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avr单片机中使用MODBUS协议的方法

nbsp;

有幸做了个项目,其中使用到了单片机和上位机通讯的程序,上位机用组态实现功能,探索了些方法,写出来和大家分享一下,这些知识本不是什么秘密

2022-09-11 06:30:02 下载 10 查看 5,396
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硬件工程师或研发类工作资料集锦,模拟/数字电路知识,面试试题等

电压串联反馈和电流并联反馈);负反 馈的优点(降低放大器的增益灵敏度,改变输入电阻和输出电阻,改善放大器的线性和非 线性失真,有效地扩展放大器的通频带,自动调节作用)

3、基尔霍夫定理的内容是什么

2022-09-15 19:40:02 下载 9 查看 4,134
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2401源码

ht2402_clk=0; P2MDL=0x0a; NOP4 return(retc); } void i2c_write_one
2025-11-16 14:58:56 下载 7 查看 188
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高速数字系统设计下载pdf

covered in standard
college curricula, at least not in its focus on digital design, which is arguably one
2013-10-26 09:52:01 下载 200 查看 1,132
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电网现场作业管理系统的信息化设计

data of the sub systems are the source information of MIS, by which the same single data resouce with one-time
2013-11-15 22:12:01 下载 125 查看 1,072
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基于开关电容技术的锁定放大器设计

Abstract:
 Lock-in Amplifying(LIA)is one of important means for weak
2013-11-29 04:46:02 下载 141 查看 1,088
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电梯控制模拟实验系统的设计

reliability and low cost,and can simulate the operation of a five-storey elevator control system.On the one
2023-09-15 06:00:01 下载 4 查看 9,753
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基于STC89C516单片机的多功能导盲杖的设计

The guide cane is one of the most basic tools for blind people to travel.In order to solve the

2023-09-21 13:50:01 下载 3 查看 248
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基于单片机的CAN总线数据采集设计与实现

three nodes,two of which collect the temperature and infrared remote control signals respectively,and one
2023-09-23 13:00:01 下载 10 查看 5,610
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基于单片机的智能安防报警系统

Improving security measures has become one of the priorities of many modern families.According

2023-10-06 14:40:02 下载 1 查看 6,987
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基于MSP430单片机和DS18B20的数字温度计

MSP430 series has ultra-low power and high integration, DS18B20 only needs one port to achieve data communication
2013-10-16 08:28:01 下载 119 查看 1,135
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USB Demonstration for DK3200 w

contains two independent Flash memory arrays, the Micro Controller Unit (MCU) can execute
code from one
2014-02-27 17:30:22 下载 98 查看 1,104
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介绍C16x系列微控制器的输入信号升降时序图及特性

Due to the sample rate of 10us, it is assured that only one sample can
occur while the signal is within
2014-04-02 13:50:48 下载 182 查看 1,102
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Digital Signature Algorithm (DSA)是Schnorr和ElGamal签名算法的变种

p - 1, h^((p-1)/q) mod p > 1; x:x < q,x为私钥 ; y:y = g^x mod p ,( p, q, g, y )为公钥; H( x ):One-Way
2014-01-01 09:56:10 下载 123 查看 1,165
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Paperport

同事们可以在网络文件柜中方便地存取重要文档
8、All-in-One搜索
PaperPort是一种强有力的搜索引擎,可以让办公室的每个人立即找到所需要的文档——无论它在本地文件夹还是网络文件夹里
2017-04-25 09:12:44 下载 3 查看 39
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单片机原理及应用“互联网+”课程在继续教育中的建设研究

Internet technology is also one of the hottest application technologies nowadays.So the internet plus
2023-10-09 08:00:01 下载 1 查看 5,801
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教学-实验-实训三位一体的单片机教学改革探讨

We proposed one method which combines teaching, experiments and practice of MCU.
2023-10-09 15:50:01 下载 7 查看 5,383
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基于51单片机的智能家居设计

understanding of it,and feel that this is insignificant in people’s lives.In order to change people’s view of one-sidedness
2023-10-15 10:20:02 下载 5 查看 6,567
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无绳电话机原理使用与维修_许涌清


21.无绳电话机上常见的英文是什么
2013-11-05 21:12:01 下载 196 查看 1,122
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可解释的机器学习

它们的优缺点是什么
如何解释它们的输出?本书将使你能够选择并正确应⽤最适合你的机器学习项⽬的解释⽅法。
2021-02-08 21:29:33 下载 5 查看 113
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