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技术资料 DS18B20中文资料
FEATURES
Unique 1-Wire interface requires only one port pin for communication
Multidrop capability simplifies distributed temperature sensing applications
Requires no external components
Can be powered from data line. Power supply range is 3.0V to 5.5V
Zero standby power required
Measur ...
单片机开发 This example program shows how to configure and use the A/D Converter of the following microcontroll
This example program shows how to configure and use the A/D Converter of the following microcontroller:
STMicroelectronics ST10F166
After configuring the A/D, the program reads the A/D result and outputs the converted value using the serial port.
To run this program...
Build the project (Project ...
操作系统开发 A user-space device driver can do many of the things that kernel drivers can t, such as perform a lo
A user-space device driver can do many of the things that kernel drivers can t, such as perform a long-running computation, block while waiting for an event, or read files from the file system. Unlike kernel drivers, a user-space device driver can use other device drivers--that is, access the networ ...
*行业应用 client socket include <sys/types.h> include <sys/socket.h> include <stdio.h> i
client socket
include <sys/types.h>
include <sys/socket.h>
include <stdio.h>
include <netinet/in.h>
include <arpa/inet.h>
include <unistd.h>
int main()
{
int sockfd
int len
struct sockaddr_in address
int result
char ch = A
sockfd = socket(AF_INET, SOCK_STREAM, 0)
address.sin_fami ...
技术资料 8255A
8255芯片
ENTITY a8255 IS
PORT(
RESET : IN std_logic;
CLK : IN std_logic;
nCS : IN std_logic;
nRD : IN std_logic;
nWR : IN std_logic;
A : IN std_logic_vector (1 DOWNTO 0);
DIN : IN std_logic_vector (7 DOWNTO 0);
PAIN : IN std_logic_vec ...
技术资料 基于AVR单片机的风电机组智能消防系统设计与研究
针对风电机组火灾安全问题,分析了火灾发生的原因,设计了基于AVR单片机的风电机组智能消防系统。以单片机为系统控制核心,从硬件方面介绍了烟雾传感器、火焰传感器、温度传感器的原理及其信号调理电路,单片机数字I/O口、模拟输入口的外围扩展芯片,弱电控制强电的中间继电器电路,以及灭火装置情况;从软件方面介绍了利用风电机 ...
单片机编程 16 16点阵显示汉字原理及显示程序
16 16点阵显示汉字原理及显示程序
#include "config.h"
#define&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DOTLED_LINE_PORT&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PORTB #define&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs ...
微处理器开发 RS232.C was written to provide all of the basic functionality needed to employ serial I/O in any a
RS232.C was written to provide all of the basic functionality needed
to employ serial I/O in any application written with Borland C
language compilers. Some features are:
1. Ease of use. No assembly language or library files are used and a simple "#include" statement is all that is required to ...
单片机开发 本文件夹是为用户提供的codeworrior编程范例
本文件夹是为用户提供的codeworrior编程范例，旨在通过给出的范例使用户对odeworrior的使用有所了解。
其中：
"CAN0 CAN4 C"是CAN0和CAN4通讯的程序。用户可参照此例程设置MSCAN模块。
"LED"是《开发套件使用文档》中创建的codewarrior工程。
"Port ucosii V252"是嵌入式操作系统uC/OS-II在DP256/DG128上移植的范例。
"prin ...
技术资料 wireshark抓包分析TCP和UDP
1，使用wireshark获取完整的UDP报文打开wireshark，设置监听网卡后，使用google chrome浏览器访问我腾讯微博的i http://p.t.qq.com/welcomeback.php？lv=1#！/ist/qqfriends/5/？pgv_ref-im.perinfo.pe rinfo.icon？ptlang-2052&pgv-ref-im.perinfo.perinfo.icon，抓得的UDP报文如图1所示。分析以上的报文内容，UDP作为一种 ...