1、用8255的A口驱动六个七段数码管（LED）的字段，C口驱动六位七段数码管（LED）的位控端，右侧两位显示分值，左侧两位显示秒值。 2、段数码管采用动态...

Fortran 的矩阵求逆程序-Fortran the matrix inversion process

USB-FM收音机的发展，FM-USB收音机的原理和来源

用汇编语言实现单片机电流检测程序-ASM

蜂鸣器在单片机上的应用,汇编语言,附原理图及说明学习文档 蜂鸣器的正极性的一端联接到5V电源上面，另一端联接到三极管的集电极，三极管的基级由单片机的P2.4管脚通过一个与非门来控制， 用户可以通过程序控制P2.4管脚的置低和置高来使蜂鸣器发出声音和关闭。 蜂鸣器的声音大小及音调可以通过调整P2.4管脚的置高时间及输出的波形进行控制，这一点可以在调试程序的时候来试验。-On the buzzer in single-chip applications, assembly language, with a schematic diagram and instructions to study documents the positive polarity of the end of the buzzer connected to the 5V power supply above, the other end connected to the transistor" s collector, the base level by the single-chip transistor Machine P2.4 pin through a NAND gate to control, the user can be programmed to set pin P2.4 low and set high to make the buzzer sound on and off. Buzzer sound size and pitch can be set by adjusting the P2.4 pin of the high time and output waveform control, and this point could be the time to test the debugger.

This example prints out "HELLO WORLD!" by writing directly to the video memory.

小动画心 动画显示提示信息"按任意键进入"， 然后就没有任何反映了, 不知道该怎么办了?-small animation heart animation shows a message "by Anykey enter," and then there would be no point to the fact that I do not know how the Office

汇编语言编写的类似俄罗斯方块的游戏程序-compiled languages like Tetris game procedures

这是一个矩阵键盘按钮液晶1602流动显示预定字符，适合初学者及工程应用。-This is a keyboard button matrix LCD shows scheduled for 1602 mobile characters for beginners and engineering applications.

asm for motor forward and backward

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.