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Description: 电压计(c语言编写的) 通过led灯显示
电路图说明：
1、R1、R2、D1、D2 组成发光二极管显示，显示过压或过流状态；
2、PC3外接模拟信号
采用内部参考电压所以AREF传电容接地抗干扰AVCC接VCC提供AD转换电压
3、PC5提供164的时钟信号
PC4提供串行输入信号
164具有10ma的输出电流，又具有串入并出以及信号锁存的动能，数码管又为共阴管，所以无须另加驱动
这里采用静态显示
4、现以在程序中加入小数点显示
-voltage Total (c language) led through the lights show circuit : 1, R1, R2, D1, D2 LED components, indicated that pressure or flow state; 2. PC3 external analog signal using internal reference voltage so Aref grounding capacitance- interference then VCC mentioned Chancellors for the AD converter voltage 3, PC5 provide 164 PC4 the clock signal to provide 164 serial input signals with 10ma output current, Also with string-out signal latches and the kinetic energy, digital control would control for a total of overcast, Therefore it is not driven here plus a static four shows, now in the process of accession to the decimal point show
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Size: 306176 |
Author: 赵斌斌 |
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Description: 三星44b0的测试程序，
C语言代码主要是应用代码，包括：
设置使用指令缓存；
修改系统主时钟为32MHz；
IO端口功能、方向设定；
初始化中断；
初始化DMF50081液晶模块；
蜂鸣器测试；
液晶显示测试；
LED输出测试；
定时器、PWM测试等；
-Samsung 44b0 testing procedures, C language code is the main application code, including : the establishment of the use of directives cache; Main changes to the system clock of 32 MHz; IO port functions, set direction; Initialization interruption; Initialization DMF50081 LCD module; The buzzer sounded testing; LCD test; LED output test; Timer, PWM testing;
Platform: |
Size: 100352 |
Author: wohulf |
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Description: 用VHDL能进行正常的时、分、秒计时功能、分别有6个数码管显示24小时、60分钟、60秒钟的计数器显示。-VHDL can be used for normal hours, minutes and seconds timing were six LED display 24 hours 60 minutes, 60 seconds showed that the counter.
Platform: |
Size: 105472 |
Author: lianbin |
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Description: 8051中利用时钟控制实现PWM输出的简单模拟程序,用LED灯的亮度来模拟显示脉宽-8051 using clock control PWM output a simple simulation program, LED lights to simulate the brightness shows pulse
Platform: |
Size: 23552 |
Author: 朱允斌 |
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Description: 实现功能：
1.使用T0中断，对LED进行2ms一次的动态扫描
2.使用T1中断，0.5ms一次作Beep的驱动
3.实现时钟的功能
4.实现UART的中断发送功能
5.用两个按键调整时钟，有去抖动能力，一个为调整设置键，另一个为加一键
6.调整时钟时，按键有BEEP提示，且LED有闪动提示，无按键10秒后自动恢复正常显示-achieve functions : 1. Interruption of the use of T0, LED right for a 2 ms two dynamic scanning. interruption of the use of T1, Beep 0.5ms for a three drivers. Clock achieve functional 4. UART Interrupt achieve this function 5 . with two keys clock adjustment, the ability to jitter, a key set of adjustments, plus another for a key 6. Clock adjustment, BEEP suggest a button and a flashing LED suggest that no keys automatically 10 seconds after the resumption of normal shows
Platform: |
Size: 2048 |
Author: lkx |
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Description: at89c51 实现电子时钟 采用并入串出方式利用51串口的实现键盘读取，用6 个LED实现时间显示-at89c51 using electronic clock out into the Series 51 serial use of the keyboard read, with six LEDs show time
Platform: |
Size: 10240 |
Author: 小伟 |
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Description: 电子时钟的显示（在ＬＥＤ上显示数字时钟功能，基于８９Ｃ５２）-electronic clock display (shown on the LED digital clock function, based on the 89C52)
Platform: |
Size: 4096 |
Author: yangtalent1206 |
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Description: 基于MCS-51单片机的数字钟设计
[摘要] III
[ABSTRACT] IV
引言 1
1绪论 2
1.1 集成电路 2
1.2 主要技术的背景 2
1.2.1 发展历史 2
1.2.2 现状 3
1.2.3 发展趋势 3
2器件简介 4
2.1 LED显示器 4
2.1.1 LED显示器的结构 4
2.1.2 LED的接线形式 5
2.2 AT89C52简介 5
2.2.1 AT89C52主要性能参数： 5
2.2.2 AT89C52单片机的功能特性概述： 6
2.3 DS1302芯片 9
2.3.1 DS1302的性能特性： 9
2.3.2 DS1302数据操作原理 10
2.4 74LS164－八位移位寄存器 14
2.4.1 74LS64简介 14
2.4.2 74LS164逻辑介绍： 15
3硬件电路 17
3.1 线路的设计 17
3.1.1 电源转换模块 18
3.1.2 主控制模块 18
3.1.3 显示模块 19
3.1.4 键盘接口设计 20
3.2 电路图的绘制 20
3.3 电路板的焊接 20
3.4 打开电源前应注意的问题 20
4软件设计部分 21
4.1 阳历程序的设计 21
4.2 时间调整程序设计 21
4.3 阴历程序设计 23
5调试 28
6小结 29
7致谢 30
8参考文献 31
9附录 32
-based on MCS-51 microcontroller design of the digital clock III [Abstract] [ABSTRACT] IV INTRODUCTION Introduction 2 1 1 2 1.2 1.1 IC main technical background history 1.2.1 2 2 1.2. 1.2.3 Situation 2 3 3 2 trends Device Profile 4 2.1 4 LED Displays 2.1.1 LED Display The structure of the four 2.1.2 Connection form LED 5 2.2 5 2.2.1 Introduction AT89C52 AT8 9C52 main performance parameters : 5 2.2.2 AT89C52 outlined in the functional properties : 6 2.3 9 2.3.1 Chip DS1302 DS1302 performance characteristics : 9 2.3.2 DS1302 data operation principle 10 2.4 74LS164-8 shift register 14 74LS64 14 2.4.1 Introduction 2.4.2 74LS164 logic presentations : 15 3 17 3.1 hardware circuit design lines 17 Power Conversion Module 3.1.1 3.1.2 Main Control 18 Module Module 18 3.1.3 3.1.4 keyboard interface 19
