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Description: 十字路口交通灯管理
现对交通信号灯进行管理，车辆放行3分钟后，车行道黄灯闪烁5秒钟，以警示车辆将切换红绿灯。此时人行横道仍维持红灯点亮。车行道的黄灯闪烁5秒钟后，转为人行横道行人放行1分钟，然后再转为车行道车辆放行3分钟。如此循环重复。
用发光二极管模拟信号灯，8255A实现对信号灯的控制（所用端口自定），8253的计数器2定时向实验系统主片8259A的IRQ7请求中断，以实现3分钟，5秒钟和1分钟的定时。
实验系统8253计数器2的CLK2可接OPCLK，频率为1.19318MHZ，GATE2已接＋5V，定时可采用软硬件结合相结合的方式实现。
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Size: 81193 |
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Description: 十字路口交通灯管理现对交通信号灯进行管理，车行道的黄灯闪烁5秒钟后，转为人行横道行人放行1分钟，然后再转为车行道车辆放行3分钟。如此循环重复。 用发光二极管模拟信号灯，8255A实现对信号灯的控制（所用端口自定），8253的计数器2定时向实验系统主片8259A的IRQ7请求中断，以实现3分钟，5秒钟和1分钟的定时。 实验系统8253计数器2的CLK2可接OPCLK，频率为1.19318MHZ，GATE2已接＋5V，定时可采用软硬件结合相结合的方式实现。-traffic lights at a crossroads right now management for traffic signal management, the driveway flashing yellow light five seconds later, the pedestrian crossings to release a minute and then released into driveway vehicles for three minutes. So the cycle to repeat. Using light-emitting diode signal simulation, 8255A right signals control (used to set the port), the 8253 regular counter to the two experimental system of the main unit there 8259A interrupt request, to achieve 3 minutes, 5 seconds and one minute timing. Experimental System to the 8253 counter two OPCLK CLK2 access, frequency of 1.19318MHZ, GATE2 has received +5 V, which combines hardware and software regularly use a combination of ways.
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Size: 43274 |
Author: hzl |
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Description: 福州大学接口课程全部实验代码。包括inter的芯片8253-5、芯片8255A、芯片DAC0832、芯片ADC0809等。详细批注-Fuzhou University courses all experimental interface code. The chip includes inter 8253-5, the 8255A chip, chip DAC0832, such as chip ADC0809. Detailed endorsement
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Size: 171800 |
Author: 林锋杰 |
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Description: 可编程并行接口８２５５Ａ完成的交通灯实验
用８２５５Ａ的Ｂ端口和Ｃ端口控制１２个ＬＥＤ的亮和灭（输出为０则亮，输出为１则灭），模拟十字路口的交通灯。
-programmable parallel interface 8255A completed, the traffic lights experimental 8255A port B and C - I control 12 LED bright and methomyl (output of 0-liang, the output of an anti), the simulation of traffic lights at a crossroads.
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Size: 780 |
Author: 许明 |
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Description: 编写程序控制8255A可编程并行接口芯片，使实验台上的红、绿、黄发光二极管按照十字路口交通信号灯的规律交替发光。当按下任意键则停止运行，返回DOS。-preparation process control 8255A programmable parallel interface chip, lab tables in red, green, Huang LED traffic lights in accordance with the crossroads of the law turn luminescence. When pressed Anykey will cease operation and return to DOS.
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Size: 9170 |
Author: 木木 |
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Description: 微原硬件实验的代码。包括TPC—1型实验台的熟悉、8253计数器/定时器的应用、 8255A并行接口应用等。-original hardware experimental micro-code. Including TPC-1 experiment Taiwan familiar with the 8253 counter / timer application, 8255A Parallel Interface applications.
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Size: 14592 |
Author: 汪铃 |
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Description: 可编程并行接口8255A原理实验以及8253a中所用到的源程序.已经经过编译及上机实验。功能良好运转正常 -programmable parallel interface 8255A principle experiment and 8253a used by the source. Had already been Compiling and experiment on the plane. Good function in normal operation
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Size: 978 |
Author: chance |
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Description: 电子秒表，在硬件上实现电子秒表，主要用8279键盘/显示芯片，8259A中断控制器，8253定时/计数器以及8255A并行接口芯片-electronic stopwatch in electronic hardware stopwatch, mainly 8279 keyboard / Chip, 8259A interrupt controller, 8253 timer / counter and 8255A Parallel Interface Chip
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Size: 14798 |
Author: 123456 |
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Description: 实现了智能显示屏的设计。在TC下用C语言编写程序，利用TPC—1实验箱，用一台PC机通过8255A芯片，使8*8 LED二级管上动态显示“信息工程学院”的字样。并且附有详细的设计文档。-an intelligent display design. TC using the C language programming, the use of TPC-1 experimental box with a PC through the 8255 A chip, * 8 of 8 LED tube two dynamic display "Information Engineering College," on the screen. And with the detailed design document.
