?? mima.c
字號:
//proteus仿真論壇：proteus.5d6d.com
#include<reg51.h>
#include<intrinS.h>
#include<absacc.h>
#define uchar unsigned char
#define C02_write 0xa0
#define C02_read 0xa1
#define no0 0x28
#define no1 0x14
#define no2 0x24
#define no3 0x44
#define no4 0x12
#define no5 0x22
#define no6 0x42
#define no7 0x11
#define no8 0x21
#define no9 0x41
#define enter 0x88
#define backspace 0x81
#define lcm_write_cmd_add XBYTE[0x80FF]
#define lcm_write_data_add XBYTE[0x81FF]
#define lcm_read_busy_add XBYTE[0x82FF]
#define lcm_read_data_add XBYTE[0x83FF]
uchar idata temp5_password[6]={0x00,0x00,0x00,0x00,0x00,0x00};
uchar idata key_code[]={no0,no1,no3,no4,no5,no6,no7,no8,no9};
sbit SCL=P3^0;
sbit SDA=P3^1;
sbit i=P3^2;
bit ack;
uchar int_counter_1;
unsigned int int_counter_2;
void delayms(uchar i)
{
uchar j;
for(;i>0;i--)
for(j=124;j>0;j--);
}
void longdelay(uchar i)
{
unsigned int j;
for(;i>0;i--)
for(j=10000;j>0;j--);
}
void lcm_wait()
{
while(lcm_read_busy_add&0x80);
}
void lcm_write_cmd(uchar lcm_cmd)
{
lcm_wait();
lcm_write_cmd_add=lcm_cmd;
}
void lcm_write_data(uchar lcm_data)
{
lcm_wait();
lcm_write_data_add=lcm_data;
}
uchar lcm_read_data(void)
{
uchar lcm_data;
lcm_wait();
lcm_data=lcm_read_data_add;
return(lcm_data);
}
void lcm_setxy(uchar x,uchar y)
{
if(y==1) lcm_write_cmd(x|0x80);
if(y==2) lcm_write_cmd(x|0xc0);
}
void lcm_write_string(uchar *string)
{
uchar i=0;
while(string[i]!='\0')
{
lcm_write_data(string[i]);
i++;
}
}
void lcm_roll_display(uchar *string,uchar y)
{
uchar counter;
lcm_write_cmd(0x06);
lcm_setxy(0,y);
while(string[counter]!='\0')
{
lcm_write_data(string[counter]);
counter++;
if (counter==19) lcm_setxy(19,y);
longdelay(2);
}
lcm_write_cmd(0x07);
lcm_setxy(19,y);
while(string[counter]!='\0')
{
lcm_write_data(string[counter]);
counter++;
if (counter==19) lcm_setxy(19,y);
longdelay(2);
}
}
void lcm_init()
{
delayms(20);
lcm_write_cmd_add=0x38;
delayms(4);
lcm_write_cmd_add=0x38;
delayms(1);
lcm_write_cmd_add=0x38;
lcm_write_cmd(0x38);
lcm_write_cmd(0x0f);
lcm_write_cmd(0x01);
lcm_write_cmd(0x06);
}
void I2C_start(void)
{
SDA=1;
SCL=1;
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
SDA=0;
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
SCL=0;
_nop_();
_nop_();
}
void I2C_stop(void)
{
SDA=0;
SCL=1;
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
SDA=1;
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
SCL=0;
_nop_();
_nop_();
}
void I2C_ackownledge(void)
{
SDA=0;
_nop_();
_nop_();
SCL=1;
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
SCL=0;
_nop_();
_nop_();
_nop_();
}
void I2C_no_ackownledge(void)
{
SDA=1;
_nop_();
_nop_();
SCL=1;
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
SCL=0;
_nop_();
_nop_();
_nop_();
}
void I2C_sendB(uchar byte)
{
uchar counter;
for(counter=0;counter<8;counter++)
{
if(byte&0x80) SDA=1;
else SDA=0;
_nop_();
SCL=1;
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
SCL=0;
_nop_();
_nop_();
byte<<=1;
}
_nop_();
_nop_();
SDA=1;
_nop_();
_nop_();
_nop_();
SCL=1;
