实现记时和日期显示功能的c语言程序

用2407控制三相交流电机的程序,c语言-with 2,407 three-phase AC motor control procedures, language c

8259中断实验,在DVCC-598实验箱上进行,中断信号为按下开关时产生的上升沿 8253发声程序.-8,259 interruption experiments, the DVCC- 598 experimental tank, interrupted signal? Switch to the rising edge 8253 audible procedures.

利用汇编语言实现绘图功能，包括圆、正方形、三角形、直线。还可以用颜色、运动、汇编语言实现绘图功能，包括圆、正方形、三角形、直线。还可以用颜色、运动、汇编语言实现绘图功能，包括圆、正方形、三角形、直线。还有颜色，动作，

16F873数字钟程序 -16F873 digital clock procedures 16F873 digital clock procedures

040头文件，适用于AM系列的很多FLASH使用-040 documents

一、 使用键盘显示接口芯片8279接收按键键值，并在七段数码管上显示出来，通过判断键值进入相应音乐播放处理程序。在音乐播放程序中，使用定时器/计数器8253的计数器2，使其工作在方式¬ ¬ 3―方波发生器，通过查表依次取出乐曲频率值送入计数器作为计数初值，经out2输出方波，驱动扬声器发出不同频率的声音，在每个音阶之间加入相应的延迟时间，即实现了音乐的播放。-First, the use of a keyboard display interface chip receive keys keys 8279, and Seven-Segment LED display, through to determine the corresponding music player keys to enter the treatment program. Procedures in the music player, use the timer/counter 2 counter 8253 to work in the way ? ? 3- square-wave generator, followed by out music through the look-up table values into the counter as a frequency count of the initial value, the output side out2 waves, driven loudspeakers of different frequency sound, in between each scale by adding the appropriate delay time, namely, the realization of the music player.

这是一个倒计时器，有点缺陷，需要改进，因为我是一个初学者-This is a countdown device, a little flaw, the need to improve, because I am a beginner

两个经典程序：显示系统时间，转换（大小写字母转换、二进制/八进制/十进制/十六进制间转换）-two classics : Display System, the conversion (case-insensitive conversion, binary/octal/decimal/hexadecimal switch)

51交通灯设计用74LS273作为输出口，带汇编程序，电路图。-51 traffic lights designed for use 74LS273 as the output port with assembler, circuit diagrams.

将存于DAT1开始的1个8字节BCD相加,结果放在SUM.考虑溢出.-will be stored in the DAT1 began an eight-byte BCD together, the results on SUM. Consider spills.