单片机与104键PS2接口标准键盘程序，用C语言编写。

此文件包括各种编码转换程序，比如：二进制到BCD 码转换、二进制到ASCII码转换-This document includes a variety of encoding conversion process, such as: binary to BCD code conversion, binary to ASCII code conversion

本例载波频率为20KHz，或载波周期为50μs。DSP晶振10MHz，内部4倍频，时钟频率为40MHz，计数周期为25ns。假设调制波频率由外部输入（1～50Hz），并转换成合适的格式（本例为Q4格式）。调制系数M为0～0.9。死区时间1.6μs。最小删除脉宽3μs。 主程序的工作是根据输入的调制波频率计算N、2N和M值。 -Example for the carrier frequency 20KHz, or carrier period is 50μs. DSP crystal 10MHz, internal 4 multiplier, the clock frequency of 40MHz, counting cycle 25ns. Assuming wave frequency modulation by external input (1 ~ 50Hz), and converted into an appropriate format (in this case for Q4 format). Modulation coefficient M is 0 ~ 0.9. Dead time 1.6μs. Delete the smallest pulse width 3μs. The work of the main program is based on input frequency modulation wave calculation of N, 2N and M values.

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lcd液晶显示汇编程序，其中只写出了字符T和t的显示，大家看一看就能够明白-lcd LCD compilation procedures, which only write the characters of T and t show that everyone can look at to understand

模拟德国六级轨道不平顺的程序，希望对大家有用！-German 6 Track Irregularity simulation program, hoping for all of us!

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C8051的汇编驱动程序，如果能看懂会给你带来很大的好处，学习的好资料.-The driver of C8051, it will bring you very big benfit if you will read it, it is very nice.

球赛计时计分器程序 AT89C51汇编语言-Match time points AT89C51 assembly language program

这是西安交通大学陶文铨院士课题组的SIMPLER源代码，可用于计算二维不可压缩流动传热问题，非常好用。

单片机实现键盘输入数码管显示。给sclk8个上升沿就可以控制一个8段数码管了，当移位寄存器满了后，给st一个上升沿，就可以显示数据了-SCM keyboard input digital tube display. To a rising edge sclk8 can control an 8-segment digital tube, and when the shift register is full, after a rising edge to the st, you can display the data of the