电路图和程序是正确的。如果问题可以去我的博客吨..

24C02的读写操作,用汇编语言完成,在开发板上运行正常-24C02

vetess交换机管理软件，支持CLI管理，WEB管理，SNMP等各种常用管理功能-vetess switch management software, supports CLI management, Web management, SNMP management and other commonly used functions

基于8051的高精度的秒表汇编程序，从0到60秒，有复位，暂停，累计功能。附加protues连接图-Based on the 8051 compilation of high-precision stopwatch program, from 0 to 60 seconds, a reset, pause, the cumulative function. Additional protues connection diagram

TLC5618 D/A 输出-Programmable DoubleChannel12-bit DACTLC5618in D/A output

单片机定点运算子程序库，源程序经KEIL测试ok.-SCM- point computation subroutine library, source testing by KEIL ok.

C51汇编必做试验7 -- 通过串行口与PC机通信（上位机控制的必备）-C51 compilation of tests must be done 7- through the serial port with the PC, communications (Host Computer Control Essential)

ARM I2C 通讯软件(中断方式）,通过此程序，可以方便的完成CPU 和其他芯片之间的I2C通讯。-I2C communication with ARM (INT mode)，by it, could do communication between CPU and other chip.

用L298作为驱动器，控制两相混合式步进电机。 按键从上至下分别为减速，加速，正转，反转，停止。 具体参数还没有设定过。速度有些慢，加速按2下有效，然后就不能再快了。 转速输出是按照最小系统版的数码管写的。电路图里太麻烦就没画了。-Using L298 as the drive to control two-phase hybrid stepping motor. Buttons from top to bottom respectively, deceleration, acceleration, are being transferred, reverse, stop. Specific parameters have not yet been set. Some of the slow speed, speed up by 2, effectively, and then can not be faster. Speed output is in accordance with the minimum system version of the digital tube wrote. Circuit where not too much trouble drew.

对液晶屏的显示驱动，运用中断对显示实时控制 -On the LCD screen of the display driver using interrupt the display of real-time control

单片机高等学校教材-SCM College Books