; // botelv set 9600 bps/s
TMOD=0x21; // T1 8bit timer for uart band rate, T0 16bit timer
PCON=PCON | 0x80; // band rate is 2 times
SCON=0x50; // uart mode is 01,start bit + 8 bit data +stop bit : peer to peer communication
PS=1; // uart intrrupt is hightest
TR1=1; // start T1
ES=1; // serially interrupt allow
EA=1; // chief interrupt allow
}
void initvar(void)
{
uchar i;
for (i=0;i<=250;i++)
_nop_();
T0=RECIEVE;
RecFinishF=0;
CommIndex=0;
CommIndexEnd=0xff;// First enlarge recieve lenght
for (i=0;i<MaxRegLen;i++)
SlaveOutputBuf=SlaveAdr;
}
void init(void)
{
initSFR();
initvar();
}
void AnalyzeRecieve(void)
{
uint crc16tem;
uchar i,j,temp,k;
if (CommBuf==SlaveID)// The slave ID is matched ;SlaveID=0x01,CommBuf
{
crc16tem=crc16(CommBuf,CommIndex-1); // calculate CRC check, erase two CRC byte
if (crc16tem==(((uint)(CommBuf) << 8) | CommBuf))
{ // crc16 check is OK
switch (CommBuf)
{
case ReadCoilSta:
CommBuf=SlaveID; // 0
CommBuf=ReadCoilSta; // 1
CommBuf=(CommBuf / 0x08);// 0x16 bit
RdcAddr=CommBuf;
RdcByte=CommBuf;
for (i=0;i<RdcByte;i++)// sim inputval for test
k=RdcByte*8+RdcAddr+8;
{for(j=k;j>k-8;j--)
if(j<k)
temp<<=1;
temp=temp+ForceCoilBuf;
//FoCoAddr++;
SlaveOutputBuf=temp;
}
i=CommBuf+3;
for(CommIndex=3;CommIndex<i;CommIndex++) // send data Reg to Master
CommBuf=SlaveOutputBuf; // hight 8 bit is first send
crc16tem=crc16(CommBuf,CommIndex); // then send low 8 bit data
CommBuf=(uchar)(crc16tem & 0x00ff);// send crccheck low 8 bit is front
CommBuf=(uchar)(crc16tem>>8); // then send hight 8 bit
CommIndexEnd=CommIndex;
CommIndex=0;
SBUF=CommBuf;
break;
case ForceSingleCoil:
FoCoAddr=CommBuf;
FoCoVal=CommBuf;
if (FoCoVal==0xff)
ForceCoilBuf=1;
else
ForceCoilBuf=0;
CommBuf=SlaveID; // 0
CommBuf=ForceSingleCoil; // 1
CommIndex=2;
CommBuf=CommBuf; // 2
CommBuf=CommBuf; // 3
CommBuf=CommBuf;// 4
CommBuf=CommBuf;// 5
crc16tem=crc16(CommBuf,CommIndex); // then send low 8 bit data
CommBuf=(uchar)(crc16tem & 0x00ff); // send crccheck low 8 bit is front
CommBuf=(uchar)(crc16tem>>8); // then send hight 8 bit
CommIndexEnd=CommIndex;
CommIndex=0;
SBUF=CommBuf;
break;
case ReadHoldReg:
CommBuf=SlaveID; // 0
CommBuf=ReadHoldReg; // 1
CommBuf=CommBuf*2;// 2 Byte Count
Rdhgcount=CommBuf;
Rdhgaddr=CommBuf;
for (i=0;i<Rdhgcount;i++)// sim inputval for test
{
SlaveOutputBuf=SlaveInputBuf;
Rdhgaddr++;
}
j=CommBuf+3;
for(CommIndex=3;CommIndex<j;CommIndex++) // send data Reg to Master
