data-collection-with-51-top-to-down

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.)

合泰单片机，大学生单片机竞赛组委会提供的，必须使用该单片机开发的作品才能评选(holtek mcu )

毕业设计中等精度频率计8051IP核的C语言代码，功能是计算频率，脉宽，相位。还有控制LCD12864(Graduate design Medium precision frequency meter the 8051IP nuclear C-language code, the function is to calculate the frequency, pulse width, phase. As well as control LCD12864)

仿真机床切割,可生产可编辑的轨迹代码,方便操作.(Simulated machine tool cutting, can produce editable trajectory code, easy to operate.)

说明：  一个特别好的modbus从机扫描程序，可以以RTU或ASCII方式通信以此来检验下位机。(A particularly good modbus slave scanner can communicate with RTU or ASCII way to test this lower position.)

带参数子程序控制LED闪烁，适合单片机初学者(Subroutine with parameter control LED flashes, suitable for beginners SCM)

Fei transmission similar to the LAN chatting transmission procedures, regardless of the server and client, he can take full advantage of the LAN network resources, transmission speed over 10MB/s, but is aesthetically pleasing user interface

通过51单片机串行转并行，扩展IO口，实现四个步进电动机的控制。(By 51 microcontroller serial to parallel IO expansion port, to achieve four stepper motor control.)

direct sparse solver for linear equations

RAID卡的测试程序，写的不好哈，请大家原谅，(RAID card test procedures and writing bad Kazakhstan,)