5110-1

模数转换器AD0809例程，通过该例程可掌握AD0809的基本使用方法(AD0809 ADC routines, the routines can be mastered through the basics of using the AD0809)

单片机电缆通断检测系统，可以实现电缆短路和断路(SCM off cable detection system, the cable can short-circuit and open circuit)

生成PWM波的c程序，需要的可以自己下载查看(A C program for generating PWM waves)

optimize ADX range usedn in amiborker optimization

CD4051/CC4051是单8通道数字控制模拟电子开关，有三个二进控制输入端A、B、C和INH输入，具有低导通阻抗和很低的截止漏电流。(CD4051/CC4051 is single channel 8 digital controlled analog electronic switch, there are three binary control input A, B, C and INH input, has low conduction resistance and very low by leakage current.)

说明：  读写SD卡的头文件，MMC，不含fat文件系统。(Read and write SD card.)

本文介绍一种利用单片机本身所提供的串行通讯口，采用自定义串行通信协议，加上总线驱动器如MAX481、MAX483、MAX485、MAX487等组合成简单的RS－485通讯网络，完成单片机间的多机通讯。(This article describes a serial communication port provided by the microcontroller itself, the custom serial communication protocols, coupled with the bus driver, such as the MAX481, MAX483, MAX485, MAX487, combined into a simple RS-485 communication network, complete single-chip between themulti-machine communication. )

上位机，与51单片机进行通信，将从单片机发送过来获得的信息显示在显示界面上。(PC, with 51 single-chip communication, sent from the information obtained from the microcontroller is displayed on the display screen.)

AES128/196/256 加解密源码，可实现ECB模式加密，HEX输出。密码及明文没有补齐功能，需手动补齐。无需特殊库文件，适合单片机使用。已测试，可正常使用。(AES128/196/256 encryption source code, can achieve ECB mode encryption, HEX output. The password and the plaintext without the need to manually fill up function. No special library files, suitable for single use. Has been tested, can be used normally.)

根据设计任务书的要求，本次设计为110kV 变电站电气一次部分初步设计，并绘 制电气主接线图及其他图纸。该变电站设有两台主变压器，站内主接线分为110kV、 35kV 和10kV 三个电压等级。各个电压等级分别采用单母线分段接线、单母线分段带 旁母接线和单母线分段接线(From the guide of engineering design assignment, we have to design primary power-system of 110kV substation and draw main electrical one-line diagram and others. There are two main transformer in the substation in which main electrical connection can be divided into three voltage grades: 110kV, 35kV with 10kV.It deposits sectionalized single bus bar scheme, sectionalized single and transfer bus bar and sectionalized single bus bar scheme per grade.)