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Size: 62248 |
Author: 刘龙 |
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Description: 交通信号灯的控制：
1． 通过8255A并口来控制LED发光二极管的亮灭。
2． A口控制红灯，B口控制黄灯，C口控制绿灯。
3． 输出为0则亮，输出为1则灭。
4． 用8253定时来控制变换时间 。
要求：设有一个十字路口，1、3为南，北方向，2、4为东西方向，初始态为4个路口的红灯全亮。之后，1、3路口的绿灯亮，2、4路口的红灯亮，1、3路口方向通车。延迟30秒后，1、3路口的绿灯熄灭，而1，3路口的黄灯开始闪烁（1HZ）。闪烁5次后，1、3路口的红灯亮，同时2、4路口的绿灯亮，2、4路口方向开始通车。延迟30秒时间后，2、4路口的绿灯熄灭，而黄灯开始闪烁。闪烁5次后，再切换到1、3路口方向。之后，重复上述过程。
-traffic signal control : 1. A parallel port by 8255 to control the LED light emitting diodes-destruction. 2. A red light population control, population control yellow B and C population control green. 3. Output-0, the output of a destruction. 4. Use 8253 to control transform regular time. Requirements : there is a crossroads, 1,3 to the south, to the north, the east-west direction 2,4. Initial state for four junctions in the whole bright red light. After 1,3 junctions green light, red light junctions in the 2,4-, 1,3 junctions opening direction. Delayed 30 seconds after the green light junctions 1,3 out and the junction of 1,3 begin blinking yellow light (1HZ). Stars 5, 1,3 junctions in the red light, green light junctions in the 2,4-, 2,4 direction was opened to traffic junctions. Delayed
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Size: 265679 |
Author: gaodebo |
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Description: 通过8255A和0832，完成四中波形的显示。-through the 8255A and 0832, which completed four waveform display.
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Size: 2200 |
Author: jie |
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Description: 使用OKI公司8255A控制62256RAM程序,并使用8803液晶显示，附液晶驱动。
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Size: 266609 |
Author: 童童 |
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Description: 8255A控制步进电机汇编程序
步进电机作为执行器件，广泛用于自动控制系统、印字位置的控制及XY记录仪的无关控制等各个领域，而步进电机最适宜于用微处理器来控制，此法应用于实验教学、科研中效果良好。
1、实现全数字化驱动电路
设计思路是采用步进脉冲分配器专用芯片PMM8713和程序计数器8253的方法。图1是采用可编程计数器8253、8255和PMM8713芯片的全数字控制方式接线图。在单片机系统中，只连接8253、8255和PMM8713各一个。
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Size: 208484 |
Author: 王辉 |
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Description: 本程序是一个太阳能热水器智能控制系统的程序。它以89C52单片机为核心，配合电阻型4档水位传感器、负温度系数NTC热敏电阻温度传感器、8255A扩展键盘和显示器件、驱动电路（电磁阀、电加热、报警）等外围器件， 完成对太阳能热水器容器内的水位、水温测量、显示；时间显示；缺水时自动上水，水溢报警；手动上水、参数设置；定时水温过低智能电加热等功能。
其中本文第一章主要说明了太阳能热水器智能控制系统的研究现状和本课题的主要任务，第二章对系统的整体结构作了简单介绍，第三章重点介绍了水位水温测量电路，第四章介绍了时钟电路，第五章介绍了显示和键盘电路，第六章对其他电路作了介绍，第七章是对水位测量电路的硬件调试。
本系统对于水位传感器、水温传感器的电阻数据的处理均采用独特的RC充放电的方法。它与使用A/D转换器相比，电路简单、制造成本低。特别适用于对水位、水温要求不精确的场合。
如需详细硬件电路与说明文档请与作者联系！
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Size: 3173 |
Author: 杨志亮 |
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Description: 用汇编语言在8255A芯片上实现抢答器的功能。-Responder assembly language functions on 8255A chip.
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Size: 22528 |
Author: 魏雪 |
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Description: 1、 设计一个电路，由8086通过8255A读取四个开关的状态，然后通过查表输出结果由LED七段数码管显示相应的数字。例如：当四个开关全部断开，读取的数据为1111，则数码管显示F。画出电路图、按要求编写程序，在仿真环境下调试通过。-a circuit design 8086 through 8255A Reads four switch status, and then display the corresponding number the LED seven-segment LED output by the look-up table. For example: When the four switches are all turned off, the data read is 1111, the digital display F. Draw the circuit, according to the requirements of programming, under simulation debugging environment.
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Size: 86016 |
Author: 艾小麦 |
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Description: 1) 掌握8255A的工作方式以及应用.
2) 在系统接口实验单元上构造实际电路.-(1)Master the working mode and application of 8255A.
2) the actual circuit is constructed on the experimental unit of the system interface.
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Size: 1193984 |
Author: gao chong |
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Description: 51单片机io口扩展实验，用8255a芯片对51单片机的io口进行扩展，内带有proteus绘制的仿真原理图和keil c源代码，方便大家学习-51 microcontroller io port expansion experiments, 8255a chip microcontroller io port 51 extend inside with proteus simulation schematic drawing and keil c source code, to facilitate learning
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Size: 48128 |
Author: zhangshaoxing |
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Description: 这是基于51单片机的四层电梯系统的设计，用到4个直流电机和2个步进电机，还有8255A用于扩展IO口，可以正常运行停止。-This is by design of the four-story elevator 51 microcontroller-based system, used four DC motors and two stepper motors, and 8255A for expansion IO port, you can stop running.
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Size: 33792 |
Author: 高赛 |
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Description: 用proteus实现对8255a芯片的流水灯仿真设计(8255A simulation design)
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Size: 70656 |
Author: 3061813764
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