#include<stdio.h> #define TREEMAX 100 typedef struct BT { char data; BT *lchild; BT *rchild; }BT; BT *CreateTree(); void Preorder(BT *T); void Postorder(BT *T); void Inorder(BT *T); void Leafnum(BT *T); void Nodenum(BT *T); int TreeDepth(BT *T); int count=0; void main() { BT *T=NULL; char ch1,ch2,a; ch1='y'; while(ch1=='y'||ch1=='y') { printf("\n"); printf("\n\t\t 二叉樹子系統"); printf("\n\t\t*****************************************"); printf("\n\t\t 1---------建二叉樹 "); printf("\n\t\t 2---------先序遍歷 "); printf("\n\t\t 3---------中序遍歷 "); printf("\n\t\t 4---------后序遍歷 "); printf("\n\t\t 5---------求葉子數 "); printf("\n\t\t 6---------求結點數 "); printf("\n\t\t 7---------求樹深度 "); printf("\n\t\t 0---------返 回 "); printf("\n\t\t*****************************************"); printf("\n\t\t 請選擇菜單號 （0--7）"); scanf("%c",&ch2); getchar(); printf("\n"); switch(ch2) { case'1': printf("\n\t\t請按先序序列輸入二叉樹的結點:\n"); printf("\n\t\t說明：輸入結點（‘0’代表后繼結點為空）后按回車。\n"); printf("\n\t\t請輸入根結點:"); T=CreateTree(); printf("\n\t\t二叉樹成功建立！\n");break; case'2': printf("\n\t\t該二叉樹的先序遍歷序列為:"); Preorder(T);break; case'3': printf("\n\t\t該二叉樹的中序遍歷序列為:"); Inorder(T);break; case'4': printf("\n\t\t該二叉樹的后序遍歷序列為:"); Postorder(T);break; case'5': count=0;Leafnum(T); printf("\n\t\t該二叉樹有%d個葉子。\n",count);break; case'6': count=0;Nodenum(T); printf("\n\t\t該二叉樹總共有%d個結點。\n",count);break; case'7': printf("\n\t\t該樹的深度為:%d",TreeDepth(T)); break; case'0': ch1='n';break; default: printf("\n\t\t***請注意：輸入有誤！***"); } if(ch2!='0') { printf("\n\n\t\t按【Enter】鍵繼續，按任意鍵返回主菜單！\n"); a=getchar(); if(a!='\xA') { getchar(); ch1='n'; } } } } BT *CreateTree() { BT *t; char x; scanf("%c",&x); getchar(); if(x=='0') t=NULL; else { t=new BT; t->data=x; printf("\n\t\t請輸入%c結點的左子結點:",t->data); t->lchild=CreateTree(); printf("\n\t\t請輸入%c結點的右子結點:",t->data); t->rchild=CreateTree(); } return t; } void Preorder(BT *T) { if(T) { printf("%3c",T->data); Preorder(T->lchild); Preorder(T->rchild); } } void Inorder(BT *T) { if(T) { Inorder(T->lchild); printf("%3c",T->data); Inorder(T->rchild); } } void Postorder(BT *T) { if(T) { Postorder(T->lchild); Postorder(T->rchild); printf("%3c",T->data); } } void Leafnum(BT *T) { if(T) { if(T->lchild==NULL&&T->rchild==NULL) count++; Leafnum(T->lchild); Leafnum(T->rchild); } } void Nodenum(BT *T) { if(T) { count++; Nodenum(T->lchild); Nodenum(T->rchild); } } int TreeDepth(BT *T) { int ldep,rdep; if(T==NULL) return 0; else { ldep=TreeDepth(T->lchild); rdep=TreeDepth(T->rchild); if(ldep>rdep) return ldep+1; else return rdep+1; } }
上傳時間： 2020-06-11
上傳用戶：ccccy
#include <stdio.h> #include <stdlib.h> #define SMAX 100 typedef struct SPNode { int i,j,v; }SPNode; struct sparmatrix { int rows,cols,terms; SPNode data [SMAX]; }; sparmatrix CreateSparmatrix() { sparmatrix A; printf("\n\t\t請輸入稀疏矩陣的行數，列數和非零元素個數（用逗號隔開）:"); scanf("%d,%d,%d",&A.cols,&A.terms); for(int n=0;n<=A.terms-1;n++) { printf("\n\t\t輸入非零元素值（格式：行號，列號，值）:"); scanf("%d,%d,%d",&A.data[n].i,&A.data[n].j,&A.data[n].v); } return A; } void ShowSparmatrix(sparmatrix A) { int k; printf("\n\t\t"); for(int x=0;x<=A.rows-1;x++) { for(int y=0;y<=A.cols-1;y++) { k=0; for(int n=0;n<=A.terms-1;n++) { if((A.data[n].i-1==x)&&(A.data[n].j-1==y)) { printf("%8d",A.data[n].v); k=1; } } if(k==0) printf("%8d",k); } printf("\n\t\t"); } } void sumsparmatrix(sparmatrix A) { SPNode *p; p=(SPNode*)malloc(sizeof(SPNode)); p->v=0; int k; k=0; printf("\n\t\t"); for(int x=0;x<=A.rows-1;x++) { for(int y=0;y<=A.cols-1;y++) { for(int n=0;n<=A.terms;n++) { if((A.data[n].i==x)&&(A.data[n].j==y)&&(x==y)) { p->v=p->v+A.data[n].v; k=1; } } } printf("\n\t\t"); } if(k==1) printf("\n\t\t對角線元素的和：:%d\n",p->v); else printf("\n\t\t對角線元素的和為：:0"); } int main() { int ch=1,choice; struct sparmatrix A; A.terms=0; while(ch) { printf("\n"); printf("\n\t\t 稀疏矩陣的三元組系統 "); printf("\n\t\t*********************************"); printf("\n\t\t 1------------創建 "); printf("\n\t\t 2------------顯示 "); printf("\n\t\t 3------------求對角線元素和"); printf("\n\t\t 4------------返回 "); printf("\n\t\t*********************************"); printf("\n\t\t請選擇菜單號（0-3）:"); scanf("%d",&choice); switch(choice) { case 1: A=CreateSparmatrix(); break; case 2: ShowSparmatrix(A); break; case 3: SumSparmatrix(A); break; default: system("cls"); printf("\n\t\t輸入錯誤！請重新輸入！\n"); break; } if (choice==1||choice==2||choice==3) { printf("\n\t\t"); system("pause"); system("cls"); } else system("cls"); } }
