C51库只提供长整形乘法，对于超过长整形的计算只能自己编辑软件。...

这是一个单片机与MFRC522通信的程序，采用C语言编写。-This is a single-chip microcomputer with MFRC522 communications procedures, the use of C language.

一款RENESAS单片机实现串口通讯的实例。包含头文件，可直接使用。-RENESAS realize a single-chip serial communication example. Contains the header files can be used directly.

51的参考程序，针对初学者参考使用，了解51很有帮助-51, reference procedures, reference for beginners to use, very helpful to understand 51

51写的拼音输入法-51 write phonetic input method

介绍zlg7290的，很详细，并且附带了实例程序。很好用-Zlg7290 introduction and very detailed, and comes with sample programs. Good use

AVR,系列单片机MEGA48应用例程,包括原理图,代码基本包括全部资源的配置应用.-AVR, the series microcontroller MEGA48 application routines, including drawings, code includes all the resources basic configuration application.

直接数字频率合成（DDS）程序,使用adc9851芯片-Direct Digital Synthesis (DDS), the use of chip adc9851

ma12864的开发程序能够很好的使用，您可以试试看，如果可以的，就-ma12864 the development of procedures to good use, you can give it a try, if possible, on the

文章借助系统模型，阐明了GSM模块收发短信的基本概念以及串口控制SMS的基本原理。详细介绍了单片机控制GSM模块工作的软件实现过程，对对怎样用单片机控制GSM模块收发短信进行了探讨，也对程序设计的主体思想作了较为细致的分析。-article with the system model, a GSM transceiver module SMS the basic concepts and serial control of the basic tenets of SMS. Details of the MCU control of the GSM module software process of how to use SCM control GSM transceiver module for the SMS study and design of the main procedures were thinking more detailed analysis.

CRC16，C语言运算源码，包括四种算法，直接计算法，半查表法，全查表法，双8位表全查表法，适用于工业控制领域校验通讯数据使用，和MODBUS数据校验，在对不同的系统资源的要求环境下，采用不同的算法-CYXLIC REDUNDANCY, C language source computing, including four algorithms, direct calculation method, semi-look-up table method, the whole look-up table method, dual eight-wide table look-up table method, applied to the field of industrial control the use of calibration data communications and MODBUS calibration data in different systems of the requirements of environmental resources, mining different algorithms