Huang Weiliang | Embedded Systems Expert | Linux, QNX, Virtualization

2 points from paper A Time Scaling Theory for Multi-Layer Electronic Systems

To see what exactly Huawei did

A Time Scaling Theory for Multi-Layer Electronic Systems 论文中的两个要点：混合键合技术混合键合是一种芯片互联封装技术，能够将两个（或多个）独立晶圆/芯片在极小间距下直接”面对面”物理连接，同时实现电气导通和机械固定。 example: 传统平面布局： ┌─────────────────────────────┐ │ [门...

Posted by half cup coffee on May 25, 2026

Setup Linux kernel development env with macbook

play with new macbook

Recently I switched from windows to Macbook which is my first time to use the MacOS. It is fresh to me like the feeling when I start to use Linux OS. Well, I knew MacOS is unix-like OS, so it has t...

Posted by half cup coffee on April 5, 2026

AAOS (Android Automotive OS) study guide (chn)

android Automotive SDV

AAOS (Android Automotive OS) 深度指南目录一、AAOS 整体概述二、系统架构全景三、Android Framework - Car APIs 四、CarService 五、CarAudioService 六、HVAC (车载空调系统) 七、CarUserManager 八、VehiclePropertyManager ...

Posted by half cup coffee on March 28, 2026

Go through QNX Startup Code for Raspberry Pi 4 (BCM2711)

Based on SDP 8.0

Introduction This document provides an in-depth analysis of the QNX Neutrino RTOS startup code for the Raspberry Pi 4 board, based on the Broadcom BCM2711 SoC. The startup program is responsible f...

Posted by half cup coffee on February 3, 2026

Understanding QNX Hypervisor Shared Memory

A Deep Dive into Inter-Guest Communication

Understanding QNX Hypervisor Shared Memory Published: January 2026 Introduction In modern automotive and embedded systems, hypervisors enable multiple operating systems to run concurrently on a ...

Posted by half cup coffee on January 31, 2026

Understanding Terminal Devices in QNX Neutrino RTOS

To know more about tty

Understanding Terminal Devices in QNX Neutrino RTOS Overview Terminal handling in QNX Neutrino represents one of the fundamental aspects of process communication and system interaction. While man...

Posted by half cup coffee on January 12, 2026

QNX Screen screen_post_window() and Qualcomm OpenWF Display

A short summary

QNX Screen screen_post_window() and Qualcomm OpenWF Display Integration Overview This article explains how QNX Screen Graphics Subsystem integrates with hardware vendor implementations, specifica...

Posted by half cup coffee on January 12, 2026

Parse the coredump file - a practice of gdb

use the GDB more than backtrace

Introduction Debugging crashes can often feel like detective work, meticulously piecing together clues to understand what went wrong. When an application on a QNX system (or any Linux-like environ...

Posted by half cup coffee on July 26, 2025

How to Hide the Annoying Windows 11 Language Bar

Reclaim Your Clean Taskbar Experience

My Windows Journey I still remember when our company switched from Windows XP to Windows 7. Windows 7 remains the best OS from Microsoft after Windows XP—stable, intuitive, and respectful of user ...

Posted by half cup coffee on January 12, 2025

How a big orginization to be faster on software development!!!

REAL AGILE and REAL FAST

The advantages of a large orginization A large organization is like a substantial vessel. Such a vessel remains stable when encountering significant waves. A large organization offers its employ...

Posted by half cup coffee on November 7, 2024

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