Description: 在定时器中断中做LED的PWM输出
AT89C2051实现A/D转换的C51程序
单片机开发系统 指令系统 程序设计 定时与中断 系统扩展 接口技术 串行口-the timer interrupt to do the PWM output LED AT89C2051 A/D conversion process C51 microcontroller development systems Instruction System Design and regularly interrupted expansion Serial Interface Technology Platform: |
Size: 191488 |
Author:fxy |
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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 Platform: |
Size: 27648 |
Author:ligao |
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Description: 设计应用接口作为16位二进制编码器的输出口，并用该接口作为LED七段显示器的输出口,循环显示编码结果-Application Interface Design as a 16-bit binary encoder output, and the interface as a Seven-Segment LED display output cycle coding results show Platform: |
Size: 132096 |
Author:zhang shun |
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Description: 基于51单片机秒表的程序设计
1．设计目的：
（1）利用单片机定时器中断和定时器计数方式实现秒、分定时。
（2）通过LED显示程序的调整，熟悉8155与8051，8155与LED的接口技术，熟悉LED动态显示的控制过程。
（3）通过键盘程序的调整，熟悉8155与矩阵式键盘的接口技术，熟悉键盘扫描原理。
（4）通过阅读和调试简易秒表整体程序，学会如何编制含LED动态显示、键盘扫描和定时器中断等多种功能的综合程序，初步体会大型程序的编制和调试技巧。
-Based on 51 single-chip programming stopwatch 1. Designed to: (1) the use of single-chip timer interrupt and the timer means counts seconds, minutes from time to time. (2) through the LED display adjust procedures, familiar with the 8155 and 8051,8155 and LED interface technology, familiar with the LED dynamic display of the control process. (3) through the keyboard adjust procedures, familiar with the 8155 with keyboard matrix interface technology, familiar with the keyboard scanning principle. (4) By reading and debugging the whole process simple stopwatch, learn how to prepare with LED dynamic display, the keyboard scanning and a variety of functions such as timers interrupt the General procedure, the initial experience of large-scale procedures for the preparation and debugging skills. Platform: |
Size: 32768 |
Author:全 |
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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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