📄 wg.c
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//------------------------------------------------------
//功能：把数组封包成韦根26的格式，并发送出去
// 原理是把每个字节的低4位取出，来计算这个字节的值
//入口：str＝要封包的数组，
//出口：DATA0P3.0;DATA1=P3.1
//设计：大鹏，大鹏艾迪，2006/4/11
//------------------------------------------------------
/*#include <52.h>
#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long int*/
extern sbit WG_DATA0 =P3^2;
extern sbit WG_DATA1 =P3^3 ;
void send_wiegand26(uchar *str)
{
//| wiegand[0] | wiegand[1] | wiegand[2] |
//| *str *(str + 1) | *(str + 2) *(str + 3)| *(str + 4) *(str + 5)|
uchar idata i;
static uchar data one_num; //计算1的个数
uchar data check_temp; //韦根包奇偶效验中间暂存
bit data even; //韦根包前12位偶效验
bit data odd; //韦根包后12位齐效验
static uchar data wiegand[3]; //韦根包数据24位
// EA=0;//禁止中断
//--------------------------------端口方向定义
// P3M0 = 0x00; //普通I/O口
// P3M1 = 0x00;
//================================数组到韦根包的转化
wiegand[0] = wiegand[0]|((*str)<<4);//原理是把每个字节的低4位取出，来计算这个字节的值
wiegand[0] = wiegand[0]|(*(str+1)&0x0f);
//--------------------------------计算前8位1的个数，为偶效验用
check_temp = wiegand[0];
for(i = 0;i<8;i++)
{
if(check_temp&0x01) //(check_temp&0x01)
{
one_num++;
}
check_temp >>= 1;
}
wiegand[1] = wiegand[1]|(*(str+2)<<4);
//--------------------------------计算接下来的4位1的个数，为偶效验用
check_temp = wiegand[1];
for(i = 0;i<4;i++)
{
if(check_temp&0x80)
{
one_num++;
}
check_temp<<=1;
}
//--------------------------------判断1的个数
one_num%2 == 0 ? (even = 0):( even = 1);
one_num = 0;
wiegand[1] = wiegand[1]|(*(str+3)&0x0f);
//--------------------------------计算接下来的4位1的个数，为奇效验用
check_temp = wiegand[1];
for(i = 0;i<4;i++)
{
if(check_temp&0x01){one_num++;}
check_temp>>=1;
}
wiegand[2] = wiegand[2]|(*(str+4)<<4);
wiegand[2] = wiegand[2]|(*(str+5)&0x0f);
//--------------------------------计算接下来的8位1的个数，为奇效验用
check_temp = wiegand[2];
for(i = 0;i<8;i++)
{
if(check_temp&0x01){one_num++;}
check_temp >>= 1;
}
//--------------------------------判断1的个数
one_num%2 == 0 ? (odd = 1):( odd = 0);
one_num = 0;
//================================启动发送，用定时器做时间延时
//--------------------------------韦根 输出端初始化
WG_DATA0 = 1;
WG_DATA1 = 1;
//--------------------------------发送偶效验
TMOD=0X01; //T0为方式1计数
EA=1; EX1=0; EX0=0; //开中断,禁止INT0,INT1中断
if(even) //enen韦根包前12位偶效验标志
{
WG_DATA1 = 0;
//-------------------------延时100us
TR0 = 0; //停止T0计算
TH0 = (65536 - 158)/256; //定时100us 20MHz晶体
TL0 = (65536 - 158)%256;
TF0 = 0; //T0中断请求标志清0
ET0 = 0; //T0中断禁止
TR0 = 1; //启动T0计算
while (!TF0) { ;}
TF0 = 0;
WG_DATA1 = 1;
}
else
{
WG_DATA0 = 0;
//------------------------延时100us
TR0 = 0;
TH0 = (65536 - 158)/256; //定时100us
TL0 = (65536 - 158)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
WG_DATA0 = 1;
}
//----------------------------延时一个发送周期
TR0 = 0;
TH0 = (65536 - 1582)/256; //定时1000us//1500us
TL0 = (65536 - 1582)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
//-------------------------------发送24位数据
for(i = 0;i<24;i++)
{
//---------------------------韦根 输出端初始化
WG_DATA0 = 1;
WG_DATA1 = 1;
if((wiegand[0])&0x80)
{
WG_DATA1 = 0;
//----------------------延时100us
TR0 = 0;
TH0 = (65536 - 158)/256; //定时100us
TL0 = (65536 - 158)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
WG_DATA1 = 1;
}
else
{
WG_DATA0 = 0;
//---------------------延时100us
TR0 = 0;
TH0 = (65536 - 158)/256; //定时100us
TL0 = (65536 - 158)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
WG_DATA0 = 1;
}
(*(long*)&wiegand[0]) <<= 1;
//-------------------------------延时一个发送周期
TR0 = 0;
TH0 = (65536 - 1582)/256; //定时1000us//1500us
TL0 = (65536 - 1582)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
}
//==============================发送奇效验位
//------------------------------韦根 输出端初始化
WG_DATA0 = 1;
WG_DATA1 = 1;
if(odd) //韦根包后12位齐效验标志
{
WG_DATA1 = 0;
//-------------------------延时100us
TR0 = 0;
TH0 = (65536 - 158)/256; //定时100us
TL0 = (65536 - 158)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
WG_DATA1 = 1;
}
else
{
WG_DATA0 = 0;