上傳時間： 2020-06-11
上傳用戶：ccccy
Agilent 34401A Service Guide.pdfIEC Measurement Category II includes electrical devices connected to mains at an outlet on a branch circuit. Such devices include most small appliances, test equipment, and other devices that plug into a branch outlet or socket. The 34401A may be used to make measurements with the HI and LO inputs connected to mains in such devices, or to the branch outlet itself (up to 300 VAC). However, the 34401A may not be used with its HI and LO inputs connected to mains in permanently installed electrical devices such as the main circuit-breaker panel, sub-panel disconnect boxes, or permanently wired motors. Such devices and circuits are subject to overvoltages that may exceed the protection limits of the 34401A. Note: Voltages above 300 VAC may be measured only in circuits that are isolated from mains. However, transient overvoltages are also present on circuits that are isolated from mains. The Agilent 34401A are designed to safely withstand occasional transient overvoltages up to 2500 Vpk. Do not use this equipment to measure circuits where transient overvoltages could exceed this level. Additional Notices Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC This product complies with the WEEE Directive (2002/96/EC) marking requirement. The affixed product label (see below) indicates that you must not discard this electrical/electronic product in domestic household waste. Product Category: With reference to the equipment types in the WEEE directive Annex 1, this product is classified as a "Monitoring and Control instrumentation" product. Do not dispose in domestic household waste. To return unwanted products, contact your local Agilent office, or see www.agilent.com/environment/product for more information. Agilent 34138A Test Lead Set The Agilent 34401A is compatible with the Agilent 34138A Test Lead Set described below. Test Lead Ratings Test Leads - 1000V, 15A Fine Tip Probe Attachments - 300V, 3A Mini Grabber Attachment - 300V, 3A SMT Grabber Attachments - 300V, 3A Operation The Fine Tip, Mini Grabber, and SMT Grabber attachments plug onto the probe end of the Test Leads. Maintenance If any portion of the Test Lead Set is worn or damaged, do not use. Replace with a new Agilent 3413
標簽： agilent
上傳時間： 2022-02-20
上傳用戶：
電子書-RTL Design Style Guide for Verilog HDL540頁A FF having a fixed input value is generated from the description in the upper portion of Example 2-21. In this case, ’0’ is output when the reset signal is asynchronously input, and ’1’ is output when the START signal rises. Therefore, the FF data input is fixed at the power supply, since the typical value ’1’ is output following the rise of the START signal. When FF input values are fixed, the fixed inputs become untestable and the fault detection rate drops. When implementing a scan design and converting to a scan FF, the scan may not be executed properl not be executed properly, so such descriptions , so such descriptions are not are not recommended. recommended.[1] As in the lower part of Example 2-21, be sure to construct a synchronous type of circuit and ensure that the clock signal is input to the clock pin of the FF. Other than the sample shown in Example 2-21, there are situations where for certain control signals, those that had been switched due to the conditions of an external input will no longer need to be switched, leaving only a FF. If logic exists in a lower level and a fixed value is input from an upper level, the input value of the FF may also end up being fixed as the result of optimization with logic synthesis tools. In a situation like this, while perhaps difficult to completely eliminate, the problem should be avoided as much as possible.
