单片机键盘扫描C程序

#include<reg51.h>

#define uint unsigned int

#define uchar unsigned char

void delay(uint z)

sbit LE=P1^4

uchar code table[]={

0xfc,0x60,0xda,0xf2,

0x66,0xb6,0xbe,0xe0,

0xfe,0xf6,0xee,0x3e,

0x9c,0x7a,0x9e,0x8e

}

void 桐余main()

{

uchar temp

uint num

while(1)

{

P2=0xfe //按键扫描第一行衡芦

temp=P2

temp=temp&0xf0

while(temp!=0xf0)

{

delay(10) //消抖

temp=P2

temp=temp&0xf0

while(temp!=0xf0) //再次确认是否有键按下

{

temp=P2

switch(temp)

{

case 0xee:num=0break

case 0xde:num=1break

case 0xbe:num=2break

case 0x7e:num=3break

}

while(temp!=0xf0) //松手检测

{

temp=P2

temp=temp&0xf0

}

delay(10) //消抖

LE=1

P0=table[num]

LE=0

P1=0x0f

}

}

P2=0xfd //按键扫描第二行

temp=P2

temp=temp&0xf0

while(temp!=0xf0)

{

delay(10)

temp=P2

temp=temp&0xf0

while(temp!=0xf0)

{

temp=P2

switch(temp)

{

case 0xed:num=4break

case 0xdd:num=5break

case 0xbd:num=6break

case 0x7d:num=7break

}

while(temp!=0xf0)

{

temp=P2

temp=temp&局拦滚0xf0

}

delay(10)

LE=1

P0=table[num]

LE=0

P1=0x0f

}

}

P2=0xfb //按键扫描第三行

temp=P2

temp=temp&0xf0

while(temp!=0xf0)

{

delay(10)

temp=P2

temp=temp&0xf0

while(temp!=0xf0)

{

temp=P2

switch(temp)

{

case 0xeb:num=8break

case 0xdb:num=9break

case 0xbb:num=10break

case 0x7b:num=11break

}

while(temp!=0xf0)

{

temp=P2

temp=temp&0xf0

}

delay(10)

LE=1

P0=table[num]

LE=0

P1=0x0f

}

}

P2=0xf7 //按键扫描第四行

temp=P2

temp=temp&0xf0

while(temp!=0xf0)

{

delay(10)

temp=P2

temp=temp&0xf0

while(temp!=0xf0)

{

temp=P2

switch(temp)

{

case 0xe7:num=12break

case 0xd7:num=13break

case 0xb7:num=14break

case 0x77:num=15break

}

while(temp!=0xf0)

{

temp=P2

temp=temp&0xf0

}

delay(10)

LE=1

P0=table[num]

LE=0

P1=0x0f

}

}

}

}

void delay(uint z) //延时子函数

{

uint x

for(zz>0z--)

for(x=1000x>0x--)

}

for(int i=0i<6i++)

{

for(int j=0j<10j++)

{

theport[j].rmt_host=rmt_host

theport[j].p=port[i*10+j]

theport[j].n=j

Thread[j]=AfxBeginThread(pScan,(LPVOID)&theport[j])

//启动端口扫描线程

hThread[j]=Thread[j]->m_hThread

Sleep(1)

}

WaitForMultipleObjects(10,hThread,TRUE,120000)

}

//扫描模块代码

SOCKET sockfd

SOCKADDR_IN addr

sockfd = socket(AF_INET, SOCK_STREAM, 0)

if (sockfd <0)

{

exit(0)

}

addr.sin_family = AF_INET

addr.sin_port = htons(port)

addr.sin_addr.s_addr = inet_addr(rmt_host)

int r = connect(sockfd,(struct sockaddr *) &addr, sizeof(addr))

//尝试连接端口进行检测

closesocket(sockfd)

//连接返仿搜回值处理

if (r!=-1)

{

::PostMessage(hWnd,WM_DISPLAY,port,0)

}

//显示端口颤大扫描结果

LONG CScanDlg::OnDisplay(LONG lParam, UINT wParam)

{

LPSERVENT bar

CString open

int p=lParam

bar = getservbyport(htons(p),"tcp")

open.Format("备洞历\t%d号端口(%s)开放!\r\n",p,(bar == NULL) ? "未知" :

bar->s_name)

m_HistoryEdit.AppendString (open)

return 0

}

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