CommBuf=SlaveOutputBuf; // hight 8 bit is first send
crc16tem=crc16(CommBuf,CommIndex); // then send low 8 bit data
CommBuf=(uchar)(crc16tem & 0x00ff); // send crccheck low 8 bit is front
CommBuf=(uchar)(crc16tem>>8); // then send hight 8 bit
CommIndexEnd=CommIndex;
CommIndex=0;
SBUF=CommBuf;
break;
case PresetMulReg:
Pmraddr=CommBuf;
Pmrcount=CommBuf*2;
// j=CommBuf*2;
for (i=0;i<Pmrcount;i++)
{
SlaveInputBuf=CommBuf;// get data that master send start 7th byte
Pmraddr++;
}
CommBuf=SlaveID; // 0
CommBuf=PresetMulReg; // 1
CommIndex=2;
CommBuf=CommBuf; // 2
CommBuf=CommBuf; // 3
CommBuf=CommBuf;// 4
CommBuf=CommBuf;// 5
crc16tem=crc16(CommBuf,CommIndex); // then send low 8 bit data
CommBuf=(uchar)(crc16tem & 0x00ff); // send crccheck low 8 bit is front
CommBuf=(uchar)(crc16tem>>8); // then send hight 8 bit
CommIndexEnd=CommIndex;
CommIndex=0;
SBUF=CommBuf;
break;
default:
for (i=0;i<=80;i++)// delay // error recieve again
_nop_();
CommIndex=0;
T0=RECIEVE;
break;
}
}
else
{
for (i=0;i<=80;i++)// delay
_nop_();
CommIndex=0;
T0=RECIEVE;
}
}
}
/*------------- intr code is following ----------------*/
void slavecomm(void) interrupt 4 using 2
{
uint i;
ES=0;
if(TI)
{
TI=0;
if (CommIndex<=CommIndexEnd)
{
SBUF=CommBuf;
}
else
{
// if (forcesendF)
// _nop_();
for (i=0;i<=SendRecieveDelay;i++)// delay
_nop_();
CommIndex=0;
T0=RECIEVE;
}
}
if(RI)
{
RI=0;
if (CommIndex<CommIndexEnd)//CommIndex less than recieve lenght
{
CommBuf=SBUF;
if (CommIndex==CommIndexFunction)
{
switch (CommBuf)
{
case ReadCoilSta:
CommIndexEnd=7;
break;
case ForceSingleCoil:
CommIndexEnd=8;
break;
case ReadHoldReg:
CommIndexEnd=ReadHoldRegIndexEnd;
break;
case PresetMulReg:
CommIndexEnd=10 ;
break;
default:
break;
}
}
CommIndex++;
}
else// recieve finishedCommIndex==CommIndexEnd//超时
{
CommBuf=SBUF;
RecFinishF=1;
for (i=0;i<=SendRecieveDelay;i++)// delay
_nop_();
T0=SEND;
}
}
ES=1;
}
/*------------------ main code following -----------------*/
void main(void)
{
uint data i;
init();
for(i=0;i<30;i++)
{CommBuf=0x00;//对缓冲区清零
}
while(1)
{
for(i=0;i<=9;i++)
_nop_();
if (RecFinishF)
{
AnalyzeRecieve();
RecFinishF=0;
Ftemp=SlaveInputBuf<<8;
Ftemp=Ftemp+SlaveInputBuf;
// if(F_Value!=Ftemp)
// Fmain();
//while(1);
}
}
}
/*--对AD9835最基本的写操作函数--*/
void Write_AD9835( unsigned char Write_Address, unsigned char Write_Data ){
unsigned char i;
FSYNC_AD9835 = 1;
SCLK_AD9835 = 1;
FSYNC_AD9835 = 0;
for( i = 0; i < 8; i++ ){
