-
802[1].11无线网络权威指南.part1
802[1].11无线网络权威指南.part1-802 [1] .11 authoritative guide to the wireless network. Part1
- 2022-10-02 11:05:08下载
- 积分:1
-
基于STM32 无线通信2.4g模块源代码
本实验开机后,先检测NRF24L01模块是否存在,在检测到NRF24L01模块之后,根据KEY0和KEY1的设置来决定
模块的工作模式,在设定好工作模式之后,就会不停的发送/接收数据,同样用DS0来指示程序正在运行。
- 2022-06-30 23:14:11下载
- 积分:1
-
网吧系统集成方案。计算机网络集成的大作业。包括最要的设备选型。...
网吧系统集成方案。计算机网络集成的大作业。包括最要的设备选型。-Internet cafe system integration program. Computer Network Integration great job. Including the most wanted selection of equipment.
- 2022-02-10 10:12:32下载
- 积分:1
-
VC++发送带附件邮件程序
VC++发送带附件邮件程序,使用base64编码,能够实现收发自如,资源消耗小,可以传输文字,图片,附件,
接口已经全部封装好,使用非常方便,欢迎大家参考
- 2022-01-30 11:48:12下载
- 积分:1
-
Jennic's Zigbee development of the Demo Application
Jennic的Zigbee的开发的Demo应用程序-Jennic"s Zigbee development of the Demo Application
- 2023-02-09 20:50:03下载
- 积分:1
-
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
- 积分:1
-
J2ME mobile gaming development : Gem ideographic
J2ME开发手机游戏:宝石方块-J2ME mobile gaming development : Gem ideographic
- 2023-03-17 03:55:03下载
- 积分:1
-
晶体管的型号命名,材料分类,结构,识别方法,使用方法。...
晶体管的型号命名,材料分类,结构,识别方法,使用方法。-Transistor model name, material classification, structure, identification methods, the use of methods.
- 2023-07-29 23:30:03下载
- 积分:1
-
培训文件,文件的RAR文件
中国移动3.14SP培训文档,文件为rar文件-training documents, paper documents rar
- 2023-08-24 18:10:03下载
- 积分:1
-
sim 文件系统In addition, its quality of service reduces because of reliance on tradi...
sim 文件系统In addition, its quality of service reduces because of reliance on traditional circuit-switched network elements. At that former time, people hoped to build a based system, which could access a centralized server network, would always have access to the latest traffic information and could provide web links. What this trend is a momentous request for mobile services based on high-speed packet data transfer. Hence, a new standard, GPRS, came into being in order to fill people’s bill.-sim file system In addition, its quality of service reduces because of reliance on traditional circuit-switched network elements. At that former time, people hoped to build a based system, which could access a centralized server network, would always have access to the latest traffic information and could provide web links. What this trend is a momentous request for mobile services based on high-speed packet data transfer. Hence, a new standard, GPRS, came into being in order to fill people s bill.
- 2023-08-16 17:25:02下载
- 积分:1