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📄 crc_func.cpp

📁 该工具用于数字电路仿真中的usb数据文件转换： 1.可以把11比特的令牌包数据（crc5）或者任意字节的数据包数据（crc16）转换为可以作为仿真输入的dn dp文件。 2.可以根据仿真接收到的d
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12 
// device_usb.cpp : implementation file
//

#include "stdafx.h"

#include "crc_func.h"
#include "crc_uiDlg.h"
#include <stdio.h>
#include <string.h>
#include "global.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif


struct trans_info transfer_info;



/******************************** crc 16 tx ************************************/
  


unsigned short crc_16=0x8005;

unsigned short data[1024];
char BinStr[20480]="";
char result[20480]="";
char TempStr[20480]="";

unsigned short crc_5=5;
 char str[30] ;



crc_func::~crc_func()
{
}

unsigned short CRC_16(unsigned short *aData,unsigned long aSize)
{
	unsigned short sign,a;
unsigned short temp;
int i,j;

a=0xffff;

//aData+=(aSize-1);
sign=0x0001;


for(j=aSize;j>0;j--)
{//printf("%x,",*aData);
for(i=0;i<8;i++)
{   temp=a&0x8000;
    temp=temp>>15;

//printf("%x,",(*aData&sign)>>i);
	if(((*aData&sign)>>i)^temp)
	{	
		a=a<<1;
		a=(a^crc_16);
	//	printf("%x,",a);
	}
	else
		a=a<<1;
printf("%x,",a);
	sign=sign<<1;}
	
aData++;
sign=0x0001;
}
a^=0xffff;
return a;
}






unsigned long readf_crc16()
{
	
	int i;
	

	FILE *fp;

	if((fp=fopen(transfer_info.source,"r"))==NULL)
	{
		printf("can not open the file!\n");
		return -1;
	}

	for(i=0;!feof(fp);i++)
		fscanf(fp,"%x",&data[i]);



	if(fclose(fp))
	{
		printf("can not close the file!\n");
		return -1;
	}
	//printf("%d,",i);
	return i;	
	
}


  
void StrToBinStr(unsigned short a)   
  {   
		char   *Bin[]={"00","01","10","11"};   
		int   i;     
	    //char BinStr[]="";
        unsigned short b[2];
		b[0]=a>>4;
		b[1]=a&0x0f;
		
		
      for(i=0;i<=1;i++)   
          {      
              strcat(BinStr,Bin[b[i]/4]);  
			 //字符转为Bin后的高四位   
              strcat(BinStr,Bin[b[i]%4]);                  //字符转为Bin后的低四位   
          }   //puts(BinStr); 
        
  }   


int  bitstuff()
{   
	int i,j=0,cnt=1;//结束sync结构的数据1被认为是序列的第一位

	for(i=0;i < strlen(BinStr);i++,j++)
	{   
		if(BinStr[i]=='1')
		{
			result[j]=BinStr[i];
			cnt++;
			if(cnt==6)
				{
					j++;
					result[j]='0';
					cnt=0;
		
				}
 
		}
		else if(BinStr[i]=='0')
		{
			result[j]=BinStr[i];
			cnt=0;
		}
	
		
	}
	return j;
}

void kf()
{
	FILE *fp;
	int a=0;
	char k[]="10";
	if(transfer_info.mode == CRC16_FLAG){
	if((fp=fopen(RESULT_FULL_16,"a"))==NULL)
		printf("file open error!\n");
	}
	else{
		if((fp=fopen(RESULT_FULL_5,"a"))==NULL)
		printf("file open error!\n");
	}
	
				fprintf(fp,"%s",transfer_info.dn_str);
				fputc(k[0],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.dp_str);
				fputc(k[1],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.rxd_str);
				fputc(k[1],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.rxd_delay);
				fputc('\n',fp);
			
		 
		if(fclose(fp))
		printf("Can not close the file!\n");
}

void jf()
{
	FILE *fp;
	int b=0;
	char j[]="01";
	if(transfer_info.mode == CRC16_FLAG){
	if((fp=fopen(RESULT_FULL_16,"a"))==NULL)
		printf("file open error!\n");
	}
	else{
		if((fp=fopen(RESULT_FULL_5,"a"))==NULL)
		printf("file open error!\n");
	}
	
		
				fprintf(fp,"%s",transfer_info.dn_str);
				fputc(j[0],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.dp_str);
				fputc(j[1],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.rxd_str);
				fputc(j[1],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.rxd_delay);
				fputc('\n',fp);
			
		 
		if(fclose(fp))
		printf("Can not close the file!\n");
}


void syncf()
{  
		int i;
		for(i=0;i<3;i++)
		{
			kf();
			jf();
		} 
		kf();
		kf();
		

