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通过手机应用工作的网站设计
web site designs for applying work through mobiles
- 2022-03-12 02:05:01下载
- 积分:1
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远程GPRS注册显示,选中注册的远端。可以进行远程数据下载。...
远程GPRS注册显示,选中注册的远端。可以进行远程数据下载。-Show long-range GPRS registration, check the registration of the remote. Remote data can be downloaded.
- 2022-05-14 17:08:36下载
- 积分:1
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MODBUS RTU 51与维纶触摸屏通信例程。
应用背景51和维纶触摸屏的通信。MODBUS RTU 51与维纶触摸屏通信例程。支持的功能码:位:01(读)、05(写),字:03(读)、06(写)还有与数码管显示输入的数据!注释的也比较详细。个人觉得移植性也比较好。各种的单片机上可以移植修改,关键技术51单片机与威纶通触摸屏通讯说明
本程序仅作为一个通信示例程序,实际使用需要根据需要修改。
请使用EB8000 V3.45以上软件打开触摸屏程序,程序为压缩后的触摸屏程序,请使用EB8000软件 工具——压缩/解压缩 菜单下的工具先进行解压缩;单片机使用Keil uVision3 V3.50编译
一、硬件连接
使用ATMEl 89S52单片机。
二、软件
1、通讯环境
触摸屏设置为主站,即PLC 类型 MODBUS RTU,通讯参数设为“9600,N,8,1”。
2、触摸屏程序,需要读取八个位,以及八个字,每次最少读取16个位,字可以一次读取一个也可以一次读取八个。
有0X1-0X8八个位切换开关,6X1-6X8八个字输入元件,支持的功能码:位:01(读)、05(写),字:03(读)、06(写)
当没有写操作时,屏不断的向单片机发送如下码(16进制显示):
01 01 00 00 00 10 3D C6 (位读取)
01 03 00 00 00 08 44 0C (字读取)
此时,如果不给屏发送相应返回值的话,屏就会提示“PLC no response”
3、51单片机程序思路及说明
- 2022-02-02 15:58:29下载
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HCS08 transmission and reception
由按钮激活的两个微控制器之间的传输和接收。
- 2023-03-07 10:55:04下载
- 积分:1
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com原理与应用书及源码
资源描述com原理与应用书及源码,网上大都不全这是比较完整的-Theory and Application of com books and source code, on-line most of which is a more complete incomplete
- 2022-03-10 23:22:15下载
- 积分:1
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symbian for c++ 系统声音调用例子
symbian for c++ 系统声音调用例子-football scores for voice calling system examples
- 2023-05-01 10:50:03下载
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前言请注意本文概述了对邮件软件的开发平台。
Preface Please note this article outlines the development of mail software on platforms Pocket PC 2000 and older only. Pocket 2002 had significantly changed how mail is handled by the OS. I suggest you read the aricles available at the Pocket PC Developers Network Introduction Windows CE provides support for Email Storage as part of the core operating system (ie. its comes on the ROM chip). Microsoft provides a series of API s in the library msgstore.lib which its cal...
-Preface Please note this article outlines the development of mail software on platforms P ocket PC 2000 and older only. Pocket 2002 had sig nificantly changed how mail is handled by the OS . I suggest you read the aricles available at the Pocket PC Developers Network Introduction Win dows CE provides support for Email Storage as pa rt of the core operating system (ie. its comes on the ROM chip). Microsoft provides a series of AP I"s in the library msgstore.lib which its cal
- 2022-03-13 05:38:32下载
- 积分:1
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类似MSN的即时通信工具,代码在vc6.0下调试通过
类似MSN的即时通信工具,代码在vc6.0下调试通过-Similar to MSN
- 2022-11-28 21:10:03下载
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串口通信
设置端口名,波特率,打开端口,就可以发送数据,同时可以收到数据,还可以选择发送的方式,比如,可以以十六进制方式发送,在DATA中会显示数据部分,即是除去帧头和校验位之后的数据部分,
- 2022-07-27 08:13:06下载
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通过仿真产生频率调制信号,并对其频谱特性进行分析
通过仿真产生频率调制信号,并对其频谱特性进行分析
- 2022-05-23 17:19:58下载
- 积分:1