mima.zip_430f149单片机

//P2为键盘输入位;P3.3为一个发光二极管,用来标志锁是否打开 //P3.0,P3.1,P3.2分别为RS,RW,EN; P4为数据传输位 #include<msp430x14x.h> #define uchar unsigned char #define uint unsigned int #define LCD_RS_H P3OUT |= BIT0 //P3.0 #define LCD_RS_L P3OUT &= ~BIT0 #define LCD_RW_H P3OUT |= BIT1 //P3.1 #define LCD_RW_L P3OUT &= ~BIT1 #define LCD_EN_H P3OUT |= BIT2 //P3.2 #define LCD_EN_L P3OUT &= ~BIT2 //液晶显示程序 void delay(uint z); //液晶延时函数 void initial(); void write_com(uchar com); void write_data(uchar dat); void write_string(uchar *string); //键盘程序 void menu(); //菜单选择函数，用以选择解锁，设密码功能 void input_show(); //开锁时读取键盘值并显示函数 void set_show(); //设定密码时读取键盘值并显示函数 void delay2(uchar z); // 键盘延时函数 uchar scan_keys(void); //键盘扫描函数 uchar unlock(void); //解锁函数 void wait(); //3次密码输入错误，执行锁屏函数 uchar exit = 0;//设全局变量，用以在输入密码三次错误时强制退出解锁系统 //键盘编码 uchar table[]={ //switch语句中的键盘值 0x00,0x31,0x32,0x33,0x46, //不显示， 1, 2, 3, 设置密码 1, 2, 3, 4 0x34,0x35,0x36,0x47, // 4, 5, 6, 确定 5, 6, 7, 8 0x37,0x38,0x39,0x48, // 7, 8, 9, 解锁 9,10,11,12 0x45,0x30,0x48,0x00}; // 复位, 0, 退出主菜单, 返回主菜单 13,14,15,16 // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 uchar table_turn[]={0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; //将数字转化为ASCII码 uchar tip[][40]={"设置密码成功", "设置密码失败", "解锁成功", "解锁失败", "请按键，选择所要进行的操作", "请输入6 位密码：", "密码匹配中", "请输入6 位新密码：", "三次密码输入错误，请等待响应："}; uchar input_password[6]={0}; //将输入的密码存入数组 uchar password[6]={1,1,1,2,2,2}; //存储密码数组,预设密码为111222 void main() { WDTCTL = WDTPW + WDTHOLD; P1DIR = 0xFF; //蜂鸣器 P1OUT |= BIT2; P1OUT &= ~BIT0; //二极管灭 P1OUT &= ~BIT1; P3DIR = 0XFF; //液晶读写控制I/O口 P4DIR = 0Xff; //液晶数据传输I/O口 P2DIR = 0X0f; //矩阵键盘I/O口 P2OUT = 0X00; //清除干扰 P2IES = 0X00; //上升沿触发 P2IFG = 0X00; //因为P1IES设置会使中断标志置位，故清零 P2IE = 0XFF; //系统中断允许 _EINT(); initial(); //初始化 LPM0; } //P2中断程序 #pragma vector = PORT2_VECTOR __interrupt void P2_Interrupt(void) { menu(); } uchar unlock(void) { uchar i = 0,flag = 1; //设置flag标志，若为1，则密码输入正确；若为0，密码输入错误 write_com(0x01);//清屏 write_com(0x80); write_string(tip[6]); while(i<6) { if(table_turn[ password[i] ] != input_password[i]) { flag = 0; break; } if(table_turn[ password[i] ] == input_password[i]) i++; } return flag; } void wait() { uchar control_1,control_2,stop = 0; write_com(0x01);//清屏 write_com(0x80); write_string(tip[8]); write_com(0x0c); ///整体显示，游标显示，游标位置显示 P1OUT &= ~BIT2; for(control_1 = 0;control_1 < 10;control_1++) { write_com(0x8F); write_data(0x39 - stop); stop++; for(control_2 = 0;control_2 < 10;control_2++) //输错时间延时 { delay2(255); } } P1OUT |= BIT2; } void menu() { P1OUT &= ~BIT0; //二极管灭 P1OUT &= ~BIT1; uchar temp = 0,cc; //temp为 unlock()返回标志，用以确定是否解锁成功 write_com(0x01);//清屏 write_com(0x0F); write_string(tip[4]); while(1) { cc = scan_keys(); if(cc) { switch(cc) { case 12://解锁 input_show(); temp = unlock(); if(temp == 0) { write_com(0x01);//清屏 write_com(0x80); write_string(tip[3]); write_com(0x0c); //显示指令:开显示,光标关 exit++; if(exit == 3) goto await; //三次输密错误，强制进入wait()函数 } else { P1OUT |= BIT0; //P3.3为1，灯亮，锁打开 write_com(0x01);//清屏 write_com(0x80); write_string(tip[2]); write_com(0x0c); //显示指令:开显示,光标关 } while(1) { cc = scan_keys(); if(cc == 16) { menu();break; } } case 4: //设置密码 P1OUT |= BIT1; input_show(); temp = unlock(); //设置密码时，首先验证旧密码。若为1，则密码输入正确；若为0，密码输入错误 if(temp == 0) //不能更改密码 { write_com(0x01);//清屏 write_com(0x80); write_string(tip[1]); write_com(0x0c); //显示指令:开显示,光标关 exit++; if(exit == 3) goto await; } else //temp = 1，可以更改密码 { set_show(); //更改密码 write_com(0x01);//清屏 write_com(0x80); write_string(tip[0]); write_com(0x0c); //显示指令:开显示,光标关 } while(1) { cc = scan_keys(); if(cc == 16) { menu();break; } } case 15:exit = 0; LPM0; //人工强制进入低功耗 break; default: break; } } if(exit == 3) { await:exit = 0; wait(); //3次输入密码错误时，进入wait()函数，在wait()函数中编写，结束后返回menu() menu(); break; } } } void input_show() { uchar flag = 0, j = 0,aa; write_com(0x01);//清屏 write_com(0x80); write_string(tip[5]); while(1) { aa = scan_keys(); if(aa) { switch(aa) { case 1:case 2:case 3:case 5:case 6:case 7:case 9:case 10:case 11:case 14: P5OUT = table[aa]; write_data(P5OUT); input_password[j] = table[aa]; j++; //将输入密码存入数组 break; case 16: menu(); break; case 13: write_com(0x01);//清屏 write_com(0x80); write_string(tip[5]); j = 0; //将j置零，清除存入input_password中错误的信息 continue; case 8: flag = 1;break; //密码输入完成，置标志flag = 1 default:break; } } if(flag == 1) break; //跳出while循环 } } void set_show() { uchar j=0,k = 0,flag = 0,bb; write_com(0x01);//清屏 write_com(0x80); write_string(tip[7]); while(1) { bb = scan_keys(); if(bb) { switch(bb) { case 1:case 2:case 3:case 5:case 6:case 7:case 9:case 10:case 11:case 14: P5OUT = table[bb]; write_data(P5OUT); input_password[j] = table[bb] - 0x30; j++;//table[bb]中为数字的ASCII码，减去0x30，将其转换为与十进制相等的十六进制形式，再将其存入数组 break; case 16: menu();break; case 13: write_com(0x01);//清屏 write_com(0x80); write_string(tip[5]); j = 0; //将j置零，清除存