STC单片机实现对时钟芯片DS1307及128x64LCD的控制

BCD码波盘 -BCD code BCD Code odds odds

gprs协议实现-EDGE protocol

自己写的51接收遥控器解码，NEC、PHILIPS格式-himself wrote of the 51 remote control receiver decoder, NEC, Philips format

本系统分电压测量和信号产生输出两大部分，电压测量部分以模拟电路为主，配合放大模块、A/D转化模块、显示模块；通过凌阳单片机进行数据处理，在误差允许范围内显示测量电压值。信号产生以直接数字式频率合成器为核心，经过AT89S52对DDS芯片内部进行控制，使之输出标准正弦波形，利用编程实现频率预置、步进，达到电压输出频率的可调节步进。通过调试与测量完成了题目的基本部分和全部发挥部分的要求并有自己的创新。-Voltage measurement points of the system and the output of two major signals, voltage measurement circuitry to simulate the main part, with the amplification module, A/D conversion module, display module through Sunplus Single-chip data processing, in the range of error allowed shows the value of measuring voltage. Signal generated by direct digital frequency synthesizer for the core of the DDS chip AT89S52 after the internal control standards so that the output sine wave shape, frequency of use of pre-programming, step to the output voltage adjustable frequency step. Debugging and measurement, through the completion of the basic part of the topic and all the requirements to play a part and have their own innovation.

座机短信发送平台，LCM显示发送和接受号码显示源程序。子库函数定义-jet sent SMS platform, LCM revealed sending and receiving numbers indicate the source.- The function definition

ARM9200在LINUX2.4.19下的蜂鸣器驱动程序,经过验证,直接可以应用.-ARM9200 in under the buzzer LINUX2.4.19 driver, after verification, can be applied directly.

Using a matricial keyboard and a LCD in a microprocessor ColdFire.

Linux下的以太网驱动，很不错，内容挺多，支持嵌入式。大家交流用。-Ethernet driver under Linux, it is true that the contents of挺多to support embedded. Used to facilitate the exchange.

出租车里程计价器程序 此程序实现出租车智能计价功能同时实现语音发音功能其语音功能全用代码实现-Taxi mileage meter program implementation of this program a taxi smart pricing feature that enables simultaneous voice pronunciation feature of their voice in code to achieve full

目前国内有关数字信号处理的教材在讲解快速傅里叶变换（FFT）时，都是以复数FFT为重点，实数FFT算法都是一笔带过，书中给出的具体实现程序多为BASIC或FORTRAN程序并且多数不能真正运行。鉴于目前在许多嵌入式系统中要用到FFT运算，如以DSP为核心的交流采样系统、频谱分析、相关分析等。本人结合自己的实际开发经验，研究了实数的FFT算法并给出具体的C语言函数，读者可以直接应用于自己的系统中。--I implemented FFT algorithm in real number and provides a C function. Users could use it directly in their systems.