文件名称:Lock-source
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（1）通过8279的功能连接4*4的键盘和8位LED数码显示管，实现密码的键盘输入，数码管输出，并具备简单的功能键。
（2）利用步进电机模拟开门过程，在密码输入正确时启动，在接收到外部中断时停止。
（3）具有按键发声功能。
（4）密码错误时具有警报和警灯的，并且实现三次错误锁定的功能。
（5）通过INTR0实现系统的整体硬性复位。
（6）通过RT12864HZ控制LCD实现相关信息的提示。
（7）通过修改汇编程序中密码输入子程序本身达到修改密码的目的。
-(1) the functional connectivity by 8279 4* 4 keyboard and 8-bit LED digital display tubes, to achieve password keyboard input, digital output, and have a simple function keys. (2) open the door using the stepper motor simulation process starts when the password is entered correctly, the external interrupt is received when to stop. (3) has the voice function button. (4) password error with alert and warning lights, and three errors to achieve lock function. (5) the overall system is realized through INTR0 hard reset. (6) LCD realized by controlling the information RT12864HZ tips. (7) by modifying the assembler subroutine itself in password to change your password purposes.
（2）利用步进电机模拟开门过程，在密码输入正确时启动，在接收到外部中断时停止。
（3）具有按键发声功能。
（4）密码错误时具有警报和警灯的，并且实现三次错误锁定的功能。
（5）通过INTR0实现系统的整体硬性复位。
（6）通过RT12864HZ控制LCD实现相关信息的提示。
（7）通过修改汇编程序中密码输入子程序本身达到修改密码的目的。
-(1) the functional connectivity by 8279 4* 4 keyboard and 8-bit LED digital display tubes, to achieve password keyboard input, digital output, and have a simple function keys. (2) open the door using the stepper motor simulation process starts when the password is entered correctly, the external interrupt is received when to stop. (3) has the voice function button. (4) password error with alert and warning lights, and three errors to achieve lock function. (5) the overall system is realized through INTR0 hard reset. (6) LCD realized by controlling the information RT12864HZ tips. (7) by modifying the assembler subroutine itself in password to change your password purposes.
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Lock source.docx