一个简单的利用查表法的反正切和正、余弦函数，在处理速度不快的单片机编程中，这是一个使用的方法。...

本书以采用89C52为核心的仿真实验板为主线，充分发挥该实验板不需仿真器就可在线调试和在线下载、成本低廉的特点，采取边练边学的指导思想，合理、有机地将单片机的原... -Book to the use of 89C52 as the core simulation board the main line, give full play to the board without emulator can be downloaded online debugging and on-line, low cost, take the side of practice to learn the guiding ideology, reasonable, will be organically the original single-chip ...

060资料,初级学生可以看看！学习060单片机-060book

RS-485接口具有较强的抗干扰性，数据传输的距离较远，在一些应用中常常需要把RS-232标准的信号转换为RS-485的标准信号进传输。图中所示电路允许数据在RS-232/RS-485这两个不兼容的串行数据接口间传递。传输速度为480波特时，传输距离可达1750米。图中双RS-232收发器IC1将主机(PC)输出的RS-232电平转换为TTL电平，驱动高速RS-485收发器IC2 的输入，倒相器使IC2、IC3在受到起始位时被激活。-RS-485 trying to lay all the thoroughly bleed at the nose picking up the birthday 扰 fern cavity 强 ， Chu Huai basin cavity beat escapement for the birthday candle远Now ， Which instance, using Beckmannia中

一个基于stc89s52 nRF2401的demo代码，-Stc89s52 nRF2401 based on the demo code,

用STC89系列单片机的通用IO模拟SPI通信源码-STC89 Series MCU with generic IO simulation SPI communication FOSS

好东西共享给大家,液晶显示的1502的,单片机51系列的-something good for everyone to share, the liquid crystal display of the 1502, the 8031 Series 51!

crc 51 单片机计算程序，保证51利用串口通讯的可靠传输-crc 51 single-chip computing

本程序实现了对MOTOROLA08AB32单片机EEPROM的访问，可自动配置波特率，实现了对EEPROM的读、写和擦除操作。-This procedure MOTOROLA08AB32 realize single-chip EEPROM of the visit, can automatically configure the baud rate, to realize the EEPROM read, write and erase operations.

Michael J. Pont 的嵌入式系统编程讲座2， 8051CPU，keil开发环境。英文的，通俗易懂。-Michael J. Pont Embedded Systems Programming Lecture 2,8051 CPU, keil development environment. English, user-friendly.

MCS-51单片机实用子程序库（3），WORD文档-MCS-51 microcontroller practical Subroutine Library (3), the Word document