Using assembly language to achieve a digital frequency meter. Experiment has alr...

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汇编写的遥控接收处理程序，可放心使用的啊-Compilation of written procedures deal with the remote control receiver, can rest assured that the use of ah

这个源码的CPU为PIC16C54，为子节约成本采用端口复用。-the source for the CPU PIC16C54 to adopt cost-saving portal reuse.

用89C51，外接晶振，复位电路，二个数码管，二个按键，做一个电子秒表，具体要求为用按键起停电子表，可用按键设计倒计时时间(如10S，20S，60S),并启动倒计时功能,能用按键选择以上两功能之一-With 89C51, an external crystal oscillator, reset circuit, two digital tube, two buttons, making an electronic stopwatch, and specific requirements for the use button start-stop electronic watches, key design can be used countdown time (such as 10S, 20S, 60S), and start the countdown function, can be used for more than two buttons select one of the functions

8051对时钟芯片DS1302和液晶LCD1602的控制，在LCD上显示时间，当前的时间。-8051 pairs of clock chip DS1302 and LCD1602 LCD control, in the LCD display time, the current time.

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win32 pe 文件编程：文件加密.rar -programming document : document encryption. Rar

BCD转HEX的51单片机原代码，已经在AT89C51开发台平上调试通过了-BCD to HEX 51 Singlechip the original code has been developed in Taiwan Ping AT89C51 debugging adopted

实现高级电子琴的程序，并实现若干扩展功能。 基本功能：用8257键盘输入对应的七个音阶，通过实验箱的喇叭发出声音，并通过七段数码管显示输入音阶； 扩展功能：1、录音：记录所弹奏曲目 2、放录音：任意时刻重放最新记录曲目 3、在程序中可预设一曲目，按一键实现播放该曲目。 4、在播放录制曲目或预设曲目时，按8279键盘上任意键可以暂停播放，再按一次从暂停处继续播放。 5、程序运行时有友好的用户介面 -Realize high-level organ of the process and realize a number of extensions. Basic functions: keyboard 8257 corresponds with the seven scale, through experimental sound speaker boxes, and through Seven-Segment LED display input scale the expansion of functions: one, sound recording: Record the playing pieces 2, released recordings: any time replay music 3-to-date records, in the proceedings may be the default one track, according to realize one key to play the tracks. 4, recording tracks in the player or the default program, press any key on the keyboard 8279 can pause playback, press once again to continue from the suspended players. 5, is running friendly user interface

用汇编语言编写音乐演奏程序。具体要求如下： 程序运行在屏幕显示第一界面如下： A my piano B my music X exit -With the music program written in assembly language. Specific requirements are as follows: program running on the first interface screen is as follows: A my piano B my music X exit