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汽车电子功能安全标准ISO26262解析（十）——HSI 原创pianpian_zct 最后发布于2018-01-18 15:15:58 阅读数 1952 收藏 展开 Hardware software interface specification (HSI) ISO 26262-4：7.4.6.1 The HSI shall be specified during system design and shall be detailed during hardware development and software development. HSI应在系统设计阶段说明，并在硬件和软件阶段进行细化。 ISO 26262-4：7.4.6.2 HSI shall include hardware devices of the component that are controlled by software and hardware resources that support execution of software. HSI应包括被软件控制的硬件元器件和支持软件运行的硬件源。 ISO 26262-4：7.4.6.3 The HSI specification shall include the following characteristics: HSI应包括以下内容: a) the relevant operating modes of hardware devices and relevant configuration parameters; 硬件元器件的工作模式和配置参数 EXAMPLE 1 Operating modes of hardware devices can be: default, init, test or advanced modes 工作模式包括缺省、初始化、测试及其他模式 EXAMPLE 2 Configuration parameters can be: gain control, band pass frequency or clock prescaler 配置参数包括增益控制、带通频率、时钟分频等 b) the hardware featues that ensure independence between elements and support software partitioning; 确保硬件元器件相互独立并支持软件分割的硬件特性 c) shared and exclusive use of hardware sources; 共用或独有的硬件源 EXAMPLE 3 Memory mapping, allocation of registers, timers, interrupts I/O ports 例如：内存映射、寄存器分频、时钟、I/O口中断 d) the access mechanism to hardware devices; 硬件访问机制 EXAMPLE 4 Serial, parallel, slave, master/slave 例如串行、并行、从器件、主从器件 e) the timing constraints defined for each service involved in the technical safety concept; 技术安全概念中包含的时序约束 f) the hardware diagnostic features shall be defined, example protection against over-current, short-circuit, over-temperature 硬件诊断特性，例如过流保护、短路保护、过温保护等 g) the diagnostic features concerning the hardware to be implemented by the software shall be defined. 为了让软件运行的硬件诊断特性 ———————————————— 版权声明：本文为CSDN博主「pianpian_zct」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。 原文链接：https://blog.csdn.net/pianpian_zct/article/details/79096461 |
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