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Description: 用c++程序,基于8255和8253实现的一个电子琴程序-with c procedures, based on 8255 and 8253 achieved a flower procedures
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Size: 28672 |
Author: 唐迪 |
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Description: 微机接口试验的8253工作方式0的测试程序-Computer Interface Test 0 8,253 working methods of testing procedures
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Size: 1024 |
Author: 王锐 |
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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: 14336 |
Author: 123456 |
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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: 265216 |
Author: gaodebo |
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Description: 基于Intel 8253定时器的两端Asm，包括配套电路，流程图
1。设计基于ISA总线的Intel 8253 的接口电路，用Intel 8253 的1个通道作定时器，演奏C调的各个音符，利用查表程序的方法依次演奏，每个音符演奏1s，停0.5s 演奏三遍后退出程序
2。利用Intel 8253的一个通道产生一个100Hz的方波，用示波器测试信号的正确性
以产生的方波作为另一个通道门控信号。利用此通道测量其高电平的宽度，在PC机显示屏上显示其数值并退出程序
-based on the Intel 8253 timer at both ends of programmers, including matching circuit, flowchart
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Size: 31744 |
Author: solarphoebus |
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Description: 通过使用定时计数器8253实现微机原理实验时钟功能设计-through the use of Arithmometer 8253 PC principle experiment Clock Design
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Size: 5120 |
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Description: 2位微机实验指导书
华中科技大学计算机学院
武汉市豪申光电新技术有限公司
第一章 基本接口实验 2
第一节 并行接口实验(8255芯片实验) 2
实验一 步进电机控制接口实验 2
第二节 定时/计数实验(8253芯片实验) 9
实验二 音乐发生器接口实验 9
第三节 串行通信接口实验(8251芯片实验) 21
实验三 RS-232标准全双工查询方式异步串行通信实验 21
第四节 A/D D/A转换器接口实验 32
实验四 查询方式A/D转换器接口实验(ADC0809) 32
实验五 D/A函数波形发生器接口实验(DAC0832) 40
第二篇 微机原理实验 44
第一章 16位汇编语言编程实验 44
实验一 系统认识实验 44
实验二 数据码制转换程序设计实验 49
实验三 求和程序设计实验 59
实验四 分支程序设计实验 68
实验五 循环程序设计实验 77
实验六 排序程序设计实验 86
实验七 子程序设计实验 95-two computer guide books Huazhong University of Science and Technology in Wuhan City Computer College ho optoelectronic applications of new technologies first Limited Chapter two basic interface experimental section I Parallel Interface (8,255 microarray experiment) into two experimental step motor control interface is regular inspection section 2/Counting Experiment (8253 experiment) 9 2 Experimental Music Generator Interface 9 Section III Series Communication Interface Experiment (8251 microarray experiment) 21 experimental three RS-232 standard full-duplex asynchronous serial inquiry OK communication experiment 21 Section IV A/D D/A converters Interface 32 inquiry experiment four A/D converters interface Experiment (Connection between ADC 0809) 32 experimental 5 D/A waveform g
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Size: 1617920 |
Author: xiak |
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Description: 定时计数器主要需要8253来进行定时计数功能的实现-Timing the key needs of counter 8253 to count function from time to time to achieve
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Size: 2588672 |
Author: 张逍遥 |
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Description: 用8255,8253,8259实现的具有显示时分秒的电子时钟.-With 8255,8253,8259 realize is displayed every minute with an electronic clock.
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Size: 2048 |
Author: wang hong |
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Description: 一些微机接口的例子，具体用到的芯片有8253定时器，8255，8259等 具体有键盘测试，LED灯显示，电子发声设计实验等-Some examples of computer interface, the specific use of the chip has 8253 timer, 8255,8259 specific test has a keyboard, LED lights display, electronic sound design experiments
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Size: 27648 |
Author: ligao |
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Description: 可编程间隔定时器（Programmable Interval Timer，PIT， 8253或8254模型），也叫做系统时钟，是一个非常有用的芯片，可以在一定时间间隔精确地产生中断。芯片本身有3个通道：通道0绑定到IRQ0，在可预知和规则的时间中断CPU；通道1特定于系统；通道2则连接到系统扬声器。就像你看到的一样，单个的芯片为系统提供了几个非常重要的服务。-Programmable Interval Timer (Programmable Interval Timer, PIT, 8253 or 8254 model), also known as the system clock, is a very useful chip in a certain time interval can be accurately generate an interrupt. Chip itself has three channels: channel 0 bound to IRQ0, and rules in the foreseeable time interrupt CPU channel 1-specific systems 2-channel speaker connected to the system. As you see, like a single chip for the system provides several important services.
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Size: 4096 |
Author: 注册和开 |
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Description: 电子秒表，利用8253芯片实现秒表的计时。-Electronic stopwatch, using 8253 chip stopwatch time.
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Size: 2048 |
Author: urtuyt |
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Description: 通过8253产生不同的频率信号，使PC机成为简易电子琴的实验的原理和程序。-Through 8253 have a different frequency signals, so that PC-organ experiments become simple principle and procedures.