if( (Write_Address & 0x80) == 0x80 ){ SDATA_AD9835 = 1; }
else { SDATA_AD9835 = 0; }
SCLK_AD9835 = 1;
SCLK_AD9835 = 0;
Write_Address <<= 1;
}
for( i = 0; i < 8; i++ ){
if( (Write_Data & 0x80) == 0x80 ){ SDATA_AD9835 = 1; }
else { SDATA_AD9835 = 0; }
SCLK_AD9835 = 1;
SCLK_AD9835 = 0;
Write_Data <<= 1;
}
FSYNC_AD9835 = 1;
SDATA_AD9835 = 0;
SCLK_AD9835 = 1;
}
/****************************************************************************************/
/*--主控函数--*/
void Fmain( void ){
unsigned long ahal;
F_Value = Ftemp;
FSYNC_AD9835 = 1;
SCLK_AD9835 = 1;
Write_AD9835( 0xF8, 0x00 ); Write_AD9835( 0x80,0x00 );
ahal = (long)((float)F_Value*107.374182375);// 85.8993459);
F_Reg0.byt_Data=ahal& 0x000000FF;
F_Reg0.byt_Data=(ahal& 0x0000FF00)>> 8;
F_Reg0.byt_Data=(ahal& 0x00FF0000)>>16;
F_Reg0.byt_Data=(ahal& 0xFF000000)>>24;
Write_AD9835( 0x33, F_Reg0.byt_Data ); Write_AD9835( 0x22, F_Reg0.byt_Data );
Write_AD9835( 0x31, F_Reg0.byt_Data ); Write_AD9835( 0x20, F_Reg0.byt_Data );
Write_AD9835( 0x37, F_Reg0.byt_Data ); Write_AD9835( 0x26, F_Reg0.byt_Data );
Write_AD9835( 0x35, F_Reg0.byt_Data ); Write_AD9835( 0x24, F_Reg0.byt_Data );
Write_AD9835( 0x19, 0x00 ); Write_AD9835( 0x08, 0x00 );
Write_AD9835( 0x1B, 0x00 ); Write_AD9835( 0x0A, 0x00 );
Write_AD9835( 0x1D, 0x00 ); Write_AD9835( 0x0C, 0x50 );
Write_AD9835( 0x1F, 0x00 ); Write_AD9835( 0x0E, 0x00 );
Write_AD9835( 0xC0, 0x00 );
}
{:lol:}不错,顶一个 好资料,谢谢!
正需要!顶一个! 谢谢楼主分享,最近一直在找这方面资料 {:sweat:} 屏,不懂啊,麻烦lz上传,,
,听说 eView 步科出了款399元的 7寸HMI市场洗牌啊,,,,{:lol:} jetli 发表于 2013-8-20 20:51 static/image/common/back.gif
屏,不懂啊,麻烦lz上传,,
,听说 eView 步科出了款399元的 7寸HMI市场洗牌啊,,, ...
{:lol:} ,楼上的消息不错,刚才某宝搜索了下,确实如此还包邮 触摸屏不懂呀,能不能传上来呀! xxfx谢谢分享!! LZ您好,请教你eView触摸屏能自己定义通信协议吗?Modbus通信也太复杂了,关键是费RAM,51只有128个直接寻址RAM,你单测试这个Modbus通信就用了100多个RAM该叫51怎么工作呀 GZLJZ 发表于 2013-8-22 10:12 static/image/common/back.gif
LZ您好,请教你eView触摸屏能自己定义通信协议吗?Modbus通信也太复杂了,关键是费RAM,51只有128个直接寻址 ...
有一种简单的协议,不过不用定义了,他们定义好了{:smile:} jswd0810 发表于 2013-8-25 20:16 static/image/common/back.gif
还没有用过modbus的协议,学习了,谢谢楼主共享!
{:handshake:} {:handshake:} 楼主,最近我在用eview的ET100用起来感觉好费劲,被各种地址高糊涂了,3X 4X地址哪里设置都没找到,请问你用的是那个型号 楼主,在HMI软件中,PLC选择什么类型,Modbus RTU Slave? 花花世界大水牛 发表于 2014-1-2 16:29
楼主,在HMI软件中,PLC选择什么类型,Modbus RTU Slave?
如果HMI没有标准Modbus,那么您就选莫迪康modbus rtu gzhmcu 发表于 2014-1-3 08:13
如果HMI没有标准Modbus,那么您就选莫迪康modbus rtu
好的,谢谢。 楼主,你这个51是工作在从模式吧,怎么才能工作在主模式? 不错,赞一个,先下来学习学习!
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