单片机计算器,可计算多位小数点的+

单片机89c51对usb操作的全过程,初始化，读写-SCM 89c51 right usb operate the entire process, initialization, reading and writing

包括了源代码 keil工程 DXP电路图 和自制文档说明-Including the source code for keil project DXP circuit and self-documentation

串行大容量存储器的c51 读写源程序特点：占用io口线少，缺点：读写时间比并行时间长-Serial large memory read and write the source decoder features : io occupied mouth lines, shortcomings : reading and writing than parallel long time

C51单片机控制系统代码升级程序通讯协议。-C51 single-chip control system communication protocol code upgrade process.

单片机 2832D/A转换 汇编源程序

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《多功能电能表通信协议》补充文件（修改），DLT-645-2007规约-" Multi-function Watt-hour meter communication protocol" supplementary document (revised), DLT-645-2007 Statute of the

1602液晶显示程序，适用于电子初学者，控制方面的内容很容易理解的-1602 LCD procedures applicable to electronic for beginners, control the content easy to understand

MB90092文件，富士通MB90092的驱动程序 -MB90092 paper, Fujitsu MB90092 driver

本程序又是一个单片机的简单例程，含电路图及C程序，可参考-This procedure is a simple and routine single-chip, including circuit diagrams and C procedures, can be found! !