基于国产车规MCU的AUTOSARMCAL架构改进与实现

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中图分类号：TP311 文献标志码：A DOI：10.19620/j.cnki.1000-3703.20250349

Improvement and Implementation of AUTOSAR MCAL Architecture Basedon Domestic Automotive-Grade MCUs

Wu Fan， Zhang Yuan，Huang Xiaoqi，Pang Bo （Xiaohua Semiconductor Co.，Ltd.， Shanghai 201210）

【Abstract】To addressthechallenges faced by domestic automotivechip manufacturers in developing the Microcontroller AbstractionLayer（MCAL）fortheAutomotiveOpenSystemArchitecture（AUTOSAR）—suchasinsufficienttechnicalexpertise andprolongeddevelopmentcycles，thispaperproposes aninnovativelayered architecturedesign.This approachredefines the MCAL into 3distinctlayers.Through functional decouplingandstandardized interfaces，itachievescompatibilitywithboth AUTOSARandtraditional Software Development Kit （SDK）development models.Validationon Xiaohua Semiconductor’s XC277 chipdemonstrates thatallmodulespassedunitandintegrationtests with1O0%coverage （including statement，branch， andModification Condition/Decision Condition Coverage （MC/DC），and critical task execution timesreached microsecond levels.Thisresearch providesawell-validated solution fortechnical inovationin domestic AUTOSARMCAL，holding significantpracticalimplicationsforenhancingtheautonomousandcontrolablecapabilitiesofChina’sautomotiveelectronic software.

KeyWords：AUTOSAR，MCAL，Layered Architecture，CodeReuse，Domestic XC277 【引用格式】吴凡，张远，黄小奇，等.基于国产车规MCU的AUTOSAR MCAL架构改进与实现[J].汽车技术，2026（2）：1-6. WUF，ZHANGY，HUANG XQ，et al.Improvementand Implementation of AUTOSARMCAL Architecture Based on DomesticAutomotive-GradeMCUs[J].Automobile Technology，2026（2）：1-6.

1前言

随着汽车主控芯片配套的软件国产化需求日益凸显，集成电路技术的自主可控已成为我国突破“卡脖子”关键技术的重要国家战略。（剩余8146字）