Modbus主站Microchip PIC

20ma的电流环通信回路仍应用于一些远程通信的场合，本文为其实现过程。-20ma current loop

Eeprom操作, 可对EEPROM进行相应的读写等操作-eeprom operation

zlg7290 i2c 演示程序； 演示周立功7290芯片的功能-zlg7290 i2c Demonstration Program; Zhou, who demonstrated the functions of 7,290 chips

实现can总线的硬件布线图，在protel上直接打开即可，按此图的实物板已制出，可确保无误。-The realization of the hardware can bus wiring diagram, in Protel can directly open, this physical map has already been produced to ensure accuracy.

Microchip Technology announces new families of USB capable microcontrollers covering 8-, 16-, and 32-bit architectures. -Microchip Technology announces new families of USB capable microcontrollers covering 8-, 16-, and 32-bit architectures.

该程序比较好用容易修改，是一个单片机应用类的一个很好的程序。-Comparison of the program easy-to-use changes is a single-chip applications of a good type of procedure.

P89CXX编程器控制CPU接收和控制程序-P89CXX Programming Control CPU to receive and control procedures

关于51单片机DS18B20的驱动程序，编译过，可以直接使用。-About 51 Singlechip DS18B20 driver, compiler, and can be used directly.

4*4矩阵键盘（查表法） （C51环境）-4* 4 matrix keyboard (look-up table) (C51 environment)

简易电子琴的设计 一、 设计题目： 设计一简易电子琴，要求能够发出1、2、3、4、5、6、7等七个音符。 使用元件：AT89C51、LM324，喇叭，按键等 二、 设计目的 （1）能够对电子电路、电子元器件、印制电路板等方面的知识有进一步的认识，独立对其进行测试与检查。 （2）熟悉8051单片机的内部结构和功能，合理使用其内部寄存器，能够完成相关软件编程设计工作。 （3）为实现预期功能，能够对系统进行快速的调试，并能够对出现的功能故障进行分析，及时修改相关软硬件。 （4）对软件编程、排错调试、焊接技术、相关仪器设备的使用技能等方面得到较全面的锻炼和提高。-simple design of a flower, a design : a simple flower design, request, sent seven notes. Use Element : AT89C51, LM324, speakers, such as two keys, designed (a) to be able to electronic circuits, electronic components, such as printed circuit boards with the knowledge to further understanding of its independent testing and inspection. (2) familiar with the 8051"s internal structure and function and the rational use of its internal registers can be completed software programming design work. (3) To achieve the desired functionality, the system can quickly debugging, and the right to function failure analysis, the timely revision of the related hardware and software. (4) The right software programming, debugg