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Personal technical notes on embedded Linux, Linux kernel, programming and FPGA, written in both Vietnamese and English.

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75 notes · 10 topics · since 2019 · last updated 2026-10-20 · built with Mkdocs

Latest articles

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Topics

• Notes

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  Mkdocs, Markdown, shell script, Python and handy bookmarks.

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• Articles

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  Short research articles, one small topic per article.

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• Book & Materials

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  Reading notes on C, Linux, kernel and algorithm books.

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• Linux Embedded

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  Petalinux, Yocto, U-Boot, PTP, DPDK and board projects.

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• Linux Kernel

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  Device drivers (I2C, SPI, GPIO, UART, ALSA) and kernel debugging.

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• Virtualization

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  Hypervisors (Hyper-V, mshv) and containers (Docker).

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• Programming

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  C, data structures, design patterns, perf and multi-threading.

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• IC Design

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  Static timing analysis in Vivado and FPGA / Xilinx IP cores.

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• Computer Architecture

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  Instruction set architecture (RISC-V, ARM).

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Document Tree

Notes

• Bookmarks: Collection of useful Linux websites, blogs and tutorial series.
• Mkdocs Tool: User guide for Mkdocs and how to publish it with Github Page.
• Markdown Language: Markdown syntax used to write this documentation.
• Shell Script: Shell script syntax notes (e.g. arrays) with a tutorial reference.
• Python: Quick Python syntax notes such as print formatting and lists.
• Virtual Machine: WIP – no content yet.
• What's next: To-do list of topics to study and write about next.

Book & Materials

Notes when reading books or some materials.

• C Programing: List of C programming books, including Head First C.
• Linux Programing: Linux books such as Linux in a Nutshell and The Linux Programming Interface.
• Linux Device Driver: Entry for the book Linux Device Drivers, 3rd edition.
• Linux Kernel: Entry for the book Understanding the Linux Kernel.
• Linux Embedded: Free Electrons slides on Embedded Linux kernel and driver development.
• Data Structure & Algorithms: Algorithms books by Robert Sedgewick (Algorithms 4th, Algorithms in C).
• Others: Other books, currently The Art of Computer Programming.

Linux Embedded

• Overview: Overview of what an embedded Linux system engineer has to do.
• HW Platforms: List of hardware platforms used, such as Xilinx Zynq7000 and Zynq UltraScale+.
• Common Tools
  • Makefile: Definition & syntax of Makefile and the make build tool.
  • Version Control Concept: Introduction to version control and popular client-server and distributed systems.
  • Git: Handy Git commands, e.g. merging repositories and linking a local repo to a remote.
• Xilinx Petalinux
  • Overview: Overview of Xilinx Petalinux tooling for porting Linux to Zynq7000.
  • Petalinux 2017: Technical notes and tips from working with Petalinux 2017.4.
  • List of Petalinux Images: Table describing the image files Petalinux produces.
• Yocto
  • Overview: Key Yocto terms and definitions (build directory, package, ...).
• Bootloader
  • U-Boot on Zynq: WIP – no content yet.
• ES Devices
  • EEPROM: Introduction to serial EEPROM devices and their characteristics.
• Linux PTP: Network synchronization with IEEE 1588 PTP and ITU-T G.8260 on Linux.
• DPDK: WIP – no content yet.
• Network Block Device: Introduction to and usage of Network Block Device for remote block storage.
• Tips: Practical tips such as SSH options for remote control.
• Projects: projects are implemented in several platforms.
  • Zynq: Projects on Zynq boards such as Zedboard and Picozed.
  • IMX8: WIP – no content yet.
  • Raspberrypi 3B: Raspberry Pi 3 Model B links and notes on porting Linux.
• Linux General
  • Unsorted: Unsorted Linux notes such as update-rc.d and SUSv3.
  • Commands: Handy Linux commands, e.g. xclip for copying to the clipboard.

Linux Kernel

• Linux Device Driver
  • Overview: Overview of general concepts of Linux Device Driver.
  • Kernel Module: Kernel module basics and printing logs with printk and dev_* functions.
  • Platform Device: WIP – no content yet.
  • I2C Subsystem: I2C bus and the Linux I2C platform driver model.
  • SPI Device: Developing SPI device drivers in the Linux kernel.
  • SPI Device Advance: Advanced SPI topics: extending chip-select signals and SPI GPIO (outline only).
  • GPIO: The Linux GPIO subsystem from the driver perspective.
  • UART: Serial (UART) programming in userspace with reference materials.
  • JESD: WIP – no content yet.
  • Audio: Audio in Linux: ALSA architecture and concepts.
  • PCIe: WIP – no content yet.
• Linux Kernel General
  • Kernel Data Structure: Kernel data structures such as the list_head linked list.
  • Kernel Space, User Space Interfaces: Reference link on kernel space and user space interfaces.
  • FTrace: How to use ftrace to debug the kernel, from a real synchronization bug.
  • Dynamic Debug: Enabling and disabling kernel debug messages at runtime with dynamic debug.
  • Common Clock Framework: CCF architecture, consumer/provider API, Device Tree binding, locking with PREEMPT_RT, debugging and recent changes.

Virtualization

• Hypervisor & Hyper-V: Hypervisor types, Hyper-V architecture, Linux as root partition (mshv) and the boot sequence.
• Docker: Running, building and publishing Docker images and containers.

Programming

• C: History and standards of the C language.
• Data Structure & Algorithms
  • Index: Table of contents of data structure and algorithm notes.
  • Linked List: Doubly linked list implementation, using an example from CS144.
  • Queue: Queue implemented with arrays and lists (outline only).
• SQL: MySQL notes, currently only installation heading.
• Linux Programming Interfaces: Points to the book The Linux Programming Interface.
• Design Patterns: Top 10 embedded design patterns (hardware proxy, ISR, ring buffer, state machine, ...) and the Reactor/Active Object patterns.
• Multi-threads: Link to Oracle's multi-threaded programming guide.
• Perf: Using perf to monitor and record system performance events.

IC Design

• Static Timing Analysis: Basic definitions of static timing analysis and STA in Xilinx Vivado.
• FPGA
  • Xilinx IPCore: Xilinx IP core usage, e.g. configuring Clocking Wizard dynamically over AXI4-Lite.

Computer Architecture

• ISA: Instruction set architecture notes (placeholder).

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17work in progress

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  Use GIMP for scaling figure (Folow instructions in Photos/ResizingPhotos from help.ubuntu.com).

• This document is writen in both Vietnamese and English.