电子图书《华中理工大学出的C51教材》，很不错的。

我的89S52设计作品之一：基于89S52单片机的数值电压表：该电路采用MAX187高精度A/D转换器，采用串行输出，测量范围直流0-20伏，使用1602LCD液晶模块显示，使用了双积分电路的原理.-One of my design work 89S52: 89S52 microcontroller-based voltmeter values: the circuit with MAX187 high-precision A/D converter, serial output, measuring range 0-20 volts DC, using 1602LCD LCD module shown that the use the principle of double integral circuit.

ISD_调试范例,nRF9E5的C语言编程.-ISD_ debugging example, nRF9E5 the C language programming.

电机调速的控制程序，你可以通过这个程序来设定参数，通过反馈就可以控制速度了啊！-of motor speed control procedures, you can use this procedure to set parameters, feedback can control the pace of their ah!

周立功公司的C51 CANBus开发套件，可应用于CAN BUS的底层驱动开发-the C51 CANBus development kit that can be applied to the bottom of the CAN Bus Driver Development

并口方式点亮12864规格的液晶显示器，显示位置可调-12864 standard parallel port mode lit LCD display, adjustable display position

PIC单片机驱动TCS230 TCS230可以辨别颜色,广泛用于各种领域-PIC microcontroller-driven TCS230

IR识别程序,由INT0输入.适合51单片机.-IR identification procedures, INT0 input. MCU for 51.

nR24L01_EVB开发板试验接口初始化及模块读写程序-nR24L01_EVB development board initialization and test interface module to read and write procedures

《51系列单片机高级实例开发指南》一书的CAN总线的C51源代码-"51 MCU Development Guide Senior example," a book of CAN Bus C51 source code!

AT89c52单片机六路抢答器汇编语言文件-AT89c52 SCM six road Responder assembly language documents