汇编程序指导，具体上机步骤，以及详细实例

（1） 有一个主持人控制开关和8路抢答按扭，当主持人允许抢答时才能进行抢答操作，并用一个数码管显示抢答选手的号码，同时其他选手不能再抢答。 （2）电路上要加个蜂鸣器的电路，当有选手抢答时蜂鸣器响一下。 （3）要有倒计时功能，开始抢答时开始倒20秒计时，用两个数码管显示，当有人抢答时停止倒计时。 2.2拓展部分 用按键可设置倒计时的时间，范围在5秒到30秒之间。-(1) has a host switch and 8-way control button to answer in, when the moderator allowed to be carried out to answer in time to answer in operation, and use an LED display to answer in the number of players, while other players can no longer answer in his place. (2) the circuit, we should add a buzzer circuit, when there are players when the buzzer rang to answer in about. (3) to have the countdown feature to begin to answer in 20 seconds when you start down time, using two digital tube display, when someone stops to answer in the countdown. 2.2 The expansion of part of the buttons can be set with the countdown time, the range of 5 seconds to 30 seconds.

从cmos中读取信息，来显示时间的时钟程序-from CMOS Read information to show that the clock procedures

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

汇编程序从键盘输入一系列字符,然后按小写字母、数字字符和其他字符分类计数，最-Assembler series of characters from the keyboard and then press the lowercase letters, numbers, characters and other characters were counted, the most

计时程序,对8253进行分频,使用二个计数器,使第二个计数器的OUT作为中断源,送到8259产生中断,在LED上显示时间-time procedures for the 8,253-frequency, the use of two counters, so that a second counter OUT interrupted as a source to have interrupted 8259, the time shown on the LED

检查一串字符中每个字符出现的次数外加流程图说明文档-check each string of characters in the number of characters plus flow chart documentation

TLV2544/48 Interface routine

通用键盘显示程序，可连接带有isp接口的嵌入主板-Universal Keyboard Viewer, can be connected with the isp interface embedded motherboard

8051对时钟芯片DS1302和液晶LCD1602的控制，在LCD上显示时间，当前的时间。-8051 pairs of clock chip DS1302 and LCD1602 LCD control, in the LCD display time, the current time.

51编写的电扇的程序，可以控制转速，并且在液晶上显示。在我们的板子上可以调试通过的-51 fans prepared procedures to control speed, and liquid crystal display. In our board can debug through the