插在usb上使用的声卡的原理图,器件少,简单实用

采用C51编写的基于C8051F020单片机的电机测速使用程序。-using C51 prepared by the C8051F020 Motor gun procedures.

Electronic Voltimeter with assembly for motorola with three 7 segment display

周立功公司开发的ARM教程，要比较详细的材料轻伤周立功网站下载-Week Ligong ARM Guide developed to more detailed material slightly Week Ligong website

基于51单片机的发声程序，初学者简单应用-51 MCU-based voice process, beginners a simple application

51单片机驱动128X64液晶的程序。里面包括显示16X16点阵字符、显示8X16点阵字符、显示光标、clr光标等子程序。用C51编写-51 microcontroller drives the built LCD procedures. They show audio Character, character dot-matrix display 8X16 show that the cursor, such as the cursor clr subroutine. Prepared with C51

一个用单片机控制饲服电机的程序，采用ＯＭＲＯＮ光纤感应器实现的剪纸机，已通过调试-By feeding a single-chip microcomputer to control the electrical service procedures, the use of fiber-optic sensor OMRON realize the paper-cutting machines, has passed through debugging

D12与电脑通过USB单片机通信的程序，开发人员可以参考

8051设计延时程序说明。-8051 design description of the procedures.

ARM7系列单片机的,键盘输入与LED扫描人机对话程序-ARM7 MCU series, keyboard input and LED scanning procedures man-machine dialogue

///*** *** *** * //一、程序说明： //1, 24LC02器件地址是1010000R/W. //2, 数组写入24LC02采取页写方式. //3, 数组code从24LC02读出时采取自由读方式. //4, 采用4.00M晶体。 //5，采用软件I2C。 //二、硬件连接： //1， SDA------->23 pin.(当然你可以任意选择脚位） //2, SCL------->18 Pin.(当然你可以任意选择脚位） //3， PORTB----->数码管的段输出 //4， RD4，RD5，RC6，RC7------->数码管的位输出(数码管为共阴极） -///*******************// A description of the procedures:// 1, 24LC02 device address is 1010000R/W.// 2, write an array to take 24LC02 page write mode.// 3, the array read out the code from the 24LC02 to take a free read.// 4, using 4.00M crystal.// 5, using software I2C.// Second, the hardware to connect:// 1, SDA-------> 23 pin. (Of course, you can choose to pin)// 2, SCL-------> 18 Pin. (Of course You can choose pin)// 3, PORTB-----> digital tube output segment// 4, RD4, RD5, RC6, RC7-------> digital pipe-bit output (digital tube for a total of cathode)