arm7定时器中断方式，可以通过中断方式实现定时的功能

单个数码管循环显示０～９，在KEILC环境下编译调试成功-A single cycle of digital tube display 0 ~ 9, in the circumstances KEILC successful compiler debugging

一个用sja1000控制器的can源程序-sja1000 using a controller can source

PIC4455 ADC源代码，用于PICC18编译器，PIC16系列不适用

嵌入式系统已经广泛应用于各个科技领域和日常生活的每个角落，由于其本身的特性，使得我们很难发现它的存在。甚至一些从事嵌入式系统开发的科技人员也只知单片机，不知道嵌入式系统。本节从嵌入式系统的定义开始，阐述嵌入式系统的含义、特点等，以使读者加深对嵌入式系统的理解。 -Embedded systems are widely used in various fields of science and technology and everyday life in every corner, due to its own characteristics, making it very difficult for us to discover its existence. Embedded systems and even some involved in the development of scientific and technical personnel are also only single-chip, embedded systems do not know. This section from the beginning of the definition of embedded systems, embedded systems on the meaning, characteristics and so on, in order to enable readers to deepen their understanding of embedded systems.

从虚拟终端输入8个任意数据，通过串口传送给单片机的led_buf缓冲区，并在8个led上显示；按回车键对led_buf缓冲区中的数据进行由小到大排序，排序结果在led上显示。-From the virtual terminal eight arbitrary input data, through the serial port send buffer led_buf MCU and 8 led display led_buf press Enter to buffer the data from small to big sort, to sort the results in the led display.

通用的餐饮收费系统:其主要技术是通过计算机串口与IC卡相关设备进行数据交互.-Common food and beverage charges system: Its main technology is the computer serial port and IC card relevant equipment data exchange.

实时时钟芯片DS1302采用串行接口，只需3根引脚便可以完成操作，其使用非常方便。这里采用AT89S52单片机作为外部微处理器，来对DS1302进行控制-Real-time clock chip DS1302 serial interface, only three pins will be able to complete the operation, its use very convenient. AT89S52 microcontroller used here as an external microprocessor to control of the DS1302

我最近找的一些关于ADS1252的资料,还有源码,我已经编译过啦-Recently, I find some of the information on the ADS1252, and the source code, I have compiled Matata

51单片机IIC驱动，包括IIC时序的驱动代码，用C语言编写。-51 Single-chip IIC driver, including the timing IIC driver code, using C language.

摩托罗拉单片机的液晶LCD显示的C语言程序-Motorola MCU LCD liquid crystal display ........... C Programming Language