周立功ZLG7289 驱动原代码

IC卡购电软件实现，可以参考代码的源程序-IC card software realize the purchase of electricity, you can reference the source code

PCF8563T读写功能程序（原创）-PCF8563T read and write capabilities (original)

AD5933评估板下位机程序（keil C）和上位机程序（VB）-AD5933 Evaluation procedures under the plan (keil C) and PC (VB)

I2C总线基本操作函数,及几个对I2C总线接口器件24C04操作的函数。 -I2C bus basic operation function, and several of the I2C bus interface device to operate a function of 24C04.

C8051F040 t3可调频率方波输出例程-C8051F040 adjustable frequency square-wave output routines

可以红外遥控的渐亮白炙灯(PIC12F629），喜欢的请下载，这又是一个实用又有趣的小制作。-Infrared remote control can be gradually brightening light Sunburn (PIC12F629), like the download, this is a practical and interesting production.

TINI平台可提供设计IP网络继电器所 需的TCP/IP栈和本地控制,Java运行环境可以大大降低设计-TINI platform will provide IP network design needed to relay the TCP/IP stack and local control, the Java runtime environment can greatly reduce design

六个数码管加ARM7,KEIL环境的C和ASM程序-Six digital tube plus ARM7, KEIL environment procedures C and ASM

程序能够实现将十二位的二进制数5V对应fffH变换成一路0~5V的电压。 精度方面：在使用时上下波动范围大约是0~2fH能保证高位寄存器准确； 调试过程中遇到了一系列问题：（1）p0口的使用需接上拉电阻，内部没有带电阻；（2）调试的过程最好使用单步运行，以便于察看寄存器的内容；（3）对系统板不熟悉，一些硬件方面容易出问题，像口连接，电源、地的连接。（4）直流电源使用不准确，内部的各个电源输出是独立的，需要共地。 -procedures to achieve 12 to a binary number 5V counterparts fffH transform all the way into the 0- 5V voltage. Accuracy : the use of fluctuating ranges of 0 ~ 2fH can guarantee accurate high register; debugging process encountered a series of questions : (1) p0 I need to connect to the widening use of resistance, with no internal resistance; (2) the process of commissioning the best use of single-step operation, in order to inspect the contents of Register; (3) The right not familiar with the system board, Some hardware problems are likely to occur, such as connectors, power, and connectivity. (4) DC power supply use of inaccurate, all within the Power output is independent, to the total needs.

MCS―51单片机系统扩展 简单的并行接口由数据寄存器和少量的控制电路组成，暂存传送的数据。以锁存器、缓冲器为主要芯片，稍加控制都可以作为简单的并行接口.-MCS-51 single-chip microcomputer system to expand a simple parallel interface from the data register and a small number of control circuit components, temporary storage of data transmission. To latches, buffers as the main chip, a little control can be used as a simple parallel interface.