数字时钟 LCD1602显示 可以校时。
编译环境QUARTUS II 7.2
Digital clock LCD1602 display can be corrected.
Compilation environment QUARTUS II 7.2
(2014-06-27, VHDL, 2107KB, 下载1次)
本设计选用 ALTERA 公司的 EP1C12Q240C8 芯片，利用 VHDL 语言采用自
顶向下的方法在 Quartus Ⅱ环境下完成了数字钟的设计，最后在实验箱上进行测
试。该数字钟包含的功能有计时、显示星期、校时校分、清零、整点报时、音乐
闹铃。
The design uses the silicon chip EP1C12Q240C8 produced by the company of
ALTERA. And with the help of VHDL, the design of a digital clock is completed
using the top-down approach under Quartus Ⅱ, finally carried out in the SmartSOPC.
Functions of the digital clock are: timer, showing day, setting time, resetting, Chime
on every hour, and alarm with music. (2014-05-20, VHDL, 226KB, 下载4次)
1．具有‘时’、‘分’、‘秒’、‘毫秒’的数码管十进制数字显示。
2. 具有手动校时、校分的功能。
3．具有定时与闹钟功能，能在设定的时间使LED灯亮光。
4．能进行整点报时。即从59分50秒起，每隔2秒钟绿色LED灯点亮一次，连续5次，最后一次红色LED灯点亮一次，表明到达整点。
5、具有秒表功能，能显示1 秒，手动停止。
6、具有倒计时功能，显示小时、分钟、秒。
1. With ' when' , ' points' , ' second' , ' ms' digital tube display decimal digits. (2) When a manual school, school of function. 3. With a timer and alarm clock function, can make the LED lights light at a set time. 4. Can carry the whole point timekeeping. Namely, from 59 minutes and 50 seconds, every 2 seconds the green LED lights up once, five consecutive times, the last time the red LED lights up, indicating that reaches the whole point. 5, with a stopwatch function that can display one percent second manually stopped. 6, with a countdown function, display of hours, minutes, seconds. (2014-03-10, VHDL, 2KB, 下载2次)
数字钟，校时较分，显示,用元件例化写的vhdl文件，两个24进制，1个60进制计数器
Digital clock, when the school over the points, show cases with elements of writing vhdl file, two 24-band, a 60-ary counter (2014-03-03, VHDL, 457KB, 下载2次)
verilog电子时钟，可以实现复位、计时、校时、闹钟等多种功能。
verilog electronic clock, you can achieve a variety of functions reset, time, school, alarm clock and so on. (2013-12-12, VHDL, 363KB, 下载5次)
数字钟，实现整点报时以及校时功能，烟大数字逻辑课程实验。
Digital clock, realize the whole point timekeeping and school function, smoke large digital logic course experiment. (2013-11-08, VHDL, 496KB, 下载3次)
基于GPS的高精度时钟在线校频与授时研究.pdf,算法是基于最小二乘法的，同步精度达到-25-+25ns
Online GPS-based precision clock frequency and timing of the school, the algorithm is based on the least squares method, the synchronization accuracy reaches-25-+25 ns (2013-09-14, VHDL, 894KB, 下载13次)
数字钟，功能：12时/24时切换显示，校时,时间很准（4位数码管显示），内含sof，pof，tcl，四个文件，在开发板C1上已实现
digital clock ，verilog (2013-08-21, VHDL, 18KB, 下载7次)
多功能数字电子表
（１）正常计时：秒（60）、分（60）、小时（24）计数；秒计时的频率为1Hz，数码管用动态扫描实时显示计时的小时、分、秒。
（２）整点报时：逢整点蜂鸣器在“59”分钟的第51、53、55、57秒发频率为512Hz的低音，在“59”分钟的第59秒发频率为1024Hz的高音。
（３）校时：
校小时, 显示小时数码管以4Hz的频率递增计数；
校分, 显示分数码管以4Hz的频率递增计数；
校秒, 秒清0。
其他：
1．晶振为12 MHz
2. 采用CPLD 器件为ALTERA 的EPM7064SL-44
3．采用数码管显示
Multifunction digital electronic watch (1) normal time: second (60), points (60), hours (24) counts second timing frequency of 1Hz, dynamic scanning real-time display of digital works timekeeping hour, minutes and seconds. (2) The whole point timekeeping: Every whole point of the buzzer in the " 59" minutes of 51,53,55,57 second frequency is 512Hz bass made in the " 59" minutes of the first 59 seconds made the treble frequency is 1024Hz . (3) school: school hours, hours of digital tube display frequency of 4Hz counts school hours, the display of digital 4Hz for counting school, seconds cleared. Others: 1. Crystal is 12 MHz 2. Using ALTERA CPLD device as the EPM7064SL-44 3. Using digital display (2013-08-20, VHDL, 503KB, 下载3次)
基于QuartusII开发环境，Cyclone III开发板的VerilogHDL多功能数字钟程序。可实现24小时计时，手动校时，闹钟，整点报时功能。分频模块在仿真和烧写是需要改变。
QuartusII based development environment, Cyclone III development board VerilogHDL multifunction digital clock procedures. Can achieve 24-hour clock, manual timing, alarm, hourly chime functions. Frequency module in the simulation and programming needs to change. (2013-07-24, VHDL, 1895KB, 下载4次)
数字电子钟的设计，振荡器产生稳定的高频脉冲信号,作为数字钟的时间基准,然后经过分频器输出标准秒脉冲。秒计数器满60后向分计数器进位,分计数器满60后向小时计数器进位,小时计数器按照“24翻1”规律计数。计数器的输出分别经译码器送显示器显示。计时出现误差时,可以用校时电路校时、校分。
Digital electronic clock design, stable high frequency oscillator generates a pulse signal as a digital clock time reference, and then passes through a divider output standard second pulse. Second counter at least 60 minutes after the binary counter, minute counter at least 60 hours after the binary counter, hour counter in accordance with the "24 turn a" regular count. The outputs of the counter is sent to the decoded display. Timing errors, you can use the circuit when the school when the school, school hours.