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Size: 25600 |
Author: wendy |
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Description: 设计任务及要求
1. 以8255接八个开关K1~K8，做电子琴按键输入。
2. 以8253控制扬声器，使用简易键盘，发出相应的音阶。
要求： K1—静音
K2—发si的音493Hz
K3—发la的音440Hz
K4—发sol的音392Hz
K5—发fa的音349Hz
K6—发mi的音329Hz
K7—发re的音293Hz
K8—发do的音261Hz
-Design task and requirements of 1. 8 8255 then switch K1 ~ K8, do flower keystrokes. 2. To control the speaker 8253, the use of simple keyboard, issued by the corresponding scale. Requirements: K1-mute K2-fa si audio 493HzK3-fa la s sound of 440HzK4-fa sol fa fa sound 392HzK5-audio 349HzK6-fa mi fa 329HzK7-sound re audio 293HzK8-fat, do the 261Hz tone
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Size: 1024 |
Author: yu |
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Description: 利用8253的0#通道来定时中断（IRQ0），循环显示“0”－“9”十个数-The use of 8253 s 0# Channels interrupted from time to time (IRQ0), the cycle shows 0 - 9 10 the number of
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Size: 1024 |
Author: chenxuan |
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Description: 电子秒表的设计
1、用系统8253定时器提供的55ms定时单位，设计秒表定时程序。
2、有关系统定时方法：
PC机系统中的8253定时器0工作于方式3，外部提供一个时钟作为CLK信号,
频率：f=1.1931816MHz。
定时器0输出方波的频率:fout=1.1931816/65536=18.2Hz。
输出方波的周期Tout=1/18.2=54.945ms。8253A每隔55ms引起一次中断，作为定时信号。可用
5945ms作基本计时单位。
用BIOS调用INT 1AH可以取得该定时单位。例：1秒=18.2 (计时单位)-The design of electronic stopwatch 1, 8253 with the system timer to provide regular units of 55ms, design stopwatch timing procedures. 2, the system timing method: PC system in 8253 Timer 0 works in the way 3, to provide an external clock as the CLK signal, frequency: f = 1.1931816MHz. Timer 0 output square wave frequency: fout = 1.1931816/65536 = 18.2Hz. Cycle square wave output Tout = 1/18.2 = 54.945ms. 8253A every 55ms caused a disruption, as a timing signal. 5945ms available for the basic time unit. INT 1AH use BIOS calls can be made of the regular units. For example: 1 seconds = 18.2 (time units)
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Size: 2048 |
Author: 卢春 |
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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。
-err
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Size: 208896 |
Author: 王辉 |
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Description: 1、用系统8253定时器提供的55ms定时单位，设计秒表定时程序。
2、有关系统定时方法：
PC机系统中的8253定时器0工作于方式3，外部提供一个时钟作为CLK信号,
频率：f=1.1931816MHz。
定时器0输出方波的频率:fout=1.1931816/65536=18.2Hz。
输出方波的周期Tout=1/18.2=54.945ms。8253A每隔55ms引起一次中断，作为定时信号。可用
5945ms作基本计时单位。
用BIOS调用INT 1AH可以取得该定时单位。例：1秒=18.2 (计时单位)
-1, using the system timer 8253 provides 55ms timing units, design stopwatch timing procedures. 2, the system timing method: PC system timer 0 of 8253 working in the way of 3, to provide an external clock as the CLK signal, the frequency: f = 1.1931816MHz. Timer 0 output square wave frequency: fout = 1.1931816/65536 = 18.2Hz. Cycle square wave output Tout = 1/18.2 = 54.945ms. 8253A every 55ms caused a disruption, as a timing signal. 5945ms available for the basic time unit. INT 1AH use BIOS calls can be made of the timing unit. For example: 1 seconds = 18.2 (time units)
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Size: 2048 |
Author: 肖勋 |
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Description: 电子秒表要实现的功能：用键盘中断来控制整个程序，按一下回车键启动电子秒表，再按一下暂停，按一下ESC键清零，用七段数码管显示时间。整个程序涉及到8255、8253与8259三个芯片。8253的OUT2，CLK2分别连接8259的IRQ7与PCLK，8253的GATE2连接正5伏电压，采用计数器2每隔0.01秒产生一次中断并且计数，写入以偏移地址4000H开始的4个内存单元，然后利用8255将内存单元的数据输出到七段数码管-err
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Size: 18432 |
Author: fff |
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Description: 微机原理课程设计报告
课题六：数字闹钟
1. 通过8253定时器产生秒脉冲定时中断。在中断服务程序中实现秒、分、小时的进位（24小时制）。
2. 将当前时分秒在七段LED显示器上显示（如：091132）。
3. 可设置闹钟的时间当前值（对准时间）,设置闹铃时间,闹铃功能的关闭和开放.
关键词:数字闹钟，8253定时器，LED显示器，8255A并行口
-Computer Principles of curriculum design report six topics: digital alarm clock 1. Through the 8253 regular pulse generated timer interrupt. In the interrupt service routine to achieve seconds, minute, hour binary (24 hours system). 2. When the minutes and seconds in the current Seven-Segment LED display shows (for example: 091,132). 3. To set the alarm time to the current value (at the time), set the alarm time, alarm function to close and open. Keywords: digital alarm clock, 8253 Timer, LED display, 8255A Parallel Port
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Size: 161792 |
Author: zd |
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