_nop_();
_nop_();
_nop_();
if(SDA==0) ack=1;
else ack=0;
SCL=0;
_nop_();
_nop_();
}
uchar I2C_receiveB(void)
{
uchar temp;
uchar counter;
temp=0;
SDA=1;
_nop_();
_nop_();
for(counter=0;counter<8;counter++)
{
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
SCL=1;
_nop_();
_nop_();
if(SDA==1) temp=(temp<<1)|0x01;
else temp=temp<<1;
_nop_();
_nop_();
SCL=0;
_nop_();
_nop_();
_nop_();
}
_nop_();
_nop_();
return(temp);
}
/*bit I2C_write_byte(uchar byte,uchar address)
{
I2C_sendB(address);
if(ack=0)
{
I2C_stop();
return(0);
}
else I2C_sendB(byte); */
bit I2C_send_string(uchar *string,uchar no,uchar address)
{
uchar counter;
for(counter=0;counter<no;counter++)
{
I2C_start();
I2C_sendB(C02_write);
if(ack==0) return(0);
I2C_sendB(address+counter);
if(ack==0) return(0);
I2C_sendB(string[counter]);
I2C_stop();
delayms(20);
}
return(1);
}
bit I2C_receive_string(uchar *string,uchar no,uchar address)
{
uchar counter;
for(counter=0;counter<no;counter++)
{
I2C_start();
I2C_sendB(C02_write);
if(ack==0) return(0);
I2C_sendB(address+counter);
if(ack==0) return(0);
I2C_start();
I2C_sendB(C02_read);
if(ack==0) return(0);
*(string+counter)=I2C_receiveB();
I2C_no_ackownledge();
I2C_stop();
}
}
uchar get_key()
{
uchar row_code;
uchar col_code;
P1=0xf0;
if(P1!=0xf0)
{
delayms(10);
if(P1!=0xf0)
{
row_code=0xfe;
while(row_code!=0x7f)
{
P1=row_code;
if(P1!=row_code)
{
col_code=(P1&0xf0)|0x0f;
return( (~col_code)|(~row_code));
}
row_code=((row_code<<1)|0x01);
}
}
}
return(0x00);
}
void convert_code(uchar *string)
{
uchar counter=0;
for(counter=0;counter<6;counter++)
{
switch(*string)
{
case no0:
*string=0x00;
break;
case no1:
*string=0x01;
break;
case no2:
*string=0x02;
break;
case no3:
*string=0x03;
break;
case no4:
*string=0x04;
break;
case no5:
*string=0x05;
break;
case no6:
*string=0x06;
break;
case no7:
*string=0x07;
break;
case no8:
*string=0x08;
break;
case no9:
*string=0x09;
break;
default:
break;
}
string++;
}
}
bit compare_string(uchar *string1,uchar *string2)
{
uchar counter;
for(counter=0;counter<6;counter++)
{
if(string1[counter]!=string2[counter]) return(0);
}
return(1);
}
uchar step_choose(void)
{
unsigned int i;
uchar key;
do{
lcm_write_cmd(0x01);
lcm_write_cmd(0x06);
lcm_setxy(0,1);
lcm_write_string("input password");
lcm_setxy(0,2);
lcm_write_string("please press 1");
for(i=0;i<30000;i++)
{
key=get_key();
if((key==no1)||(key==no2)) break;
}
if((key!=no1)&&(key!=no2))
{
lcm_write_cmd(0x01);
lcm_write_cmd(0x06);
lcm_setxy(0,1);
lcm_write_string("change password");
lcm_setxy(0,2);
lcm_write_string("please press 2");
for(i=0;i<30000;i++)
{
key=get_key();
if((key==no1)||(key==no2)) break;
}
}
}
while((key!=no1)&&(key!=no2));
return(key);
}
bit input_password(uchar *password)
{
uchar counter;
uchar key;
lcm_setxy(0,2);
for(counter=0;counter<7;counter++)
{
longdelay(3);
if(counter<6)
{
do{
key=get_key();
}
while(key==0x00);
if((key!=backspace)&&(key!=enter))
{
lcm_write_data('*');
password[counter]=key;
}
if(key==backspace)
{
if(counter>0)
{