}

void nrzif_tx16(int n)
{
	FILE *fp;
	int i,p;

	if(result[0]=='1')
	{	kf();
	p=0;}
	else if(result[0]=='0')
	{jf();
	p=1;}

	for(i=1;i<n;i++)
	{
		if(result[i]=='1'&&p==0)
		{kf();
		p=0;}
		else if(result[i]=='1'&&p==1)
		{
			jf();
			p=1;}
		else if(result[i]=='0'&&p==0)
		{jf();
		p=1;}
		else if(result[i]=='0'&&p==1)
		{kf();
		p=0;}
	}
  
if((fp=fopen(RESULT_FULL_16,"a"))==NULL)
		printf("file open error!\n");
	
			fprintf(fp,"%s",transfer_info.dn_str);
		    fputc('0',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.dp_str);
			fputc('0',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.rxd_str);
			fputc('1',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.rxd_delay);
			fputc('\n',fp);
			
			fprintf(fp,"%s",transfer_info.dn_str);
		    fputc('0',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.dp_str);
			fputc('0',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.rxd_str);
			fputc('1',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.rxd_delay);
			fputc('\n',fp);
			
		 
		if(fclose(fp))
		printf("Can not close the file!\n");
		jf();
}



void kh()
{
	FILE *fp;
	int a=0;
	char k[]="10";
	if(transfer_info.mode == CRC16_FLAG){
	if((fp=fopen(RESULT_HIGH_16,"a"))==NULL)
		printf("file open error!\n");
	}
	else{
		if((fp=fopen(RESULT_HIGH_5,"a"))==NULL)
		printf("file open error!\n");
	}
	
				fprintf(fp,"%s",transfer_info.dn_str);
				fputc(k[0],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.dp_str);
				fputc(k[1],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.rxd_str);
				fputc(k[1],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.rxd_delay);
				fputc('\n',fp);
			
		 
		if(fclose(fp))
		printf("Can not close the file!\n");
}

void jh()
{
	FILE *fp;
	int b=0;
	char j[]="01";
	if(transfer_info.mode == CRC16_FLAG){
	if((fp=fopen(RESULT_HIGH_16,"a"))==NULL)
		printf("file open error!\n");
	}
	else{
		if((fp=fopen(RESULT_HIGH_5,"a"))==NULL)
		printf("file open error!\n");
	}
	
				fprintf(fp,"%s",transfer_info.dn_str);
				fputc(j[0],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.dp_str);
				fputc(j[1],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.rxd_str);
				fputc(j[1],fp);
				fputs(" ; ",fp);
				fprintf(fp,"%s",transfer_info.rxd_delay);
				fputc('\n',fp);
			
		 
		if(fclose(fp))
		printf("Can not close the file!\n");
}


void synch()
{  int i;
		for(i=0;i<15;i++)
		{
		kh();
		jh();
		} 
		kh();
		kh();
		

}

void nrzih_tx16(int n)
{
	int i,p;

	if(result[0]=='1')
	{	kh();
	p=0;}
	else if(result[0]=='0')
	{jh();
	p=1;}

	for(i=1;i<n;i++)
	{
		if(result[i]=='1'&&p==0)
		{kh();
		p=0;}
		else if(result[i]=='1'&&p==1)
		{
			jh();
			p=1;}
		else if(result[i]=='0'&&p==0)
		{jh();
		p=1;}
		else if(result[i]=='0'&&p==1)
		{kh();
		p=0;}
	}
	if(p==0)
		for(i=0;i<8;i++)
			jh();
		else if(p==1)
			for(i=0;i<8;i++)
				kh();

}






DWORD	crc_func::crc16_tx(void)
{
	int k,m;
	int j,i;
	int n;
	unsigned short c;
    FILE *fp;

	j=readf_crc16();//从data.txt中按字节读取数据存入data全局数组中，j保存读入数据字节数
	
	c=CRC_16(data,j);//求该数据的crc16
	
	printf("--%x",c);
    data[j]=c>>8;
	data[j+1]=c&0x00ff;//将crc16加入到原数据尾部



	for(k=0;k<j;k++)
	{
		StrToBinStr(data[k]);

	}
	n=strlen(BinStr);
	
	for(m=1;m<=n/8;m++)
	for(k=8*m-1,i=8*(m-1);k>=(m-1)*8;k--,i++)
	{	
		TempStr[i]=BinStr[k];
      //  putchar(TempStr[i]);
	}
	strcpy(BinStr,TempStr);
//puts(BinStr);
	StrToBinStr(data[j]);
	StrToBinStr(data[j+1]);
	//将该16进制数组转化位2进制字符串保存在BinStr全局字符数组中
 
    k=bitstuff();//进行位填充，k为填充后的字符数目
    puts(result);

	
//--将数据－crc16结果写入全速文档
	if((fp=fopen(RESULT_FULL_16,"a"))==NULL)
		printf("can not open file resultf.txt!\n");

	for(n=0;n<j;n++)
	fprintf(fp,"%x-",data[n]);

	fprintf(fp,"%x$",data[j]);
	fprintf(fp,"%x",data[j+1]);
	fputc('\n',fp);

	if(fclose(fp))
		printf("can not close the file!\n");

	syncf();//加同步位写入文档
	nrzif_tx16(k);//进行nrzi编码并加包尾写入文档


//--将数据－crc16结果写入高速文档
	if((fp=fopen(RESULT_HIGH_16,"a"))==NULL)
		printf("can not open file resultf.txt!\n");

	for(n=0;n<j;n++)
	fprintf(fp,"%x-",data[n]);

	fprintf(fp,"%x$",data[j]);
	fprintf(fp,"%x",data[j+1]);

	fputc('\n',fp);
	
	if(fclose(fp))
		printf("can not close the file!\n");

	synch();//加同步位写入文档
    nrzih_tx16(k); //进行nrzi编码并加包尾写入文档

	return 0;
}

/******************************** crc 5 tx ************************************/



unsigned long Crc5(unsigned long crc)
{   
	unsigned long sign;
unsigned char a;
unsigned short temp;
int i;
//printf("%x,",crc);
a=0xff;
crc=crc<<5;

sign=0x8000;



for(i=11;i>0;i--)
{   temp=a&0x10;

//printf("%x,",temp);
//printf("%x,",crc&sign);
	if((crc&sign)^(temp<<i))
	{	a=a<<1;
		a=(a^crc_5);
		
	}
	else
		a=a<<1;
//printf("%x,",a);
  sign=sign>>1;

}
a^=0xff;
a&=0x1f;
return a;
}


void readf_crc5()
{
		int i;
	FILE *fp;
	if((fp=fopen(transfer_info.source,"r"))==NULL)
	{printf("can not open the file!\n");
	}
	for(i=6;i>=0;i--)
	{		str[i]=fgetc(fp);

	}
	for(i=10;!feof(fp);i--)
	{		str[i]=fgetc(fp);

	}
	if(fclose(fp))
	{printf("can not close the file!\n");
	}
	//puts(str);
}

unsigned long tox()
{
	unsigned long ox=0;
	int k,n=1;
	if(str[10]=='1')
		ox=1;
	for(k=9;k>=0;k--)
	{
		if(str[k]=='1')
			ox+=2*n;
		n*=2;
		//printf("%x,",ox);
	}//printf("%x",ox);
return ox;

}


void StrToBinStr_tx5(unsigned long a,char *BinStr5)   
  {   char   *Bin[]={"00","01","10","11"};   
      int   i;     
	
        unsigned long b[2];
		b[0]=a>>4;
		b[1]=a&0x0f;
		
	
      for(i=0;i<=1;i++)   
          {      
              strcat(BinStr5,Bin[b[i]/4]);  
			 //字符转为Bin后的高四位   
              strcat(BinStr5,Bin[b[i]%4]);                  //字符转为Bin后的低四位   
		
			
		  }    
     
  }   


int  bitstuff_tx5(char *re)
{   
	int i,j=0,cnt=1;//结束sync结构的数据1被认为是序列的第一位

	for(i=0;i<strlen(str);i++,j++)
	{   
		if((str[i])=='1')
		{*(re+j)=str[i];
		cnt++;
			if(cnt==6)
		{j++;
		*(re+j)='0';
		cnt=0;
		
		}
 
		}
		else if(str[i]=='0')
		{*(re+j)=str[i];
	cnt=0;}
	
		
	}

return j;
	}





void nrzif_tx5(int n,char *result_5)
{FILE *fp;
	int i,p;

	if(result_5[0]=='1')
	{	kf();
	p=0;}
	else if(result_5[0]=='0')
	{jf();
	p=1;}

	for(i=1;i<n;i++)
	{
		if(result_5[i]=='1'&&p==0)
		{kf();
		p=0;}
		else if(result_5[i]=='1'&&p==1)
		{
			jf();
			p=1;}
		else if(result_5[i]=='0'&&p==0)
		{jf();
		p=1;}
		else if(result_5[i]=='0'&&p==1)
		{kf();
		p=0;}
	}
  
if((fp=fopen(RESULT_FULL_5,"a"))==NULL)
		printf("file open error!\n");
	
			
			fprintf(fp,"%s",transfer_info.dn_str);
		    fputc('0',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.dp_str);
			fputc('0',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.rxd_str);
			fputc('1',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.rxd_delay);
			fputc('\n',fp);
			
			fprintf(fp,"%s",transfer_info.dn_str);
		    fputc('0',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.dp_str);
			fputc('0',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.rxd_str);
			fputc('1',fp);
			fputs(" ; ",fp);
			fprintf(fp,"%s",transfer_info.rxd_delay);
			fputc('\n',fp);
			
		 
		if(fclose(fp))
		printf("Can not close the file!\n");
		jf();
}








void nrzih_tx5(int n,char * result)
{
	int i;
	int p = 0;
	if(result[0]=='1')
	{	kh();
	p=0;}
	else if(result[0]=='0')
	{jh();
	p=1;}

	for(i=1;i<n;i++)
	{
		if(result[i]=='1'&&p==0)
		{kh();
		p=0;}
		else if(result[i]=='1'&&p==1)
		{
			jh();
			p=1;}
		else if(result[i]=='0'&&p==0)
		{jh();
		p=1;}
		else if(result[i]=='0'&&p==1)
		{kh();
		p=0;}
	}


	if(p == 0)
		for(i=0;i<8;i++)
			jh();
		else if(p==1)
			for(i=0;i<8;i++)
				kh();

}


char result_tx5[] = "";
char s_tx5[8]="";
DWORD crc_func::crc5_tx(void)
{
	unsigned long data;
	unsigned long hehe;
    
	
	int i,p;
	FILE *fp;
    readf_crc5();//将data.txt中11bit数据读入str[]全局数组
	//puts(str);
    data=tox();//将str数组中数据转换为16进制数
	//	printf("%x",data);	
	hehe=Crc5(data);//求出该数据crc5
	//hehe=hehe^0x001f;//对crc取反
	//printf("%x",hehe);

//--将数据－crc5结果写入全速文档
if((fp=fopen(RESULT_FULL_5,"a"))==NULL)
	{
		printf("can not open file resultf.txt!\n");}
	//fputc('\n',fp);
	fprintf(fp,"%x-",data);
	fprintf(fp,"%x",hehe);

	fputc('\n',fp);

	if(fclose(fp))
		printf("can not close the file!\n");

	//--将数据－crc5结果写入高速文档
		if((fp=fopen(RESULT_HIGH_5,"a"))==NULL)
	{
		printf("can not open file resultf.txt!\n");}
//	fputc('\n',fp);
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