PlantUML 一个非常好用的工具

摘要: 安装 vscode 下载安装 Plantuml 插件 Intsall graphviz$ sudo apt-get install graphviz Install openjdk$ sudo apt-get install openjdk-25-jdk Go to vscode shift + a 阅读全文
posted @ 2026-04-29 10:01 ENGINEER-F 阅读(3) 评论(0) 推荐(0)

100 ms, 20 ms, PCIe PERST#, power-up, that somthing maybe confused you

摘要: The Two Critical Timing Windows Timing Specification Description 20 ms PCIe Base Spec §6.6 Endpoint must enter LTSSM Detect state after PERST# deasser 阅读全文
posted @ 2026-04-20 13:41 ENGINEER-F 阅读(17) 评论(0) 推荐(0)

ARM TrustZone versus Secure Boot

摘要: ARM TrustZone and Secure Boot are two fundamental, complementary security technologies in ARM-based systems, but they solve different problems and ope 阅读全文
posted @ 2026-03-12 14:29 ENGINEER-F 阅读(18) 评论(0) 推荐(0)

ARM based SoC server与Linux kernel 功耗管理

摘要: https://zhuanlan.zhihu.com/p/580754972 https://neoverse-reference-design.docs.arm.com/en/latest/features/power/index.html 阅读全文
posted @ 2026-03-10 13:58 ENGINEER-F 阅读(5) 评论(0) 推荐(0)

Security must be considered in the whole device life-cycle:

摘要: Security must be considered in the whole device life-cycle:o Requiremento Designo Implementationo Validationo Provisioningo DevOpso Failure analysis 阅读全文
posted @ 2026-02-06 14:19 ENGINEER-F 阅读(6) 评论(0) 推荐(0)

ARM SCP-firmware build flow

摘要: 1 编译错误提示, Makefile.cmake 文件分析 .SECONDEXPANSION: .PHONY: all all: $(FIRMWARE_TARGETS) firmware-%: $(PRODUCT_BUILD_PATH)/$$@/CMakeCache.txt $(CMAKE) --b 阅读全文
posted @ 2026-02-03 17:26 ENGINEER-F 阅读(8) 评论(0) 推荐(0)

7.8.4 Advanced Error Reporting Extended Capability (AER)

摘要: The PCI Express Advanced Error Reporting (AER) Capability is an optional Extended Capability that may be implemented by PCI Express device Functions s 阅读全文
posted @ 2026-01-30 18:45 ENGINEER-F 阅读(10) 评论(0) 推荐(0)

[PCIe] - Power Budgeting Extended Capability

摘要: Case 1 : BAR register display that it's disabled. Resolution: $ sudo setpci -s xx:xx.0 COMMAND=0x02, but why? memory map not default enabled by defaul 阅读全文
posted @ 2026-01-30 14:18 ENGINEER-F 阅读(11) 评论(0) 推荐(0)

[Reprinted] - Optical vs. Copper Cables

摘要: Optical vs. Copper Cables: The Road to Terabits and Practical Challenges Jun 22, 2025 Milovan Janicijevic in Uncategorized Optical and copper intercon 阅读全文
posted @ 2026-01-27 10:32 ENGINEER-F 阅读(7) 评论(0) 推荐(0)

CMake getting started - 01 Tutorial

摘要: https://cmake.org/cmake/help/latest/guide/tutorial/index.html 阅读全文
posted @ 2026-01-06 11:00 ENGINEER-F 阅读(11) 评论(0) 推荐(0)