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PCIe VDM Device: Definition, Function, and Applications

摘要: PCIe VDM Device: Definition, Function, and Applications​ 1. Core Definition​ A PCIe VDM (Vendor Defined Message) device​ refers to a PCI Express (PCIe 阅读全文
posted @ 2025-12-08 13:49 ENGINEER-F 阅读(14) 评论(0) 推荐(0)

MCTP implementation in ARM sub-system

摘要: PLDM acts as the application layer, PLDM specification dictates what data to transferred in each packet. MCTP is the transport layer. Like TCP, it dea 阅读全文
posted @ 2025-12-08 10:39 ENGINEER-F 阅读(3) 评论(0) 推荐(0)

RAS Definition

摘要: RAS​ stands for Reliability, Availability, and Serviceability, a foundational concept in computer systems engineering that defines critical performanc 阅读全文
posted @ 2025-12-03 11:13 ENGINEER-F 阅读(5) 评论(0) 推荐(0)

Reliability(可靠性)与 Robustness(鲁棒性)的定义与区别

摘要: 1. 核心定义 Reliability(可靠性)​ 指系统或产品在 规定条件​ 和 规定时间​ 内 持续完成预定功能​ 的能力,强调 一致性​ 和 可预测性。例如,汽车发动机在正常驾驶条件下连续运行10万公里不故障 关键指标:平均无故障时间(MTBF)、故障率。 设计重点:冗余、高精度组件、严格测试 阅读全文
posted @ 2025-12-03 11:06 ENGINEER-F 阅读(19) 评论(0) 推荐(0)

3.2 What Name to Give Your Makefle

摘要: By default, when make looks for the makefle, it tries the following names, in order: GNUmakefile, makefile and Makefile. Normally you should call your 阅读全文
posted @ 2025-11-28 18:29 ENGINEER-F 阅读(3) 评论(0) 推荐(0)

[make] - Makefile 中,Recipe(规则体)是指什么

摘要: A simple makefile consists of “rules” with the following shape: ` target ... : prerequisites ...recipe...... ` A target is usually the name of a file 阅读全文
posted @ 2025-11-28 14:47 ENGINEER-F 阅读(0) 评论(0) 推荐(0)

[make] - GNUmakefile, makefile, Makefile 区别及应该选择哪一个命名? - (推荐答案:Makefile)

摘要: 在使用 make 命令时,GNUmakefile 和 Makefile, makefile 文件之间的主要区别在于文件的命名和优先级。 以下是详细的解释: 当你运行 make 命令时,make 会按照以下顺序查找文件: AN1:这意味着如果同时存在 GNUmakefile 和 Makefile,ma 阅读全文
posted @ 2025-11-28 10:35 ENGINEER-F 阅读(0) 评论(0) 推荐(0)

“空洞”指:设备申请的连续地址空间未被系统分配,

摘要: PCIe BAR(Base Address Register,基地址寄存器)是设备向系统声明内存/IO地址空间需求的关键寄存器(Type 0配置空间中有6个BAR,Type 1有2个)。系统软件(BIOS/OS)会根据BAR信息为设备分配连续的物理地址空间,并将基地址写入BAR。 “空洞”指:设备申 阅读全文
posted @ 2025-11-24 15:04 ENGINEER-F 阅读(19) 评论(0) 推荐(0)

ARM AXI-stream、ACE-Lite 与 CMN 的区别解析

摘要: 在 ARM 架构中,AXI-stream、ACE-Lite​ 和 CMN(Coherent Memory Network)是三种不同的总线协议或一致性管理机制,分别针对不同场景设计。以下是它们的核心区别与适用场景: 1. AXI-stream 定位与用途​ AXI-stream 是 AMBA 4.0 阅读全文
posted @ 2025-11-21 14:07 ENGINEER-F 阅读(14) 评论(0) 推荐(0)

[REPRINTED] - What Are Design Requirements: Types and Lifecycle

摘要: What Are Design Requirements: Types and Lifecycle November 14, 2025 https://climbtheladder.com/what-are-design-requirements-types-and-lifecycle/ Desig 阅读全文
posted @ 2025-11-20 10:29 ENGINEER-F 阅读(7) 评论(0) 推荐(0)
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