-
主要介绍了等精度频率测量原理，该原理具有在整个测试频段内保持高精度频率
测量的优点 同时在该原理基础上，采用了Verilog HDL语言设计了高速的等精度测...
主要介绍了等精度频率测量原理，该原理具有在整个测试频段内保持高精度频率
测量的优点 同时在该原理基础上，采用了Verilog HDL语言设计了高速的等精度测频
模块，并且利用EDA开发平台QUARTUS11 3 .0对CPLD芯片进行写人，实现了计数等
主要逻辑功能 还使用C语言设计了该等精度频率计的主控程序以提高测量精度。本设
计实现了对频率变化范围较大的信号进行频率测量，能够满足高速度、高精度的测频要
求。-Introduced, such as the accuracy of frequency measurement principle, the principle has in the entire test frequency to maintain the advantages of high precision frequency measurement at the same time the basis of the principle of using the Verilog HDL language, such as the design of a high-speed precision frequency measurement module, and use of EDA Development platform QUARTUS11 3 .0 on CPLD chip to write, and achieved a count of the main logic function, such as the use of C language is also designed such precision the frequency of control procedures to enhance measurement accuracy. This design achieved a wide range of frequency changes in signal frequency measurement, to meet the high-speed, high precision frequency measurement requirements.
- 2023-08-06 16:05:04下载
- 积分：1
-
vb编写的引入系统监视器，一个非常小但实用。
vb编写的引入系统监视器，一个非常小但实用。-vb prepared by the introduction of system monitors, a small but very practical.
- 2023-07-02 23:40:03下载
- 积分：1
-
a small procedure, the right button to transform very good use, and try your inf...
一个小程序，对按钮进行的变换
挺好用的，试一试，大家参考参考-a small procedure, the right button to transform very good use, and try your information.
- 2022-03-05 23:07:14下载
- 积分：1
-
《英语单词游戏》。共有1千常用单词。屏幕中有10个英语单词飘动，屏幕下有对应的中文单词，取中文单词去碰英文单词，正确得加分。可单人或双人玩。...
《英语单词游戏》。共有1千常用单词。屏幕中有10个英语单词飘动，屏幕下有对应的中文单词，取中文单词去碰英文单词，正确得加分。可单人或双人玩。-"English word games." A total of 1,000 used a word. Screen are 10 English words wafted screen counterparts under the Chinese words, the Chinese word for the English word try, correct a boost. Can be single or double play.
- 2022-02-03 13:12:17下载
- 积分：1
-
Internal use of computer networks and distance learning, the creation of Web
利用计算机网络实现内部和远程教学，创设基于网络的学习环境，师生共同建立一个突破时间、地域限制，由以教为主变为以学为主的教学平台， 探索学科教学与信息技术有机结合的途径与模式。
系统是B/S模式。系统是给学校的师生提供一个平台，补充教学环节的薄弱，增强课下复习的效率。系统分为前台和后台。
-Internal use of computer networks and distance learning, the creation of Web-based learning environment, teachers and students to jointly build a breakthrough in time and geographical constraints, mainly from in order to teach become school-based teaching platform to explore the subject combination of teaching and information technology ways and patterns.
System is B/S mode. System is to provide a platform for teachers and students of the school to supplement the teaching of the weak links and enhance the efficiency of class under review. System is divided into foreground and background.
- 2022-08-07 03:57:58下载
- 积分：1
-
bj54与WGS84转换，很好的用一个小工具
bj54与WGS84转换，很好的用一个小工具-bj54 with WGS84 conversion, very good with a small tool
- 2022-06-19 06:01:39下载
- 积分：1
-
投诉表单，用ASPVB编写的，附加在动易上
投诉表单，用ASPVB编写的，附加在动易上-tou su biao dan
- 2022-02-03 16:44:47下载
- 积分：1
-
这是一个“迷宫”，迷你游戏，移动键盘控制。环境…
这是一个“迷宫”小游戏，键盘控制移动。执行环境为 TC 3.0。-This is a "labyrinth" mini games, mobile keyboard control. The environment for the implementation of TC 3.0.
- 2023-04-10 11:35:03下载
- 积分：1
-
韦根26数据→卡号转换程序
韦根协议是国际上统一的标准，有很多格式，标准的韦根26-bit 应该是最常用的格式。此外，还有34-bit 、37-bit 等格式。此源代码主要用于将韦根26数据转换为卡号数据。
- 2023-06-18 04:35:03下载
- 积分：1
-
采用非接触式红外线测量人体体温，用液晶1602做输出显示。
采用非接触式红外线测量人体体温，用液晶1602做输出显示。-The use of non-contact infrared temperature measurement of the human body, and so the output of liquid crystal display 1602.
- 2022-01-25 16:19:56下载
- 积分：1
