改程序实现了C8051F120混合信号片上系统32位乘法，提高了在C8051上实现乘法的精度，较少了计算误差...

前一阵子做了个IC卡读写程序，可以读写SLE4442系统逻辑加密卡的，本来想在网上找一个，没找到，自己写了一个，为了让后来人可以轻松一点，所以就奉献给大家：） 注释比较少（本人的坏习惯），看起来有点累，不过建议你在自己看之前先熟悉一下SLE4442的协议。 程序是经过测试的，在我的931上工作的很好，有什么问题，发信给我 Ploto_zhu@etang.com-done a while ago, IC card reader procedures, can read and write SLE4442 encryption system logic card, and they would like to find an on-line, could not find himself writing a view to the later can easily point and so on devoted to you :) Notes relatively small (my bad habits), looks a bit tired, but I suggest you look at before their first study SLE4442 agreement. Procedures are tested, in my 931 on the good work and what problems, I wrote to Ploto_zhu@etang.com

校园打铃系统，内带51单片机c语言程序和电路原理图以及PCB-Darlin campus system, with 51 single-chip microcomputer with c language programming and circuit schematics and PCB

凌阳061a单片机语音识别使用例程。包括两个基本语音识别例子可识别5条指令-Sunplus 061A routine use of single-chip speech recognition. Includes two examples of the basic speech recognition identifiable Directive 5

900MHZ高频头的控制参考程序和参考线路图.-high-frequency 900 MHz band first reference to the control procedures and reference the road map.

SN75176,用51系列的单片机，波特率为9600，串口方式1，发送数据-SN75176

atmega16L的LCD经典试验已经通过验证-atmega16L the LCD classic trials have been validated

该文件是基于51内核的单片机制作的MP3,内容包括原理图,源程序以及相关芯片介绍,敬请笑纳-The document is based on 51 core microcontroller production of MP3 players, including schematics, source code and related chipsets, please heart

sst39sf040 serial flash 读写程序-sst39sf040 serial flash reading and writing procedures

用于arm开发，keil开发环境-arm for the development, Keil development environment

利用此程序可以实现关于红外线的编码与解码-This process can be achieved using infra-red about the encoding and decoding