hex_bi

利用8253和8259芯片实现实时电子时钟的功能；利用8255控制七段数码管完成定时扫描显示。显示格式为xx时xx分xx秒，每隔1s，时间值改一次。按键SHIFT可选择时、分、秒，按键CTRL可对所选的时、分、秒进行加1，小时加至23后清0，分、秒加至59后清0。(Use 8253 and 8259 chip to realize the function of real-time electronic clock; use 8255 control seven segment digital tube to complete the timing scanning display. When the display format is XX, XX minutes XX seconds, every 1s, the time value changed once. Button SHIFT can choose time, minutes, seconds, button CTRL can be selected time, minutes, seconds added 1, hours added to 23 after 0, minutes, seconds to 59 after 0)

红外键值码LED显示,用于C51程序,解码遥控器编码 -IR key code LED display for the C51 process, decoding the remote control code

关于汇编的一百个例子,方便汇编初学者,程序已可以通过-On the compilation of 100 examples to facilitate the compilation of beginners, the program has been through

这时用汇编语言编写的GSM模块接口程序，适用于用GSM模块进行报警的场合。适用于与51系列单片机的接口。本程序经过测试和调试是成功的(At this time, prepared to use assembly language interface program GSM module for use GSM alarm module occasions. Applies to 51 series single-chip interface. This procedure has been tested and debugged is successful)

生成正弦函数表，然后保存在文件中，汇编程序通过读取文件，查表生成正弦信号。(Generating the sine function table, and then stored in a file, assembler by reading the file, look-up table generated sinusoidal signal.)

说明：  基于51单片机秒表的程序设计 1．设计目的： （1）利用单片机定时器中断和定时器计数方式实现秒、分定时。 （2）通过LED显示程序的调整，熟悉8155与8051，8155与LED的接口技术，熟悉LED动态显示的控制过程。 （3）通过键盘程序的调整，熟悉8155与矩阵式键盘的接口技术，熟悉键盘扫描原理。 （4）通过阅读和调试简易秒表整体程序，学会如何编制含LED动态显示、键盘扫描和定时器中断等多种功能的综合程序，初步体会大型程序的编制和调试技巧。 (Based on 51 single-chip programming stopwatch 1. Designed to: (1) the use of single-chip timer interrupt and the timer means counts seconds, minutes from time to time. (2) through the LED display adjust procedures, familiar with the 8155 and 8051,8155 and LED interface technology, familiar with the LED dynamic display of the control process. (3) through the keyboard adjust procedures, familiar with the 8155 with keyboard matrix interface technology, familiar with the keyboard scanning principle. (4) By reading and debugging the whole process simple stopwatch, learn how to prepare with LED dynamic display, the keyboard scanning and a variety of functions such as timers interrupt the General procedure, the initial experience of large-scale procedures for the preparation and debugging skills.)

PCI信息查询，汇编语言，基于8086系统，功能丰富-Electronic alarm clock, assembly language, based on 8086 system

利用循环谱相关法从高白噪声中检测识别出BPSK调制的直扩信号。(Detection and identification of BPSK modulated DSSS signals from high white noise using cyclic spectral correlation method.)

很实用的三极管资料，封装：TO-92,1.5A-very practical transistor, Compliant : TO-92, 1.5A

通过本程序，学习者可以使用自己的a51和C51程序T89C51CC01学习看门狗功能。