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在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测...
在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct
- 2023-01-08 22:50:02下载
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#include <iostream>
#include <stack>
#define MAX_SIZE...
非递归的快速排序算法-#include
#include
#define MAX_SIZE 11
using namespace std
typedef int elem
typedef std::stack Stack
int partition(elem*pData, int low, int high)
void swap(elem& a, elem& b)
void qsort(elem* pData, int low, int high)
int partition(elem*pData, int low, int high)
{
elem key = pData[low]
while(low < high)
{
while(low < high && pData[high] >= key)
high--
swap(pData[low], pData[high])
while(low < high && pData[low]
- 2022-05-08 16:41:43下载
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USB PDIUSB12D C language for a driver
USB PDIUSB12D C语言驱动程序库1-USB PDIUSB12D C language for a driver
- 2022-02-15 00:41:31下载
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首先，分别对8255、8253进行初始化，设置8255为A口、C口输出，设置8253的计数器0为工作模式3；其次，设置IRQ7的中断矢量，使得有IRQ7中断时调...
首先，分别对8255、8253进行初始化，设置8255为A口、C口输出，设置8253的计数器0为工作模式3；其次，设置IRQ7的中断矢量，使得有IRQ7中断时调用SERVER；再次，调用INIT对计数值初始化；最后，主程序循环等待中断，开始秒表的计时。 2、 INIT子程序-First, the 8255,8253 initialization, set for the 8255 A-C mouth output, set 8253 as the Counter mode 0 3; Second, set up the interruption vector there, make it there interruption call SERVER; Again, call curl_setopt early to count before; Finally, the cycle of waiting for the main program interruption began stopwatch time. 2, curl_setopt Subroutine
- 2023-06-17 15:15:03下载
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用汇编语言写的18B20写的温度测量和显示程序,采用LCD显示.
用汇编语言写的18B20写的温度测量和显示程序,采用LCD显示.-Written in assembly language using 18B20 written procedures for temperature measurement and display using LCD display.
- 2023-04-13 02:10:03下载
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通过汇编获得Ring0级权限，可用在驱动开发上
通过汇编获得Ring0级权限，可用在驱动开发上-through the compilation Rign0 level competence available on the Driver Development
- 2023-06-16 03:35:03下载
- 积分：1
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清理垃圾，大家可以下载到机子，可以帮助你清理机子垃圾
清理垃圾，大家可以下载到机子，可以帮助你清理机子垃圾-Cleaning up litter and everyone can be downloaded to the machine, I can help you clean up garbage loom
- 2022-02-01 16:21:06下载
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MSP430 USART experimental procedure using IAR Embedded Workbenc h software devel...
msp430usart实验程序采用IAR嵌入式工作台软件开发
- 2022-02-22 13:02:44下载
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Do STC89C52 learning remote control, infrared remote control can keep eight of i...
STC89C52做的学习型遥控器，可存八个红外遥控信息，只要再把按键用定时器中断2完成就可以用于商业生产了-Do STC89C52 learning remote control, infrared remote control can keep eight of information, as long as the button and then use Timer 2 interrupt can be completed for commercial production of the
- 2022-02-09 12:04:42下载
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基于DSP2407的快速傅里叶变换程序，来源合众达DSP例程
基于DSP2407的快速傅里叶变换程序，来源合众达DSP例程-fast fourier transform BASED ON DSP
- 2022-02-05 18:27:34下载
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