ch451的使用，遇到问题可以参考 做spi驱动

ah 209型通用读卡器驱动程序源码，ic卡，光电卡，隐形光电卡通用读卡器程序-ah 209-based driver-source general-purpose reader, ic card, photoelectric cards, stealth photoelectric reader program using cartoons

89S52 单片机 + 74HC595 + 组成的8X8 LED 点阵驱动显示程序，Keil C环境编写，带显示字符压缩／解压源／显示／代码。-89S52 composed of lattice-driven 8X8 LED display program, Keil C environment preparation, showed a band of characters compression/decompression source/Display/code.

用51单片机控制RTL8019AS实现以太网通讯,不错的东西，有需要的就下吧-MCU control with 51 RTL8019AS Ethernet communications, the good things that are needed on the next it

PCA CEX0为高速输出模式PCA CEX4 捕捉模式 测试程序-PCA CEX0 for high-speed output mode to capture mode PCA CEX4 test procedures

12864LCD显示控制 可以显示图形和动画-12864LCD display control can display graphics and animation

本程序主要是51单片机的应用和dac1230的接口应用-This procedure is the application of single-chip microcomputer 51 and the interface application dac1230

本程序可以支持SLE4442、SLE4428、FALSH、CPU卡-this program can support SLE4442, SLE4428 logic, FALSH, CPU card

采用直流电机测速单元模拟出租车速度，通过A/D转换进行速度采样，利用单片机的定时器/计数器定时和计数，用LED数码管或LCD显示总价和时间，并通过键盘进行单价设定及时间显示，键盘功能自行定义。-DC Motor Speed modules using simulation taxi speed, through the A/D conversion speed of sampling, the use of single-chip timer/counter timing and counting, with LED digital tube or LCD display the total price and time, and through keyboard Price settings and time display, keyboard function on its own definition.

to get parameters of dynamic regression

51单片机开发与应用技术详解（珍藏版）光盘中源代码 《51单片机开发与应用技术详解(含光盘1张)》全面详细地讲述了单片机的原理、编程指南及应用案例，其中51系列单片机的编程部分是《51单片机开发与应用技术详解(含光盘1张)》的重点。《51单片机开发与应用技术详解(含光盘1张)》分为5篇38章。首先介绍了51系列单片机的开发概述及单片机的基本结构，接着介绍了单片机的汇编程序设计语言，然后介绍了单片机C51语言的程序设计，随后结合单片机的指令系统及各个功能部件详细讲解了单片机的编程操作，以及单片机硬件资源的仿真和程序调试。《51单片机开发与应用技术详解(含光盘1张)》最后还给出了在各个领域中常用到的一些典型案例，供读者在学习和工作中参考。 《51单片机开发与应用技术详解(含光盘1张)》知识点覆盖全面、结构安排紧凑、讲解详细、实例丰富。对于51系列单片机的初学者，通过《51单片机开发与应用技术详解(含光盘1张)》可以快速掌握单片机的程序设计。《51单片机开发与应用技术详解(含光盘1张)》对具有一定开发经验的设计人员，也有很好的参考价值。- 51 MCU Development and Application of Technology Xiang Jie (Limited Edition) CD-ROM Source Code "51 MCU Development and Application of Technology Xiang Jie (including CD-ROM 1)" fully explain in detail the principles of the MCU, programming guide and application of case in which 51 series microcontroller programming part "51 single film machine development and application technology Xiangjie (including CD-ROM 1) "focus. "51 MCU Development and Application of Technology Xiang Jie (including CD-ROM 1)" is divided in