2PC与西门子S7-200 PLC组成的控制系统

AVR128显示部分，用12864作为显示的程序代码，已经调试通过(AVR128 display section, with 12864 as display the program code, have debugging through)

自己写的C8051F系列单片机的笔记，供初学者参考(Write their own C8051F series microcontroller notes, for beginners reference)

C51单片机8位LED左移显示变化数字实验例程(C51 single-chip 8-bit LED digital test routines left show changes)

本系统基于反馈控制思想，由交直流转换电路、DC-DC变换器、步进电路模块和显示模块4个模块电路构成开关稳压电源。交直流转换电路整流部分采用全波桥式整流电路形式，DC-DC变换器以TL494有主核心设计并加上简单滤波电路及RC放电回路所构成的回路控制器。它能把脉冲宽度变化的信号转换成与脉冲宽度成正比变化的直流信号，进而实现闭环单回路控制。由单片机控制 数字定位器X9241的电阻,进而控制输出电压。显示模块由LCD1602构成。 (Based on feedback control of the system of thought, from AC-DC converter circuit, DC-DC converters, stepper circuit module and display module 4 module circuit switching power supply. AC-DC converter circuit using full-wave rectifier part of the circuit form of bridge rectifier, DC-DC converter to TL494 have the main core of the design and add a simple RC filter circuit and discharge circuit posed by the loop controller. It can change the pulse width signals into changes with the pulse width is proportional to the DC signal, and thus realize the closed-loop single-loop control. By the single-chip microcomputer to control the number of locator X9241 resistance, thereby control the output voltage. LCD1602 constituted by the display module.)

基于nucleus操作系统的GPRS无线数据传输终端全套源文件。包括支持ARM7的BSP,操作系统，GPRS驱动，PPP协议栈，TCP/UDP/IP/TFTP协议栈和数据传输应用程序。这套成熟可靠，在产品中应用。还包含以太网驱动和文件系统(nucleus operating system based on GPRS wireless data transmission terminals set of source documents. Including support for ARM7 BSP, operating system, GPRS-driven, PPP protocol stacks, TCP/UDP/IP/TFTP protocol stack and data transmission applications. This is mature, reliable, product application. Drivers also includes Ethernet and documentation system)

AVR单片机串口测试程序,适用于ATmega16(the test of usart )

旋转LED的实现,实现用单片机控制电机转速，采用无线供电方式哦(Rotate the LED, achieving MCU control motor speed, the use of wireless power supply oh)

S3C2416裸机启动代码，用以后期引导裸机应用程序，主要实现时钟，内存，NANDFLASH，MMU的设置(Late S3C2416 bare-metal startup code, used to guide the bare-metal applications, mainly realize the clock, memory, NANDFLASH, MMU Settings)

51单片机的一些例程，包括led、数码管、点阵、sd等等(51 examples)

AVR单片机I2C接口AT24C16 EEPROM(AVR microcontroller I2C interface AT24C16 EEPROM)