(2013-07-02, VHDL, 1469KB, 下载1次)
设计一台能显示时、分、秒的数字电子钟，具体要求如下：
（1）时计数器用24进制计时电路，分、秒计数器用60进制计分、计秒电路；
（2）可手动校时，能分别进行时、分的校正；
（3）能实现整点报时功能。
Design a table can display hours, minutes and seconds of digital electronic clock, the specific requirements are as follows: (a) when the counter with 24 hexadecimal timing circuits, minutes, seconds counter with 60 decimal points, namely, second circuit (2) may be Manually school, be able to separate hours, minutes correction (3) to achieve the whole point timekeeping function. (2013-06-23, VHDL, 913KB, 下载3次)
电子时钟设计 包含校时和闹钟功能 闹钟播放一段音乐 ppt和word报告也有 太大不上传 需要的发邮箱lin170587788@gmail.com
Electronic clock and alarm functions including school play a musical alarm clock ppt and word report also does not upload much needed hair mailbox lin170587788@gmail.com (2013-06-17, VHDL, 315KB, 下载4次)
用 Verilog HDL 设计一个多功能数字钟，包含以下主要功能：
1） 计时，时间以 24 小时制显示；
2） 校时；
3） 闹钟：设定闹钟时间，可利用 LED 闪烁作为闹钟提示；
4） 跑表：启动、停止；
5） 其他。
Using Verilog HDL design a multi-functional digital clock contains the following main functions: 1) time, the time is displayed in 24-hour clock 2) school 3) Alarm Clock: Set the alarm time, you can use the LED flashes as an alarm 4) Stopwatch: start, stop 5) Other. (2013-04-24, VHDL, 1206KB, 下载33次)
设计了一个数字钟，可以完成00:00:00到23:59:59的计时功能，并在控制电路的作用下具有保持、清零、快速校时、快速校分、整点报时等功能。
Design a digital clock, timing functions can be completed from 00:00:00 to 23:59:59, and has to maintain the role of the control circuit is cleared quickly School, rapid correction points, the whole point timekeeping function. (2013-04-10, VHDL, 178KB, 下载2次)
设计一个多功能数字时钟:时钟显示，手动校时，整点报时，闹钟功能
Clock manually school, the whole point timekeeping, alarm clock function (2013-04-09, VHDL, 360KB, 下载8次)
(1)设计一个具有‘时’、‘分’、‘秒’的十进制数字显示（小时从00～23）计时器。
(2)具有手动校时、校分的功能。
(3)闹钟功能，能在设定的时间发出提醒（绿色LED灯闪烁）。
(4)能进行整点报时。从59分50秒起，每隔2秒钟绿色LED灯闪一次，连续5次，达到整点时红色LED灯闪一次。
(1) design a ' when' , ' points' , ' s' decimal digital display (hour timer from 00 to 23). (2) having a manual correction, the correction sub functions. (3) The alarm clock function, can send reminders at a set time (green LED flashes). (4) The whole point timekeeping. Starting at 59 minutes and 50 seconds, every 2 seconds the green LED lights flash five times in a row, when the whole point of the red LED lights flash once. (2013-03-27, VHDL, 2KB, 下载3次)
数字钟verilog程序，实现了校时、闹钟校正、整点报时、当前时间与闹钟时间切换显示功能。
Digital clock verilog program, school, alarm clock correction, the whole point timekeeping function. (2012-12-15, VHDL, 100KB, 下载10次)
多功能时钟，具有正常显示，校时，整点报时，闹钟功能。
Multi-function clock, with a normal school, the whole point timekeeping, alarm clock function. (2012-11-26, VHDL, 470KB, 下载5次)
数字钟(for DE2 开发板)
1.‘时’、‘分’、‘秒’的十进制数字显示（小时从00～23）计时器。
2. 手动校时、校分、校秒的功能。
3．定时与闹钟功能，能在设定的时间发出闹铃声。
4．进行整点报时。从59分50秒起，每隔2秒钟发出一次低音“嘟”的信号，连续5次，最后一次发出高音“嘀”的信号，此信号结束即达到整点。
5、一个秒表，最低位1 秒、60秒，手动停止，手动重置。
6、一个倒计时，显示小时、分钟、秒，可设置时间。
Decimal digital display (hour digital clock (for DE2 development board). ' ' , ' Minutes' , ' seconds' timer from 00 to 23). 2 when manually school, the school points School sec functionality. 3. Timer and alarm clock function, the alarm sounds at the set time. 4. The whole point of time. Starting at 59 minutes and 50 seconds, every 2 seconds issued time bass " beep" signal, five times in a row, the last issued a the treble " tick" signal, this signal the end to reach the whole point. 5, a stopwatch, the lowest 1 seconds, 60 seconds, manually stop manually reset. 6, a countdown display hours, minutes, seconds, set the time. (2012-11-11, VHDL, 887KB, 下载77次)