標簽： RTL verilog hdl
上傳時間： 2022-03-21
上傳用戶：canderile
為了提高超高頻RFID系統中閱讀器在低信噪比的情況下仍具有較高的識別能力,提出一種基于FPGA系統結合軟件無線電方法實現超高頻RFID射頻前端電路方案。超高頻射頻識別系統必須符合EPC Class 1generation 2標準,所設計的電路系統以Xilinx公司的XC6SLX16-2CSG324FPGA芯片為硬件基礎,將數字基帶調制解調和中頻濾波電路在FPGA系統中設計實現,重點闡述了射頻前端電路的設計結構、AD/DA轉換電路,以及數字濾波器的設計。實驗結果表明,所設計的超高頻RFID閱讀器簡化了前端電路系統結構,提升了穩定性,增強了抗干擾能力。該電路系統在信噪比較低的情況下,能夠較好地實現915MHz頻率的射頻接收和發送。In order to improve the reader UHF RFID system still has a higher ability to identify,in the case of low signal-to-noise ratio.The UHF RFID systems must comply with EPC Class 1 generation 2 standard.In this paper,the design of the circuit system based on Xilinx＇s XC6SLX16-2CSG324 FPGA chip,and presents UHF RFID RF front-end circuit with software radio based on FPGA system.Digital baseband modem and IF filter circuit is designed and implemented in the FPGA system,and focused on designing the structure of the RF front-end circuit,AD/DA conversion circuits,and digital filter.Experimental results show that the UHF RFID reader de...
標簽： 915mhz 超高頻 rfid 閱讀 射頻 前端 電路 設計
上傳時間： 2022-04-17
上傳用戶：shjgzh
STM32F103開發板 DHT11溫濕度DS18B20 氣體MQ-2光敏聲控雨滴傳感器實驗程序**--------------------------------------------------------------------------------------------------------** Created by: FiYu** Created date: 2015-12-12** Version: 1.0** Descriptions: DHT11溫濕度傳感器實驗 **--------------------------------------------------------------------------------------------------------** Modified by: FiYu** Modified date: ** Version: ** Descriptions: ** Rechecked by: **********************************************************************************************************/#include "stm32f10x.h"#include "delay.h"#include "dht11.h"#include "usart.h"DHT11_Data_TypeDef DHT11_Data;/************************************************************************************** * 描 述 : GPIO/USART1初始化配置 * 入 參 : 無 * 返回值 : 無 **************************************************************************************/void GPIO_Configuration(void){ GPIO_InitTypeDef GPIO_InitStructure; /* Enable the GPIO_LED Clock */ RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO , ENABLE); GPIO_DeInit(GPIOB); //將外設GPIOA寄存器重設為缺省值 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽輸出 GPIO_Init(GPIOB, &GPIO_InitStructure); GPIO_DeInit(GPIOA); //將外設GPIOA寄存器重設為缺省值 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //推挽輸出 GPIO_Init(GPIOA, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //浮空輸入 GPIO_Init(GPIOA, &GPIO_InitStructure); GPIO_SetBits(GPIOB , GPIO_Pin_9); //初始狀態，熄滅指示燈LED1}/************************************************************************************** * 描 述 : 串口顯示實時溫濕度 * 入 參 : 無 * 返回值 : 無 **************************************************************************************/void DHT11_SCAN(void){ if( Read_DHT11(&DHT11_Data)==SUCCESS) { printf("\r\n讀取DHT11成功!\r\n\r\n濕度為%d.%d ％RH ，溫度為 %d.