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Description: 首先，分别对8255、8253进行初始化，设置8255为A口、C口输出，设置8253的计数器0为工作模式3；其次，设置IRQ7的中断矢量，使得有IRQ7中断时调用SERVER；再次，调用INIT对计数值初始化；最后，主程序循环等待中断，开始秒表的计时。 2、 INIT子程序-First, the 8255,8253 initialization, set for the 8255 A-C mouth output, set 8253 as the Counter mode 0 3; Second, set up the interruption vector there, make it there interruption call SERVER; Again, call curl_setopt early to count before; Finally, the cycle of waiting for the main program interruption began stopwatch time. 2, curl_setopt Subroutine
Platform: |
Size: 3695 |
Author: 孙媳妇 |
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Description: 首先，分别对8255、8253进行初始化，设置8255为A口、C口输出，设置8253的计数器0为工作模式3；其次，设置IRQ7的中断矢量，使得有IRQ7中断时调用SERVER；再次，调用INIT对计数值初始化；最后，主程序循环等待中断，开始秒表的计时。 2、 INIT子程序-First, the 8255,8253 initialization, set for the 8255 A-C mouth output, set 8253 as the Counter mode 0 3; Second, set up the interruption vector there, make it there interruption call SERVER; Again, call curl_setopt early to count before; Finally, the cycle of waiting for the main program interruption began stopwatch time. 2, curl_setopt Subroutine
Platform: |
Size: 15372 |
Author: 孙媳妇 |
Hits:
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
Platform: |
Size: 29412 |
Author: 唐迪 |
Hits:
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
Platform: |
Size: 265679 |
Author: gaodebo |
Hits:
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
Platform: |
Size: 32283 |
Author: solarphoebus |
Hits:
Description: 利用8253的一个通道作定时器，演奏C调各个音符
Platform: |
Size: 801 |
Author: Vivian |
Hits:
Description: 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 。
Platform: |
Size: 151011 |
Author: 邢磊` |
Hits:
Description: 当按下键盘的数字键“1”～“0”时，能发出相应的C调的“1”～“3”乐音，让键盘成为简易钢琴
Platform: |
Size: 399 |
Author: xiaochi_wuya |
Hits:
Description: 首先，分别对8255、8253进行初始化，设置8255为A口、C口输出，设置8253的计数器0为工作模式3；其次，设置IRQ7的中断矢量，使得有IRQ7中断时调用SERVER；再次，调用INIT对计数值初始化；最后，主程序循环等待中断，开始秒表的计时。 2、 INIT子程序-First, the 8255,8253 initialization, set for the 8255 A-C mouth output, set 8253 as the Counter mode 0 3; Second, set up the interruption vector there, make it there interruption call SERVER; Again, call curl_setopt early to count before; Finally, the cycle of waiting for the main program interruption began stopwatch time. 2, curl_setopt Subroutine
Platform: |
Size: 3072 |
Author: 孙媳妇 |
Hits:
Description: 首先，分别对8255、8253进行初始化，设置8255为A口、C口输出，设置8253的计数器0为工作模式3；其次，设置IRQ7的中断矢量，使得有IRQ7中断时调用SERVER；再次，调用INIT对计数值初始化；最后，主程序循环等待中断，开始秒表的计时。 2、 INIT子程序-First, the 8255,8253 initialization, set for the 8255 A-C mouth output, set 8253 as the Counter mode 0 3; Second, set up the interruption vector there, make it there interruption call SERVER; Again, call curl_setopt early to count before; Finally, the cycle of waiting for the main program interruption began stopwatch time. 2, curl_setopt Subroutine
Platform: |
Size: 15360 |
Author: 孙媳妇 |
Hits:
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
Platform: |
Size: 28672 |
Author: 唐迪 |
Hits:
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
Platform: |
Size: 265216 |
Author: gaodebo |
Hits:
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
Platform: |
Size: 31744 |
Author: solarphoebus |
Hits:
Description: 利用8253的一个通道作定时器，演奏C调各个音符
-Use 8253 as a channel for timer, playing all the notes C tune
Platform: |
Size: 1024 |
Author: Vivian |
Hits:
Description: 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 。
-1. Through the parallel port 8255A to control LED brightness light-emitting diode out. 2. A population control a red light, B I control yellow, C green population control. 3. Output of 0-liang, the output for an out. 4. Using 8253 to control the transformation of time from time to time.
Platform: |
Size: 150528 |
Author: 邢磊` |
Hits:
Description: 电子选择器，是利用TND－MD教学系统实现的，用来作为特定场合投票机器统计使用。所用到的芯片主要有8253定时计数器、8255A并行接口电路芯片等。使用时，用户用键盘输入A，B，C，D这四个字母中的一个来作为已经选择的项目，程序将在屏幕上对应显示已经选择的“A,B,C或者D”，并且通过控制扬声器，发出对应的频率声音信号，同时相对应的LED灯也对应发光，以便于位于远处的计票员进行远程计票。-Electronics selector is the use of TND-MD teaching system implementation, and used as a specific occasion the use of voting machines and Statistics. Used by the main chip has 8253 regular counters, 8255A parallel interface circuit chips. When used, the user with keyboard input A, B, C, D in these four letters as a selection of projects has been, the program will display on the screen has been chosen corresponding to " A, B, C or D" , and through control speakers, the issue of the corresponding frequency of the voice signal, while the corresponding LED lights also light-emitting counterparts, so far located in remote tellers tellers.
Platform: |
Size: 1024 |
Author: 伊川 |
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Description: 由STC89C52控制计数器8253产生步进可调的方波，可以通过配置计数器初值改变输出的方波频率。输出的方波可以作为电机的PWM。-8253 by the counter generate STC89C52 control stepper adjustable square wave, you can configure the counter to change the initial value of the square wave output frequency. Square-wave output can be used as motor PWM.
Platform: |
Size: 1024 |
Author: 冯浩 |
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Description: 利用protuas仿真8253，原理图，c源代码和keil51联合仿真。-Simulation using protuas 8253, schematic, c source code and keil51 joint simulation.
Platform: |
Size: 97280 |
Author: wangyanke |
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Description: 本实验使用8253的定时计数器2，GATE2接到开关K1上，CLK2接1MHZ的时钟脉冲，OUT2接示波器观测输出波形，并在数码管上显示“8253---C”。-The timing of the experiments using 8253 counter 2, GATE2 received on the switch K1, CLK2 clock pulses received 1MHZ, OUT2 connected oscilloscope to observe the output waveform and digital display " 8253--- C" .
Platform: |
Size: 112640 |
Author: zhaolulu |
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Description: TURBO C自动控制关于8255和8253方面的编程-TURBO C 8255 and 8253 on automatic control aspects of the programming
Platform: |
Size: 4445184 |
Author: yewenjie |
Hits: