(3.16)--can入门教程建筑电气与智能化专业实训.pdf
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1、Notice 1.All information included in this document is current as of the date this document is issued.Such information,however,is subject to change without any prior notice.Before purchasing or using any Renesas Electronics products listed herein,please confirm the latest product information with a R
2、enesas Electronics sales office.Also,please pay regular and careful attention to additional and different information to be disclosed by Renesas Electronics such as that disclosed through our website.2.Renesas Electronics does not assume any liability for infringement of patents,copyrights,or other
3、intellectual property rights of third parties by or arising from the use of Renesas Electronics products or technical information described in this document.No license,express,implied or otherwise,is granted hereby under any patents,copyrights or other intellectual property rights of Renesas Electro
4、nics or others.3.You should not alter,modify,copy,or otherwise misappropriate any Renesas Electronics product,whether in whole or in part.4.Descriptions of circuits,software and other related information in this document are provided only to illustrate the operation of semiconductor products and app
5、lication examples.You are fully responsible for the incorporation of these circuits,software,and information in the design of your equipment.Renesas Electronics assumes no responsibility for any losses incurred by you or third parties arising from the use of these circuits,software,or information.5.
6、When exporting the products or technology described in this document,you should comply with the applicable export control laws and regulations and follow the procedures required by such laws and regulations.You should not use Renesas Electronics products or the technology described in this document
7、for any purpose relating to military applications or use by the military,including but not limited to the development of weapons of mass destruction.Renesas Electronics products and technology may not be used for or incorporated into any products or systems whose manufacture,use,or sale is prohibite
8、d under any applicable domestic or foreign laws or regulations.6.Renesas Electronics has used reasonable care in preparing the information included in this document,but Renesas Electronics does not warrant that such information is error free.Renesas Electronics assumes no liability whatsoever for an
9、y damages incurred by you resulting from errors in or omissions from the information included herein.7.Renesas Electronics products are classified according to the following three quality grades:“Standard”,“High Quality”,and“Specific”.The recommended applications for each Renesas Electronics product
10、 depends on the products quality grade,as indicated below.You must check the quality grade of each Renesas Electronics product before using it in a particular application.You may not use any Renesas Electronics product for any application categorized as“Specific”without the prior written consent of
11、Renesas Electronics.Further,you may not use any Renesas Electronics product for any application for which it is not intended without the prior written consent of Renesas Electronics.Renesas Electronics shall not be in any way liable for any damages or losses incurred by you or third parties arising
12、from the use of any Renesas Electronics product for an application categorized as“Specific”or for which the product is not intended where you have failed to obtain the prior written consent of Renesas Electronics.The quality grade of each Renesas Electronics product is“Standard”unless otherwise expr
13、essly specified in a Renesas Electronics data sheets or data books,etc.“Standard”:Computers;office equipment;communications equipment;test and measurement equipment;audio and visual equipment;home electronic appliances;machine tools;personal electronic equipment;and industrial robots.“High Quality”:
14、Transportation equipment(automobiles,trains,ships,etc.);traffic control systems;anti-disaster systems;anti-crime systems;safety equipment;and medical equipment not specifically designed for life support.“Specific”:Aircraft;aerospace equipment;submersible repeaters;nuclear reactor control systems;med
15、ical equipment or systems for life support(e.g.artificial life support devices or systems),surgical implantations,or healthcare intervention(e.g.excision,etc.),and any other applications or purposes that pose a direct threat to human life.8.You should use the Renesas Electronics products described i
16、n this document within the range specified by Renesas Electronics,especially with respect to the maximum rating,operating supply voltage range,movement power voltage range,heat radiation characteristics,installation and other product characteristics.Renesas Electronics shall have no liability for ma
17、lfunctions or damages arising out of the use of Renesas Electronics products beyond such specified ranges.9.Although Renesas Electronics endeavors to improve the quality and reliability of its products,semiconductor products have specific characteristics such as the occurrence of failure at a certai
18、n rate and malfunctions under certain use conditions.Further,Renesas Electronics products are not subject to radiation resistance design.Please be sure to implement safety measures to guard them against the possibility of physical injury,and injury or damage caused by fire in the event of the failur
19、e of a Renesas Electronics product,such as safety design for hardware and software including but not limited to redundancy,fire control and malfunction prevention,appropriate treatment for aging degradation or any other appropriate measures.Because the evaluation of microcomputer software alone is v
20、ery difficult,please evaluate the safety of the final products or system manufactured by you.10.Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental compatibility of each Renesas Electronics product.Please use Renesas Electronics product
21、s in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances,including without limitation,the EU RoHS Directive.Renesas Electronics assumes no liability for damages or losses occurring as a result of your noncompliance with applicable laws and
22、regulations.11.This document may not be reproduced or duplicated,in any form,in whole or in part,without prior written consent of Renesas Electronics.12.Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this document or Renesas Electro
23、nics products,or if you have any other inquiries.(Note 1)“Renesas Electronics”as used in this document means Renesas Electronics Corporation and also includes its majority-owned subsidiaries.(Note 2)“Renesas Electronics product(s)”means any product developed or manufactured by or for Renesas ECAN入门书
24、Guide封Rev.1.00RCJ05B0027-01002006.02应用手册 RCJ05B0027-0100/Rev.1.00 2006.02 Page 1 of 48 CAN 入门书 1.概要 本资料是面向 CAN 总线初学者的 CAN 入门书。对 CAN 是什么、CAN 的特征、标准规格下的位置分布等、CAN 的概要及 CAN 的协议进行了说明。2.使用注意事项 本资料对博世(BOSCH)公司所提出的 CAN 概要及协议进行了归纳,可作为实际应用中的参考资料。对于具有 CAN 功能的产品不承担任何责任。目录 1.概要.1 2.使用注意事项.1 3.CAN 是什么?.2 3.1 CAN
25、的应用示例.3 3.2 总线拓扑图.4 4.CAN 的特点.5 5.错误.6 5.1 错误状态的种类.6 5.2 错误计数值.8 6.CAN 协议的基本概念.9 7.CAN 协议及标准规格.12 7.1 ISO 标准化的 CAN 协议.12 7.2 ISO11898 和 ISO11519-2 的不同点.13 7.3 CAN 和标准规格.17 8.CAN 协议.18 8.1 帧的种类.18 8.2 数据帧.21 8.3 遥控帧.28 8.4 错误帧.30 8.5 过载帧.31 8.6 帧间隔.32 8.7 优先级的决定.33 8.8 位填充.36 8.9 错误的种类.37 8.10 错误帧的输出
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