使用74164连接8行2列键盘的行线，74165连接键盘的列线，编写扫描键盘，包括C和汇编程序...

hex 转 二进制-hex binary switch

好东西,自己看,要慢慢品味,适用于学生搞各种设计,有立体效果,效果特棒-good things, look, taste slowly, the students engage in various design, and three-dimensional effects, special effects wand

利用PMW技术控制LED的RGB亮度。DMX512通讯。-PMW use technology to control LED brightness of the RGB. DMX512 communications.

多功能小车仿真。L298驱动直流电机，有液晶LCD显示方向，速度。-Multi-function car simulation. L298-driven DC motor,there is the direction of liquid crystal LCD display,speed.

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.

用汇编语言实现人名排序问题,根据字母的顺序排列,先比较首字母,如果相同则比较之后的字母-using assembly language to achieve names scheduling problem, according to the alphabetical order, compare the first letters of the alphabet, If the same comparison is the after letters

设计一种自动洗衣机的程序控制器，在启动后先进水，等到达高水位后，启动洗衣马达转动4min，如在洗衣过程中发现水位低于高水位，则停止洗衣马达转动并报警，并在水位到达高水位后再次启动马达。洗衣结束后则启动排水开关，待水位到达低水位后，则启动脱水马达，转动2min。如此重复三次，要求在每一动作之间有2s的间隔。 高水位，低水位为水位传感器，用两个开关模拟，当水位高于高水位或低于低水位时，两个开关的状态分别为0 。启动开关用一个开关表示。进水、排水、洗衣马达、脱水马达及报警分别用一个发光二极管表示。本实验只需用可编程并行接口电路的A口。其硬件接口如下图所示。也可采用可编程逻辑器件进行设计。 -Design of an automatic washing process controller, after commencement of advanced water, and so on to reach the high water mark, start laundry motor rotation 4min, such as in laundry water level lower than that found during the high water mark, then the motor stops rotating laundry and alarm, and the the water level reaches the high water mark again to start the motor. Laundry is started after the end of the drainage switch, when the water level reaches the low water level, then start the dehydration motors, rotating 2min. Repeat three times, each action requires the interval between the 2s. High water, low water level as water level sensors, with two analog switches, when the water

实现一个硬盘保护程序，可以自动恢复硬盘引导区和操作系统引导区等-an little tool to protect your harddrive by recovering important information

PCI信息查询，汇编语言，基于8086系统，功能丰富-Electronic alarm clock, assembly language, based on 8086 system

汇编实现文件分割和合并的ASM代码-compiled files segmentation and merger of the ASM code