USB_2.0.pdf

240128液晶驱动的测试程序，c语言编写(240,128 LCD driver testing procedures, c language)

99秒马表，在Proteus设计两个数码管动态显示及一个键盘SP。在ucos下结合keil完成开始时，显示“00”，第1次按下SP后就开始计时。 第2次按SP后，计时停止。第3次按SP后，计时归零。 (99 seconds stopwatch, two in the Proteus design dynamic digital tube display and a keyboard SP. Keil in combination ucos completed under the beginning of the show " 00" , 1st timer after pressing the SP. 2nd by SP, the time to stop. The 3rd by the SP, the time zero.)

说明：  本系统以单片机AT89C51为主体,由芯片插座、独立按键、74HC573驱动8位数码管显示、5V直流电源控制模块等组成。根据数字集成芯片的引脚特性以及集成芯片的真值表编写检测程序。该系统能完成14脚以内常用TTL74系列数字集成芯片的功能测试。(This system is the main body of the single-chip microcomputer AT89C51, the chip socket, independent buttons, 74HC573 Driver 8 digital control, 5V DC power control module and so on. According to the characteristics of the digital chip and the chip s true value, the program is written in the chip.. The system can complete the functional test of the TTL74 series digital IC chip in 14 feet.)

说明：  多路温度测试模拟,使用VB写的，只是模拟(Many way template test source)

这是单片机的安装源程序，这是第一次上传的单片机资料，希望能对大家有用(This is a single chip installation source, this is the first single chip data upload, hope it' ll be useful)

通过反转法循环扫描矩阵键盘，并通过数码管显示数据(By inversion method cyclic scan matrix keyboard, and through the digital display data)

单片机程序，关于串口通信方面的。计算机通过串口和单片机通信。单片机数码管显示数据。(SCM procedures, on aspects of serial communication. Computer and the microcontroller through the serial port communication. Single-chip digital display data.)

C写的ArcSDE连接添加Feature的类(Add ArcSDE Connection C written in class Feature)

说明：  基于MODBUS协议的单片机通信系统，上位机+下位机(MODBUS Protocol-based communication system microcontroller)

智能车驱动程序，利用ULN2003A作为隔离，控制BTS7960驱动芯片，实现驱动，程序有限幅，反向等。(Smart car drivers, use ULN2003A as isolation, control BTS7960 driver chip, drivers, programs limiter, reverse and so on.)