//-------------------------延时100us
TR0 = 0;
TH0 = (65536 - 158)/256; //定时100us
TL0 = (65536 - 158)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
WG_DATA0 = 1;
}
}
/*
void send_wiegand34(uchar *str)
{
//| wiegand[0] | wiegand[1] | wiegand[2] |
//| *str *(str + 1) | *(str + 2) *(str + 3)| *(str + 4) *(str + 5)|
uchar data i;
static uchar data one_num; //计算1的个数
uchar data check_temp; //韦根包奇偶效验中间暂存
bit data even; //韦根包前16位偶效验
bit data odd; //韦根包后16位齐效验
static uchar data wiegand[4]; //韦根包数据32位
// EA=0;//禁止中断
//--------------------------------端口方向定义
// P3M0 = 0x00; //普通I/O口
// P3M1 = 0x00;
//================================数组到韦根包的转化
wiegand[0] = wiegand[0]|((*str)<<4);//原理是把每个字节的低4位取出，来计算这个字节的值
wiegand[0] = wiegand[0]|(*(str+1)&0x0f);
//--------------------------------计算前8位1的个数，为偶效验用
check_temp = wiegand[0];
for(i = 0;i<8;i++)
{
if(check_temp&0x01) //(check_temp&0x01)
{
one_num++;
}
check_temp >>= 1;
}
wiegand[1] = wiegand[1]|(*(str+2)<<4);
//--------------------------------计算接下来的4位1的个数，为偶效验用
check_temp = wiegand[1];
for(i = 0;i<4;i++)
{
if(check_temp&0x80)
{
one_num++;
}
check_temp<<=1;
}
//--------------------------------判断1的个数
one_num%2 == 0 ? (even = 0):( even = 1);
one_num = 0;
wiegand[1] = wiegand[1]|(*(str+3)&0x0f);
//--------------------------------计算接下来的4位1的个数，为奇效验用
check_temp = wiegand[1];
for(i = 0;i<4;i++)
{
if(check_temp&0x01){one_num++;}
check_temp>>=1;
}
wiegand[2] = wiegand[2]|(*(str+4)<<4);
wiegand[2] = wiegand[2]|(*(str+5)&0x0f);
//--------------------------------计算接下来的8位1的个数，为奇效验用
check_temp = wiegand[2];
for(i = 0;i<8;i++)
{
if(check_temp&0x01){one_num++;}
check_temp >>= 1;
}
//--------------------------------判断1的个数
one_num%2 == 0 ? (odd = 1):( odd = 0);
one_num = 0;
//================================启动发送，用定时器做时间延时
//--------------------------------韦根 输出端初始化
WG_DATA0 = 1;
WG_DATA1 = 1;
//--------------------------------发送偶效验
// TMOD=0X01; //T0为方式1计数
// EA=1; EX1=0; EX0=0; //开中断,禁止INT0,INT1中断
if(even) //enen韦根包前12位偶效验标志
{
WG_DATA1 = 0;
//-------------------------延时100us
TR0 = 0; //停止T0计算
TH0 = (65536 - 158)/256; //定时100us 20MHz晶体
TL0 = (65536 - 158)%256;
TF0 = 0; //T0中断请求标志清0
ET0 = 0; //T0中断禁止
TR0 = 1; //启动T0计算
while (!TF0) { ;}
TF0 = 0;
WG_DATA1 = 1;
}
else
{
WG_DATA0 = 0;
//------------------------延时100us
TR0 = 0;
TH0 = (65536 - 158)/256; //定时100us
TL0 = (65536 - 158)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
WG_DATA0 = 1;
}
//----------------------------延时一个发送周期
TR0 = 0;
TH0 = (65536 - 1582)/256; //定时1000us //1382//1500us
TL0 = (65536 - 1582)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
//-------------------------------发送24位数据
for(i = 0;i<32;i++)
{
//---------------------------韦根 输出端初始化
WG_DATA0 = 1;
WG_DATA1 = 1;
if((wiegand[0])&0x80)
{
WG_DATA1 = 0;
//----------------------延时100us
TR0 = 0;
TH0 = (65536 - 158)/256; //定时100us
TL0 = (65536 - 158)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
WG_DATA1 = 1;
}
else
{
WG_DATA0 = 0;
//---------------------延时100us
TR0 = 0;
TH0 = (65536 - 158)/256; //定时100us
TL0 = (65536 - 158)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
WG_DATA0 = 1;
}
(*(long*)&wiegand[0]) <<= 1;
//-------------------------------延时一个发送周期
TR0 = 0;
TH0 = (65536 - 1582)/256; //定时1000us //1500us -1382
TL0 = (65536 - 1582)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
}
//==============================发送奇效验位
//------------------------------韦根 输出端初始化
WG_DATA0 = 1;
WG_DATA1 = 1;
if(odd) //韦根包后12位齐效验标志
{
WG_DATA1 = 0;
//-------------------------延时100us
TR0 = 0;
TH0 = (65536 - 158)/256; //定时100us
TL0 = (65536 - 158)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
WG_DATA1 = 1;
}
else
{
WG_DATA0 = 0;
//-------------------------延时100us
TR0 = 0;
TH0 = (65536 - 158)/256; //定时100us
TL0 = (65536 - 158)%256;
TF0 = 0;
ET0 = 0;
TR0 = 1;
while (!TF0) { ;}
TF0 = 0;
WG_DATA0 = 1;
}
} */
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