基于STC12C5A60S2的单片机与欧姆龙触摸屏的通讯讲述.docx
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基于STC12C5A60S2的单片机与欧姆龙触摸屏的通讯讲述.docx
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基于STC12C5A60S2的单片机与欧姆龙触摸屏的通讯讲述
基于STC12C5A60S2的单片机与欧姆龙触摸屏的通讯
备注:
位操作控制&读单片机的IO口,寄存器操作读&写单片机内部的eeprom。
通过实际验证,程序直接可用!
#include
uchardataresvbuf[16];//接收数组
uchardataSendbuf[16];//发送数组
ucharresvCount;//接收字节数
ucharSendCount;//发送字节数
charTimeInterval;//计时数
sbitbit0=P1^0;
sbitbit1=P1^1;
sbitbit2=P1^2;
sbitbit3=P1^3;
sbitbit4=P1^4;
sbitbit5=P1^5;
sbitbit6=P1^6;
sbitbit7=P1^7;
sbitbit8=P4^0;
sbitbit9=P4^1;
sbitbit10=P4^2;
sbitbit11=P4^3;
sbitbit12=P2^4;
sbitbit13=P2^5;
sbitbit14=P2^6;
sbitbit15=P2^7;
voiddelay_ms(unsignedcharms);
voidmodbus_init(void);
voidInit_timer0(void);
#defineD_TIMER02000//选择定时器时间us,注意不要溢出,溢出时编译会报错。
/******************************************/
#defineTimer0_Reload_s((MAIN_Fosc/1000)*D_TIMER0/12000)
#if(Timer0_Reload_s<65536)
#defineTimer0_Reload(65536-Timer0_Reload_s)
#endif
/*========================================================================
//函数:
voiddelay_ms(unsignedcharms)
//描述:
延时函数。
//参数:
ms,要延时的ms数.
//返回:
none.
//版本:
VER1.0
//日期:
2010-12-15
//备注:
//=======================================================================*/
voiddelay_ms(unsignedcharms)
{
unsignedinti;
do{
i=MAIN_Fosc/14000;//14000
while(--i);//14Tperloop
}while(--ms);
}
/*---------------------------------------------------------------------------
函数说明:
从机初始化
---------------------------------------------------------------------------*/
voidmodbus_init(void)
{
Sendbuf[0]=0x01;//本机地址
}
/*---------------------------------------------------------------------------
函数说明:
CRC高位字节值表
---------------------------------------------------------------------------*/
staticunsignedcharcodeauchCRCHi[]={
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
};
/*---------------------------------------------------------------------------
函数说明:
CRC低位字节值表
---------------------------------------------------------------------------*/
staticunsignedcharcodeauchCRCLo[]={
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
};
/*---------------------------------------------------------------------------
调用方式:
unsignedintCRC16(unsignedchar*puchMsg,unsignedintusDataLen)
函数说明:
CRC校验
---------------------------------------------------------------------------*/
unsignedintCRC16(unsignedchar*puchMsg,unsignedintusDataLen)
{
unsignedcharuchCRCHi=0xFF;//高CRC字节初始化
unsignedcharuchCRCLo=0xFF;//低CRC字节初始化
unsigneduIndex;//CRC循环中的索引
while(usDataLen--)//传输消息缓冲区
{
uIndex=uchCRCHi^*puchMsg++;//计算CRC
uchCRCHi=uchCRCLo^auchCRCHi[uIndex];
uchCRCLo=auchCRCLo[uIndex];
}
return(uchCRCHi<<8|uchCRCLo);
}
/*---------------------------------------------------------------------------
调用方式:
voidSendData(unsignedchar*output,unsignedcharOutlength)
函数说明:
发送数据至窗口
---------------------------------------------------------------------------*/
voidSendData(unsignedchar*output,unsignedcharOutlength)
{
ES=0;
while(Outlength--)
{
TI=0;
ACC=*output;
TB8=P;
SBUF=*(output++);
while(!