%d℃ \r\n",\ DHT11_Data.humi_int,DHT11_Data.humi_deci,DHT11_Data.temp_int,DHT11_Data.temp_deci); //printf("\r\n 濕度:%d,溫度:%d \r\n" ,DHT11_Data.humi_int,DHT11_Data.temp_int); } else { printf("Read DHT11 ERROR!\r\n"); }}/************************************************************************************** * 描 述 : MAIN函數 * 入 參 : 無 * 返回值 : 無 **************************************************************************************/int main(void){ SystemInit(); //設置系統時鐘72MHZ GPIO_Configuration(); USART1_Init(); //初始化配置TIM DHT11_GPIO_Config(); // 初始化溫濕度傳感器PB1引腳初始時為推挽輸出 GPIO_ResetBits(GPIOB , GPIO_Pin_9); delay_ms(500); while(1) { GPIO_SetBits(GPIOB , GPIO_Pin_9); DHT11_SCAN(); //實時顯示溫濕度 delay_ms(1500); } }
上傳時間： 2022-05-03
上傳用戶：得之我幸78
基于STC89C51單片機的智能電熱水器的控制器的設計，要達到的控制要求有：（1）用LCD1602液晶顯示水溫、設置上下限和定時時間，（2）水溫檢測顯示范圍為00～99℃，精度為±1℃。（3）溫度預設范圍為0～99℃，當檢測溫度低于預設溫度時，開始加熱；檢測溫度高于預設溫度時，停止加熱。（4）設置4個程序按鍵。分別問設置按鍵、加鍵、減鍵、確定。（5）可以紅外遙控，通過紅外一體接收探頭接收遙控器信號，執行與主板按鍵同等功能。（6）有水位檢測功能，無水自動上水，無水不加熱。//外部中斷解碼程序_外部中斷0void intersvr1(void) interrupt 2 using 1{ TR0=1; Tc=TH0*256+TL0;//提取中斷時間間隔時長 TH0=0; TL0=0; //定時中斷重新置零 if((Tc>Imin)&&(Tc<Imax)) { m=0; f=1; return; } //找到啟始碼 if(f==1) { if(Tc>Inum1&&Tc<Inum3) { Im[m/8]=Im[m/8]>>1|0x80; m++; } if(Tc>Inum2&&Tc<Inum1) { Im[m/8]=Im[m/8]>>1; m++; //取碼 } if(m==32) { m=0; f=0; if(Im[2]==~Im[3]) { IrOK=1; TR0=0; } else IrOK=0; //取碼完成后判斷讀碼是否正確 } //準備讀下一碼 }}
上傳時間： 2022-05-14
上傳用戶：
PID-小車類-手機遙控十分mimi藍牙小車V2資料全部開源/**************************************************************************函數功能：增量PI控制器入口參數：編碼器測量值，目標速度返回 值：電機PWM根據增量式離散PID公式 pwm+=Kp[e（k）-e(k-1)]+Ki*e(k)+Kd[e(k)-2e(k-1)+e(k-2)]e(k)代表本次偏差 e(k-1)代表上一次的偏差 以此類推 pwm代表增量輸出在我們的速度控制閉環系統里面，只使用PI控制pwm+=Kp[e（k）-e(k-1)]+Ki*e(k)**************************************************************************/int Speed_Incremental_PI (int Encoder,int Target){ static int Bias,Pwm,Last_bias; Bias=Encoder-Target; //計算偏差 Pwm+=Speed_Kp*(Bias-Last_bias)+Speed_Ki*Bias; //增量式PI控制器if(Pwm>500)Pwm=500;else if(Pwm<-500)Pwm=-500; Last_bias=Bias; //保存上一次偏差 return Pwm; //增量輸出}
上傳時間： 2022-06-01
上傳用戶：20125101110
應廣單片機 MINI-C編程指南.Mini-c總結文檔一、缺點:（一）函數不能帶參數.解決方法:通過A或全局變量進行參數傳遞;（二）不能使用for循環解決方法:用while循環代替for循環.（三）數組和指針功能弱化解決方法:① 使用rom查表② 使用ram查表（四）不支持全局變量定義同時進行初始化解決方法: 在初始化的時候記得對全局變量進行初始化. （五）Bit變量只支持寫入0,或1,不支持直接bit變量取反解決方法 :if(uBitFlag){ uBitFlag=0;}Else{ uBitFlag=1; } 二、優點:（一）函數不帶參數,可以節省堆棧空間（二）支持ROM查表（三）.delay時間非常準確,無需手工計算（四）支持bit變量,節省ram空間,支持字,字節拆分.（五）燒錄支持滾動碼寫入.（六）端口配置可以使用腳本（七） 代碼自動生成
標簽： 單片機
上傳時間： 2022-06-17
上傳用戶：
基于單片機的密碼鎖設計，內含工程文件和源碼文件以及電路圖#include "config.h" void main(){ LCD_Initial(); //lcd初始化 init_sys(); //硬件系統初始化 setpsw(); //密碼設置 while(1) { time=3; //限定嘗試3次 while(1) { inputpsw(); //輸入密碼 checkpsw(); //密碼驗證 checksuper(); //驗證是否是超級密碼 if(error_flag==0) {right();break;} else if(time>1) error(); //允許2次嘗試錯誤 else {lock();break;} //3次錯誤,系統鎖定 } }}
上傳時間： 2022-07-17
上傳用戶：默默
