电路图和程序是正确的。如果问题可以去我的博客吨..

1、ps/2键盘输入，通过led显示ascii码 2、稍等1s可以在lcd上显示输入的字符 3、其中键盘上的backspce键是用来清屏的 4、当lcd上显示满字符时，在按下按键自动清屏，从第一行显示。-1, ps/2 keyboard input, through the led display ascii code 2, wait 1s in the lcd display characters input 3, which backspce keys on the keyboard was required to settle the screen 4, when the lcd display full of characters, the press the button automatically Qing-ping, from the first line of display.

一个利用ds1820进行温度采集的程序，单片机为c51-ds1820 use of a temperature collection procedures, c51 microcontroller

这是一个学习芯片的事例,AD9958 一个DDS芯片,里面是芯片控制程序-This is an example of learning chip, AD9958 a DDS chip, which is the chip control procedures

《单片机原理与实用技术》第1章-"SCM principles and practical technology," Chapter 1

WAVE6000，南京伟福的最新单片机开发环境-WAVE6000, Nanjing Wei Fu of the latest microcontroller development environment

MSP430x23x, MSP430x24x(1), MSP430x2410 MIXED SIGNAL MICROCONTROLLER.zip

本程序是功能是实现51单片机与PC机之间的通信，程序简单-this is to tell how to use 51 single chip controler to communicate with pc

这是一个BCD码的加法的实现程序..用途很广在单片机领域-This is a BCD addition to the realization of the procedure .. uses a wide area in SCM

用于12864液晶显示的驱动程序，非常好用，值得下载，移植简单-12864 for liquid crystal display driver, very easy to use, it is worth the download, easy transplantation

12864 18B20做温度计 内含有仿真 是PROUUE 的仿真-12864 18B20 contains a thermometer to do simulation is the simulation PROUUE