TI);
TI=0;
}
ES=1;
}
/********************************************
Function:
强制位值子函数
Input:
位地址,强制值
Output:
结果值
********************************************/
bitSetVal(uintAddress,bitVal)//控制某位输出
{
bitresult=1;
switch(Address&0x0f)//取后四位,共16位数据
{
case0:
bit0=Val;break;
case1:
bit1=Val;break;
case2:
bit2=Val;break;
case3:
bit3=Val;break;
case4:
bit4=Val;break;
case5:
bit5=Val;break;
case6:
bit6=Val;break;
case7:
bit7=Val;break;
case8:
bit8=Val;break;
case9:
bit9=Val;break;
case10:
bit10=Val;break;
case11:
bit11=Val;break;
case12:
bit12=Val;break;
case13:
bit13=Val;break;
case14:
bit14=Val;break;
case15:
bit15=Val;break;
default:
result=0;break;
}
returnresult;
}
/********************************************
Function:
读位值子函数
Input:
位地址
Output:
位的值
********************************************/
ucharGetVal(uintAddress)//读某位的值
{
uintAddress_temp;
ucharVal=0;
Address_temp=Address;
switch(Address_temp&0x0f)
{
case0:
Val=bit0;break;
case1:
Val=bit1;break;
case2:
Val=bit2;break;
case3:
Val=bit3;break;
case4:
Val=bit4;break;
case5:
Val=bit5;break;
case6:
Val=bit6;break;
case7:
Val=bit7;break;
case8:
Val=bit8;break;
case9:
Val=bit9;break;
case10:
Val=bit10;break;
case11:
Val=bit11;break;
case12:
Val=bit12;break;
case13:
Val=bit13;break;
case14:
Val=bit14;break;
case15:
Val=bit15;break;
default:
break;
}
returnVal;
}
/********************************************
Function:
设置单寄存器值子函数
Input:
寄存器地址,值
Output:
结果值
********************************************/
bitSetRegisterVal(uintAddress,uintVal)//直接赋值
{
ucharVal_h,Val_l;
uintAddr;
bitresult=1;
Addr=Address;
Val_h=(char)(Val>>8);
Val_l=(char)Val;
if(Addr<1023)
{
IapEraseSector(0x0000);//扇区擦除
IapProgramByte(Addr,Val_h);
IapProgramByte(Addr+1,Val_l);
}
else
result=0;
returnresult;
}
/********************************************
Function:
读IO状态子函数
Input:
无1OK
Output:
无
********************************************/
voidReadVal(void)
{
uinttemp;
uintStartAddress,tempAddress;
ucharCoilNum,i,ByteNum,j;
ucharCoilVal;
bitexit=0;
StartAddress=resvbuf[2];//0
StartAddress=(StartAddress<<8)|resvbuf[3];
tempAddress=StartAddress;
CoilNum=resvbuf[5];//读取的位数<16位
ByteNum=CoilNum/8;//计算有几个字节
if(CoilNum%8!
=0)
ByteNum++;//有余加1
Sendbuf[2]=ByteNum;//返回的字节数
Sendbuf[1]=resvbuf[1];
if((resvbuf[1]==0x01)|(resvbuf[1]==0x02))
{
for(i=0;i { Sendbuf[i+3]=0;//置零 for(j=0;j<8;j++) { CoilVal=GetVal(StartAddress); Sendbuf[i+3]|=CoilVal< StartAddress++; if(StartAddress>=tempAddress+CoilNum)//? 读完 { exit=1; break; } } if(exit==1) break; } } SendCount=5+ByteNum;//地址码,功能码,字节数,状态数(N),CRC (2) temp=CRC16(Sendbuf,SendCount-2); Sendbuf[SendCount-2]=(char)(temp>>8); Sendbuf[SendCount-1]=(char)temp; SendData(Sendbuf,SendCount); } /******************************************** Function: 读寄存器状态子函数 Input: 无2OK Output: 无 ********************************************/ voidReadRegisters(void) { //uintdata; uinttemp; uintStartAddress; ucharByteCount,i; StartAddress=resvbuf[2]; StartAddress=(StartAddress<<8)|resvbuf[3]; ByteCount=resvbuf[5]*2;//寄存器数量*2=字节数 Sendbuf[2]=ByteCount;//设置需要返回的字节数 Sendbuf[1]=resvbuf[1]; if((resvbuf[1]==0x03)|(resvbuf[1]==0x04)) { for(i=0;i { Sendbuf[i+3]=IapReadByte(StartAddress); Sendbuf[i+4]=IapReadByte(StartAddress+1); StartAddress++; } } SendCount=ByteCount+5; temp=CRC16(Sendbuf,SendCount-2); Sendbuf[SendCount-2]=(char)(temp>>8); Sendbuf[SendCo
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