Sean Kim's Blog
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  • Basic Keywords for Developing a Linux Device Driver

    3 min read   ·   November 23, 2025

      ·   TIL

  • fork() vs. clone(): What is the difference?

    2 min read   ·   November 17, 2025

      ·   TIL

  • External Clock Will Not Work Unless You Have A External Hardware

    2 min read   ·   November 14, 2025

      ·   TIL

  • Clock Sources and Types in STM32

    3 min read   ·   November 13, 2025

      ·   TIL

  • Real Time Clock in STM32

    1 min read   ·   November 11, 2025

      ·   TIL

  • What is MQTT?

    1 min read   ·   November 09, 2025

      ·   TIL

  • What is FPU and why does it cause assembler error?

    5 min read   ·   November 08, 2025

      ·   TIL

  • LightWeight IP (lwIP)

    2 min read   ·   November 07, 2025

      ·   TIL

  • Why does it display white screen after removing SysTick_Handler?

    6 min read   ·   October 06, 2025

  • How does PlatformIO Project Work?

    4 min read   ·   October 04, 2025

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☰ Categories

Categories

RTOS
  • Part 1. How to Set FreeRTOS in Your Project
  • How to Use SEGGER Trace Tool for Debugging
  • Context Switching in RTOS
  • Schedulers in FreeRTOS
  • Semaphore vs. Mutex
  • Solutions for Priority Inversion
  • Illustrated Priority Inversion
System Programming
Firmware
  • Bootloader with OTA Phase 5 - Part 2: OTA Handler Implementation
  • Bootloader with OTA Phase 5: OTA Protocol Implementation - Part 1
  • Bootloader with OTA Phase 4.1: Debugging the CRC Mismatch
  • Bootloader with OTA Phase 4: Implementing Persistent Boot State
  • Bootloader with OTA Phase 3: Dual Bank Selection
  • Debugging Bootloader: Part 2
  • Debugging Bootloader: Part 1
  • Bootloader with OTA Phase 2: Minimal Bootloader
  • Bootloader with OTA Phase 1: Flash Operations
  • Building My First Firmware Project with Claude
TIL
  • Basic Keywords for Developing a Linux Device Driver
  • fork() vs. clone(): What is the difference?
  • External Clock Will Not Work Unless You Have A External Hardware
  • Clock Sources and Types in STM32
  • Real Time Clock in STM32
  • What is MQTT?
  • What is FPU and why does it cause assembler error?
  • LightWeight IP (lwIP)
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