tenets of several computer chip interface code

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.

emluator LED emluator LED

C8051的汇编驱动程序，如果能看懂会给你带来很大的好处，学习的好资料.-The driver of C8051, it will bring you very big benfit if you will read it, it is very nice.

c51原程序，好用的参考一下吧，我也有电动车程序２０５１的，有要的跟我联系！１３４０１３３０７３３　肖良军-C51 original procedure, useful for reference, I also have the electric car program in 2051, has wanted to contact me! Liang Xiao-jun 13401330733

P1口的流水灯程序，先亮流水，后不亮流水，正反相对-P1 mouth flow signals procedures and bright water, after failing to turn water, the relative pros and

89s51的9AT24C02总线试验程序-89s51" s 9AT24C02 bus testing procedures

用89C51，外接晶振，复位电路，二个数码管，二个按键，做一个电子秒表，具体要求为用按键起停电子表，可用按键设计倒计时时间(如10S，20S，60S),并启动倒计时功能,能用按键选择以上两功能之一-With 89C51, an external crystal oscillator, reset circuit, two digital tube, two buttons, making an electronic stopwatch, and specific requirements for the use button start-stop electronic watches, key design can be used countdown time (such as 10S, 20S, 60S), and start the countdown function, can be used for more than two buttons select one of the functions

ds1302和ds18b20和1602液晶显示，能显示日期，时间，和温度，并且附有详细的说明-ds1302 and liquid crystal display ds18b20 and 1602 showing the date, time, and temperature, and accompanied by a detailed description of

（1） 显示北京时间； （2） 能够校准时间； （3） 使用汇编语言； （4） 时、分、秒之间以及年、月、日间以小数点分隔； （5） 显示公历日期 （6） 能够校准日期 （7） 运动秒表 （8） 闹钟功能 （9） 整点报时功能 （10） 自动/手动进入休眠状态 -(1) shows that Beijing (2) to the calibration time (3) the use of assembly language (4) hours, minutes and seconds, as well as year, month, day to decimal separated (5) shows that the Gregorian calendar date (6 ) to the calibration date (7) Sports Stopwatch (8), alarm clock function (9) The whole point timekeeping function (10) Auto/Manual to enter hibernation

Develop an embedded system application by utilizing a timer module with interrupts to create some required cycles. You will try to configure the SFRs of PIC18F452 MCU to get the job done.