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Description: 程序详细功能介绍：
* 利用AT89S51单片机的P0端口的P0.0－P0.7连接到一个共阳数码管的a－h的笔段上，
* 数码管的公共端通过三极管8550选通。在数码管上循环显示0－9数字，显示时间的间隔可通过修改延时程序。
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Size: 1409 |
Author: linyuande |
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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。
Platform: |
Size: 17183 |
Author: 陈巍巍 |
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Description: 程序详细功能介绍：
* 利用AT89S51单片机的P0端口的P0.0－P0.7连接到一个共阳数码管的a－h的笔段上，
* 数码管的公共端通过三极管8550选通。在数码管上循环显示0－9数字，显示时间的间隔可通过修改延时程序。 -Procedures detailed functional Introduction:* use AT89S51 MCU port P0 is connected to P0.0-P0.7 Yang a total digital control of the a-h T segment,* digital tube through the public side-gated transistor 8550. In the digital control on the circulation figures 0-9 show, indicating the time interval may be delayed by modifying the procedures.
Platform: |
Size: 1024 |
Author: linyuande |
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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.
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Size: 17408 |
Author: 陈巍巍 |
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Description: 16X16点阵屏，用2块hc164列驱动，16个8550行驱动，左移-16X16 dot matrix screen, with two out hc164-driven, 16 8550 line driver, the left
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Size: 1024 |
Author: duwanli |
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Description: 很好的三极管相关的资料，推荐下载，很有用-Well transistor-related information to download and useful! !
Platform: |
Size: 221184 |
Author: 杜慧英 |
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Description: delphi7 ics实现的功能强大的ftp server
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Size: 191488 |
Author: 万良来 |
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Description: the guide of the PCB s construction
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Size: 221184 |
Author: mactron |
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Description: 一款基于点阵编译的c程序，程序功能：四个8*8LED点阵接成16*16LED点阵，双色显示，模仿俄罗斯方块游戏，LCD显示分数
程序使用的单片机：AT89S52，用到了其高128RAM数据存储区单元
用到的芯片及器件：74LS154，74LS373，LCD1602，AT89S52,按键，USB接口，1/4W2K电阻，三极管8550-Compiled based on a lattice of c program, the program features: four 8* 8LED dot connected to 16* 16LED matrix, color display, imitation Tetris game, LCD display scores
Program an MCU: AT89S52, used its high-128RAM data storage unit
Used in chips and devices: 74LS154, 74LS373, LCD1602, AT89S52, buttons, USB interface, 1/4W2K resistors, transistors 8550
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Size: 4096 |
Author: lilianyin |
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Description: 贴片万年历c51源代码，功能挺全的。。大家测试。。。。。。。。。
原理清单：
STC89C52 1个
30PF电容 2个
10K电阻 3个
1K电阻 1个
10UF电容 2个
10K排阻 1个
LCD1602 1个
10K电位器 1个
DIP40插座 1个
清楚按键 5个
DS1302 1个
DS18B20 1个
纽扣电池及座子 1个
有源蜂鸣器 1个
8550三极管 1个
12M晶振 1个-teipianwannianli c51 code
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Size: 168960 |
Author: 陈秋忠 |
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Description: 用STC15F104W实现对目标STC芯片免冷启动下载控制...原理: 检测STC-ISP下载程序的下载指令, 当连续检测到指令7F, 则通过控制三极管8550对电源断开再上电,实现免冷启动-use stc15F104W control power
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Size: 6144 |
Author: gz |
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Description: About ultrasonic parking radar ranging, Using matlab written narrowband noise occurs, Consider shadow rain attenuation and multipath effect.
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Size: 57344 |
Author: 高军
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