Lup Yuen Lee 李立源 @lupyuen@qoto.org

X Window System at 40

https://blog.dshr.org/2024/07/x-window-system-at-40.html

USB Power Delivery on #RISCV CH32V003

https://eeucalyptus.net/2024-05-13-usb-pd-2.html

Our #RustLang App compiles for Software Floating-Point, but Apache #NuttX RTOS expects Hardware Floating-Point ... Let's fix this with a Rust Custom Target for QEMU #RISCV

https://lupyuen.codeberg.page/articles/rust4.html

65816 TV-toy Controller

https://oldvcr.blogspot.com/2024/06/two-tiny-65816-dtv-consoles.html

InfiniEmu: WebAssembly Emulator for #PineTime smartwatch

https://infiniemu.pipe01.net/

Retro Handhelds Weekly (Allwinner H700)

https://retrohandhelds.gg/retro-handhelds-weekly-edition-2/

How to use SPI devices in Apache #NuttX RTOS

https://www.embeddedrelated.com/showarticle/1673.php

#RustLang Apps won't compile for Apache #NuttX RTOS on #Ox64 BL808 SBC ... Let's fix this in the next article! 👍

Article: https://lupyuen.codeberg.page/articles/rust4.html#rust-build-for-64-bit-risc-v

Just discovered the magic of JavaScript BigInt 👍

Source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt

"Writing GUI apps for #Windows is painful" (ImGui)

https://tulach.cc/writing-gui-apps-for-windows-is-painful/

Inside a $1 Radar Motion Sensor (RCWL-0516)

https://10maurycy10.github.io/projects/motion_sensor_hacking/

Motherboards with Loongson CPUs now shipping ($373)

https://www.tomshardware.com/pc-components/motherboards/motherboards-and-systems-with-chinas-loongson-cpus-now-shipping-to-us-customers-options-start-from-dollar373-for-a-dtx-board-with-processor-and-cooler

Debugging #STM32 UART and #ESP32

https://blog.supermechanical.com/2024/06/27/debugging-hardware-is-hard/

Static Allocation in External RAM on #ESP32

https://danielmangum.com/posts/static-alloc-external-ram-esp32/

"Raffles Renounced: Towards a Merdeka History" (#Singapore)

https://share.libbyapp.com/title/8960561

#RustLang Apps run OK on Apache #NuttX RTOS for QEMU ... After adding the Rust Custom Profile for Double-Float

Article: https://lupyuen.codeberg.page/articles/rust4.html#nuttx-links-ok-with-rust

"Create your first UI project with #LVGL" (Apache #NuttX RTOS)

https://youtube.com/watch?v=nvTnY1YhX_k

Economics of Writing Technical Books

https://architectelevator.com/strategy/book-author-economics/

Milk-V Jupiter: Mini ITX board with #RISCV SpacemiT K1/M1

https://liliputing.com/milk-v-jupiter-is-a-mini-itx-board-with-a-spacemit-k1-m1-risc-v-processor/

Here's how we download and boot Apache #NuttX RTOS on Oz64 #RISCV SBC (Sophgo SG2000)

Article: https://lupyuen.codeberg.page/articles/sg2000.html#appendix-apache-nuttx-rtos-for-pine64-oz64-sbc