Platform: |
Size: 228352 |
Author: 李爱春 |
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Description: 采用实时时钟芯片DS1302+AT89C2051的红外遥控LED电子钟(原程序沈洁代码.rar-using real-time clock chip DS1302 AT89C2051 infrared remote control LED electronic bell (the original Shen Jie procedure code. rar
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Size: 3072 |
Author: 程明 |
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Description: 利用AT89C52及DS12C887制作的日历时钟电路,结构简单,功能强大-AT89C52 and DS12C887 calendar produced by the clock circuit, simple, powerful
Platform: |
Size: 1024 |
Author: 王启才 |
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Description: 用VHDL语言实现数显时钟，devid200.vhd为分频模块，scan.vhd为LED扫描模块，timecount.vhd为计数模块-VHDL digital clock, devid200.vhd for frequency module, scan.vhd for LED scanning module, timecount.vhd for counting module
Platform: |
Size: 3072 |
Author: 王龙 |
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Description: The ability to write efficient, high-speed arithmetic routines ultimately depends
upon your knowledge of the elements of arithmetic as they exist on a computer. That
conclusion and this book are the result of a long and frustrating search for
information on writing arithmetic routines for real-time embedded systems.
With instruction cycle times coming down and clock rates going up, it would
seem that speed is not a problem in writing fast routines. In addition, math
coprocessors are becoming more popular and less expensive than ever before and are
readily available. These factors make arithmetic easier and faster to use and
implement. However, for many of you the systems that you are working on do not
include the latest chips or the faster processors. Some of the most widely used
microcontrollers used today are not Digital Signal Processors (DSP), but simple
eight-bit controllers such as the Intel 8051 or 8048 microprocessors.
Platform: |
Size: 1163264 |
Author: 老猴 |
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Description: 串口扩展LED时钟子程序，不含时间设定，可直接嵌入串口LED显示系统中-Serial LED clock subroutine expansion, excluding the time settings, can be directly embedded in the serial LED display system
Platform: |
Size: 16384 |
Author: kongrui |
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Description: uart5/atmega8515/led 时钟显示-uart5/atmega8515/led clock display
Platform: |
Size: 1024 |
Author: 豆吧 |
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Description:
at89c51单片机为控制核心，它既负责读取DS18B20测得的冷藏室温度，并输出至液晶模组显示，同时又产生实时时钟供液晶显示，并且还负责键盘输入扫描及控制压缩机的运行-AT89C51 single-chip microcomputer to control the core, it is responsible for reading DS18B20 measured refrigerator temperature, and output to the liquid crystal display module, but also generate real-time clock for the LCD and keyboard input is also responsible for scanning and controlling the operation of the compressor
Platform: |
Size: 3072 |
Author: yaoliang |
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Description: led电子钟制作,采用实时时钟芯片DS1302+AT89C2051的红外遥控LED电子钟 -led electronic clock production, the use of real-time clock chip DS1302+ AT89C2051 infrared remote control LED electronic clock
Platform: |
Size: 389120 |
Author: jingyun |
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Description: 超级电子钟源程序。
功能超强，一天可8个定时，年、月、日、星期、时、分 万年厉等，外围超简单，几呼不用其它元件单个89C2051+LED.-Super electronic clock source. Powerful, day 8 timing, year, month, day, weeks, hours, minutes, years, etc. Li, external ultra-simple, a few other components do not have a single call 89C2051+ LED.
Platform: |
Size: 39936 |
Author: liruikui |
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Description: 实用单片机电子钟主程序，要稍加修改后可用于万年历产品中-Practical single-chip electronic clock main program, it is necessary to slightly modified products can be used for calendar
Platform: |
Size: 5120 |
Author: 肖绪东 |
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Description: 秒表/时钟计时器的设计采用AT89C52单片机，最小化应用设计；采用共阳七段LED显示器，P0口输出段码数据，P2.0-P2.5口作列扫描输出，P1.0、P1.1、P1.2口接三个按钮开关，用以调时及功能设置。为了提供共阳LED数码管的驱动电压，用三极管8550作电源驱动输出。-Stopwatch/Clock timer AT89C52 single-chip design, the smallest of the application of design the use of a total of Seven-Segment LED display Yang, P0 paragraph code output data, P2.0-P2.5 I make out scanning output, P1.0, P1.1, P1.2 I take three buttons switch to tune and when the feature set. In order to provide a total of Yang LED digital tube of driving voltage, using 8550 as the power transistor output driver.
Platform: |
Size: 17408 |
Author: 陈巍巍 |
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Description: 用51单片机设计的时钟电路（毕业论文）
AT89C51 LED数码管
实现年月日时分秒电子时钟-Single-chip design with 51 clock circuit (Thesis) AT89C51 LED digital tube to achieve accurate date when the electronic clock
Platform: |
Size: 405504 |
Author: rain |
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