lcm_setxy(--counter,2);
lcm_write_data(' ');
password[counter]=0x00;
lcm_setxy(counter,2);
counter--;
}
}
if(key==enter)
{
lcm_setxy(0,1);
return( 0);
}
}
if(counter==6)
{
do{
key=get_key();
}
while((key!=backspace)&&(key!=enter));
if(key==backspace)
{
lcm_setxy(--counter,2);
lcm_write_data(' ');
password[counter]=0x00;
lcm_setxy(counter,2);
counter--;
}
if(key==enter)
{
return(1);
}
}
}
}
void mima()
{
uchar key;
uchar idata temp1_password[6]={0,0,0,0,0,0};
uchar idata temp3_password[6]={0,0,0,0,0,0};
uchar idata temp2_password[6]={0,0,0,0,0,0};
uchar idata temp4_password[6]={0,0,0,0,0,0};
key=step_choose();
if(key==no1)
{
I2C_receive_string(temp1_password,6,0x00);
lcm_write_cmd(0x01);
lcm_write_cmd(0x06);
lcm_setxy(2,0);
lcm_write_string("input password");
if(input_password(temp2_password))
{
convert_code(temp2_password);
if(compare_string(temp1_password,temp2_password))
{
lcm_setxy(0,2);
lcm_write_string("correct!");
longdelay(6);
return;
}
else
{
lcm_setxy(0,2);
lcm_write_string("wrong password");
longdelay(6);
return;
}
}
else
{
lcm_setxy(0,2);
lcm_write_string("error! ");
longdelay(6);
}
}
else
{
I2C_receive_string(temp1_password,6,0x00);
lcm_write_cmd(0x01);
lcm_write_cmd(0x06);
lcm_setxy(0,0);
lcm_write_string("input old password");
if(input_password(temp2_password))
{
convert_code(temp2_password);
if(compare_string(temp1_password,temp2_password))
{
lcm_setxy(0,2);
lcm_write_string("password correct!");
longdelay(6);
lcm_write_cmd(0x01);
lcm_write_cmd(0x06);
lcm_setxy(0,1);
lcm_write_string("input new password");
if(input_password(temp3_password))
{
lcm_write_cmd(0x01);
lcm_write_cmd(0x06);
lcm_setxy(0,1);
lcm_write_string("input password again");
if(input_password(temp4_password))
{
if(compare_string(temp3_password,temp4_password))
{
convert_code(temp3_password);
I2C_send_string(temp3_password,6,0x00);
lcm_write_cmd(0x01);
lcm_write_cmd(0x06);
lcm_setxy(0,1);
lcm_write_string("password has");
lcm_setxy(0,2);
lcm_write_string("been changed");
longdelay(10);
return;
}
else
{
lcm_write_cmd(0x01);
lcm_write_cmd(0x06);
lcm_setxy(0,1);
lcm_write_string("twice input");
lcm_setxy(0,2);
lcm_write_string("is different");
longdelay(10);
return;
}
}
else
{
lcm_setxy(0,2);
lcm_write_string("error! ");
longdelay(10);
return;
}
}
else
{
lcm_setxy(0,2);
lcm_write_string("error! ");
longdelay(10);
return;
}
}
else
{
lcm_setxy(0,2);
lcm_write_string("wrong password");
longdelay(6);
return;
}
}
else
{
lcm_setxy(0,2);
lcm_write_string("error! ");
longdelay(6);
return;
}
}
}
void int_service(void) using 0 interrupt 0
{
EA=0;
EX0=0;
for(int_counter_1=10;int_counter_1>0;int_counter_1--)
{
for(int_counter_2=0xffff;int_counter_2>0;int_counter_2--)
{
if(i)
{
EA=1;
EX0=1;
return;
}
}
}
lcm_write_cmd(0x01);
lcm_write_cmd(0x06);
lcm_write_string("rest success!");
longdelay(12);
I2C_send_string(temp5_password,6,0x00);
(*(void(*)())0)();
}
void main(void)
{
IT0=1;
EX0=1;
EA=1;
lcm_init();
while(1)
{
mima();
}
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -