脉冲测速代码。在51单片机上使用。可用于电动机。

电子密码锁程序，两键输入，其中一个键累加，另一个键确认。密码正确锁打开（开锁指示灯亮）；密码错误锁关闭（关锁指示灯亮）；连续错三次则锁定键盘8秒并发出报警声。-Electronic code lock procedure, the two key input, one key additive, and the other button to confirm. The correct password to open lock (unlock indicator light) password error lock closure (Kuan-lock indicator light) consecutive wrong then lock the keyboard three times and issued eight seconds alarm sound.

ad转换,可以实现模拟量转换成数字量，利用单片机内部集成的魔术转化单元。-ad conversion

sd卡(驱动)工作原理分析，对驱动SB卡有很大帮助-sd card (driver) working principle analysis of SB card drivers are very helpful

USB主机方式的应用可以参考CH375的资料，与计算机连接的USB设备方式（或自己做U盘）可以参考CH372 的资料。如果是读写U盘并且用量较少或者是系统集成，关心快速入门并且简单易用，那么可以参考半成 -USB host mode the application can reference CH375 information, and computer-connected USB devices (or their own to do U disk) can refer to the information CH372. If it is to read and write U disk and the amount of less or systems integration, care and easy-to-use Quick Start, it can refer to semifinished

串口通讯实现发送的程序 MSP430单片机C语言 AIR-Serial Communication MSP430 realization procedures sent Singlechip C language AIR

/************************** 0 1 2 3 4 5 6 7 8 9 . CLR + - = CLR ***************************/ 用键盘扫描,数码管显示实现计算功能,能实现xxx.x任意正数的加减 运算,超过范围显0000,功能键如上-/************************** 0 1 2 3 4 5 6 7 8 9. CLR +- = CLR ***************************/ With keyboard scan, digital tube display of computing power, to achieve any positive xxx.x addition and subtraction Operation, significantly more than the scope of 0000, above function keys

是一些单片机的串口通信程序，用C语言编写。-Is the number of single-chip serial communication program, using C language.

NRF905芯片的C51接收子程序-NRF905 C51 chip receiver subroutine

能准确测量输入频率，配备相应的C语言程序。-An accurate measure of input frequency, with the corresponding C language procedure.

使用PROTEUS仿真的推箱子游戏,全汇编格式,通过按钮操作,1602显示-PROTEUS simulation using the Sokoban game, the entire compilation format, through the button operation, 1602 show