白彦虎
UDS服务器响应实施规则(Serverresponseimplementationrule。。。⼀,概览:Abbreviation Description
suppressPosRspMsgIndicationBit TRUE = server shall NOT send a positive response message (exception see Annex A.1 in definition
of NRC 0x78)
FALSE = server shall send a positive or negative response message
PosRsp Abbreviation for positive response message
我爱下电影论坛NegRsp Abbreviation for negative response message
NoRsp Abbreviation for NOT sending a positive or negative response meesage
NRC Abbreviation for negative response code
ALL All of the requested data-parameters of the client request message are supported by the server At least 1At least 1 data-parameter of the client request message must be supported by the server None
None of the requested data-parameter of the client request message is supported by the server
1. 服务器会响应它⽀持的诊断服务,⽽不管是什么地址模式(物理地址还是功能地址); 2. 根据以下⼦项表的要求,当功能寻址消息的消极响应消息中具有SNS (serviceNotSupported), SNSIAS (serviceNotSupportedInActiveSession), SFNS (sub-functionNotSupported), SFNSIAS (sub-functionNotSupportedInActiveSession), and ROOR (requestOutOfRange) 等消极响应码时,此消极响应消息将不会发送(NRC0x78定义中的附件A.1)不应发送。(例外见附件A.1中NRC 0x78的定义)。 ⼆,服务器响应流程图韦丽坤>卢荣友
陈朝波
三,带⼦功能参数的请求消息的服务器响应流程图
屈平词赋悬日月
服务器会检查最⼩长度(最⼩为2,SID+SubFunction Parameter),该⼦功能是否适⽤于此SID等等。
未完待续。。。