Lup Yuen Lee 李立源 @lupyuen@qoto.org

To emulate #PinePhone UART Output in Unicorn Emulator ... We intercept all writes to UART Memory-Mapped I/O

Source: https://github.com/lupyuen/pinephone-emulator#emulate-uart-output-in-unicorn-emulator

Apache #NuttX RTOS on Unicorn Emulator waits forever for UART Controller to get ready ... Let's emulate the #PinePhone UART Controller with Memory Mapped I/O

Source: https://github.com/lupyuen/pinephone-emulator#unicorn-emulator-waits-forever-for-uart-controller-ready

Let's emulate Apache #NuttX RTOS for #PinePhone on Unicorn Emulator ... And watch what happens!

Source: https://github.com/lupyuen/pinephone-emulator#run-apache-nuttx-rtos-in-unicorn-emulator

Beware of my Twitter impersonator ... I'm MisterTechBlog, not MisteRRTechBlog 🤔

Use Unicorn Emulator's Code Hook ... To intercept every Arm64 Instruction that will be emulated in #RustLang

Source: https://github.com/lupyuen/pinephone-emulator#code-execution-hook-for-arm64-emulation

Good morning Sunny Singapore

To emulate Arm64 Memory-Mapped I/O in #RustLang ... Just use a Memory Access Hook in Unicorn Emulator

Source: https://github.com/lupyuen/pinephone-emulator#memory-access-hook-for-arm64-emulation

#STM32 USB Driver for Apache #NuttX RTOS ... How it enumerates USB Devices

Article: https://lupyuen.github.io/articles/usb2?11#stm32-usb-driver-for-nuttx

Emulate Arm64 Machine Code in #RustLang with Unicorn Emulator

Source: https://github.com/lupyuen/pinephone-emulator

What's inside a USB Controller Driver for Apache #NuttX RTOS

Article: https://lupyuen.github.io/articles/usb2?10#usb-drivers-in-nuttx

Understanding #PinePhone's USB Controller ... By comparing the #FreeBSD Driver with the Mentor Graphics USB Doc

Article: https://lupyuen.github.io/articles/usb2?9#inside-the-freebsd-driver

Inside the #FreeBSD Driver for #PinePhone USB Controller

Article: https://lupyuen.github.io/articles/usb2?9#inside-the-freebsd-driver

GitHub Code Search uncovers the FreeBSD Driver for #PinePhone USB Controller

Article: https://lupyuen.github.io/articles/usb2?8#freebsd-usb-driver

Finding a Reference Driver for #PinePhone's USB Controller ... With GitHub Code Search

Article: https://lupyuen.github.io/articles/usb2?7#search-for-usb-driver

#PinePhone's USB Controller works like the Mentor Graphics USB Controller ... Except the USB Registers are scrambled (like eggs)

Article: https://lupyuen.github.io/articles/usb2?6#document-the-usb-controller

🤔 "2001: A Space Odyssey"

https://en.m.wikipedia.org/wiki/2001:_A_Space_Odyssey_(novel)

#PinePhone's Allwinner A64 USB Docs are horrigibly lacking ... Thankfully we have the USB Docs by Mentor Graphics

Article: https://lupyuen.github.io/articles/usb2?6#document-the-usb-controller

Quectel EG25-G LTE Modem connects to #PinePhone over USB ... That's why we need a PinePhone USB Driver for Apache #NuttX RTOS

Article: https://lupyuen.github.io/articles/usb2?5#lte-modem-talks-usb

#PinePhone talks to its Quectel EG25-G LTE Modem over USB

Article: https://lupyuen.github.io/articles/usb2?5#lte-modem-talks-usb

Inside #PinePhone is Quectel EG25-G LTE Modem ... For 4G Voice Calls, SMS, Mobile Data and GPS

Article: https://lupyuen.github.io/articles/usb2?4#quectel-eg25-g-lte-modem