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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: 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。
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Size: 9572 |
Author: GFQ |
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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
Platform: |
Size: 14336 |
Author: 123456 |
Hits:
Description: 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.
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Size: 9216 |
Author: GFQ |
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Description: 利用实验台上提供的定时器8253和扩展板上提供的8279以及键盘和数码显示电路，设计一个秒表，由8253中断定时，小键盘控制秒表的启停及初始值的预置。-Experimental use of the platform provided by the expansion of on-board timer 8253 and 8279 provided, as well as keyboard and digital display circuit, the design of a stopwatch, interrupted from time to time by 8253, a small keyboard to control the start and stop the stopwatch and the preset initial value.
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Size: 16384 |
Author: 韩雷 |
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Description: 我们上课，老师给的参考程序。在星研仿真环境下运行。结合8259、8253、8279三片芯片，CPU为8088。压缩文件内是2份文档，一份是软件框图，另一份是接线及程序代码。-We took classes and teachers to the reference procedure. In the Star simulation environment running under study. 8259,8253,8279 three-chip combination, CPU of 8088. Within the compressed file is two copies of the document, a software block diagram, the other is the wiring and program code.
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Size: 24576 |
Author: Tina Zhou |
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Description: 出租车计价器 用于8253 8279等芯片实现计价功能-Taximeter 82,538,279 for the valuation functions such as chip
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Size: 1024 |
Author: 冯超 |
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Description: 电子琴8255 8279 8253 液晶显示 键盘输入 -Organ 825,582,798,253 LCD keyboard input
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Size: 2048 |
Author: li |
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Description: 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-8279 with a keyboard and display interface chip receives key key, and on the seven-segment display, by determining the appropriate key to enter the music player process. In the music player, use the timer/counter 2 counter 8253 to work in the way ¬ ¬ 3- square wave generator, followed by table look-up music out into the frequency counter as the count initial value, the output side by out2 wave-driven speakers sound different frequencies in each scale by adding the appropriate delay between the time that the music player to achieve a
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Size: 1024 |
Author: 梦记 |
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Description: 通过8253、8255芯片、8259A芯片控制步进电机的实验-controlling Stepping motor through 8259A/8255/8253 chips, and display on 8279 chip when nessary
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Size: 1024 |
Author: FENG |
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Description: 编写一个交通灯控制程序，实现东西路口与南北路口状态灯的转换和紧急处理。采用8253芯片计数，输出1S的时钟脉冲，并使用8255接口芯片控制LED亮灭，同时让8279芯片显示倒计时，键盘控制紧急处理按键，以此实现交通灯指挥控制系统。-Write a traffic light control program, the conversion of the things the intersection with the north and south of the intersection status lights and emergency treatment. 8253 count output 1S the clock pulse, and use the 8255 interface chip to control the LED light off, while the 8279 display the countdown, keyboard control emergency processing keys, command and control systems in order to achieve the traffic lights.
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Size: 12288 |
Author: chen |
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Description: 出租车计价器 用于8253 8279等芯片实现计价功能-Taximeter 82,538,279 for the valuation functions such as chip
Platform: |
Size: 1024 |
Author: nexpe |
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