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该课程设计使用了三块接口芯片，8253、8255、8259；在程序中需要对8255芯片的控制口进行修改，改成自己所用实验板的端口-The course is designed to use the three interface chip, 8253,8255,8259 in the program need to control the port 8255 to modify the chip, into his own experimental port board

51单片机程序，读6264用的，请大家试一下，请多提意见-51 SCM procedures, time used in 6264, please try everyone, please do so

密码锁， 实现密码判断，实现密码更改，实现程序正常结束，实现非软件的准确延时，输入错误3次后自动结束程序，根据操作产生的不同结果配以不同的音效 -Password lock, password realize judgment achieve password change, the end of the normal implementation process, the accurate implementation of non-software delay, enter the wrong end of 3 times after the program automatically, under the operation of the different results produced with different audio

本程序需在DOS下运行。每运行一次可执行程序random.exe，即可显示任意两个 16进制数的加法或减法表达式及其运算结果。在减法运算中，如果被减数小于减数，显示 “Divide Overflow”的提示信息。-the process required under the DOS operating. Every time running executable random.exe. two shows can be arbitrary number of 16 Decimal Addition or subtraction expression and Operational results. The subtraction operation, if less than subtrahend minuend, shows that the "Divide Overflow" message.

Fortran 的矩阵求逆程序-Fortran the matrix inversion process

具有关机记忆功能的定时器程序，工厂生产流水线用。-With memory function timer shutdown procedures, factory production lines to use.

LCD modle AT1602 显示程序,纯用ASM汇编编写，可作参考使用哦！如有问题请联系我。13710397625，陈sir

io bios ziyuan xia zai -io bios ziyuan xia zai

地铁售票级，票价2～7元，可一次购买多种票价的票，最高张数为10张-Metro ticket class, the fare from 2 to 7 yuan, can be time to buy a variety of fare tickets, the maximum number of sheets of 10