开发环境 KEIl



用4*4键盘组成0~9,确认,取消,共12个数字按键,用6位7段数码管组成显示电路,加电后,显示888888,输入密码时,会逐位显示F,密码输入过程中有错,可以按取消键再重新输入,当输入完毕后安确认键,输入密码就会和程序内部密码对比,正确绿灯就会亮,否则红灯会亮.



密码是:-KEIL development environment with 4* 4 keyboard composed of 0 ~ 9, to confirm, cancel, a total of 12 number buttons, using 6 7 digital tube display circuit components, power showed 888,888, enter a password, it will by-bit shows F, enter the course password is wrong, you can click Cancel and then re-enter, when after an input confirmation key, a password will be password and procedures of internal comparison, the right will be bright green, or red lights lit. Password is: