Lup Yuen Lee 李立源 @lupyuen@qoto.org

Fixing QuickJS JavaScript Engine to build OK for Apache #NuttX RTOS

Source: https://github.com/lupyuen/quickjs-nuttx#fix-the-missing-functions

How we boot #Linux on #Ox64 BL808 SBC

Article: https://www.hackster.io/lupyuen/8-risc-v-sbc-on-a-real-time-operating-system-ox64-nuttx-474358#toc-boot-linux-on-ox64-5

Will QuickJS JavaScript Engine run on Apache #NuttX RTOS? 🤔

Source: https://github.com/lupyuen/quickjs-nuttx

Checking #Ox64 BL808 that we flashed OpenSBI and U-Boot Bootloader correctly 👍

Article: https://www.hackster.io/lupyuen/8-risc-v-sbc-on-a-real-time-operating-system-ox64-nuttx-474358#toc-verify-opensbi-and-u-boot-4

TCC Compiler in #WebAssembly gets a Major Makeover ... With ROM FS Filesystem and #ZigLang

Source: https://github.com/lupyuen/tcc-riscv32-wasm

#RISCV T-Head C9xx Cache Sync in #Linux Kernel ... Mystery solved 👍

Source: https://graphics.social/@daridrea/111892608849325322

Apache #NuttX Drivers bolding going to Strange New Worlds ... #ZigLang and #WebAssembly! 👍

Source: https://github.com/lupyuen/tcc-riscv32-wasm#puts-and-exit-work-ok-in-tcc-webassembly-and-nuttx-emulator-yay

Let's flash OpenSBI and U-Boot Bootloader to #Ox64 BL808 SBC

Article: https://www.hackster.io/lupyuen/8-risc-v-sbc-on-a-real-time-operating-system-ox64-nuttx-474358#toc-flash-opensbi-and-u-boot-3

Apache #NuttX Apps will terminate by calling the Exit System Call with #RISCV ECALL

Source: https://github.com/lupyuen/tcc-riscv32-wasm#implement-exit-with-nuttx-system-call

ROM FS Filesystem looks surprisingly readable 👍

Source: https://github.com/lupyuen/tcc-riscv32-wasm#inside-a-rom-fs-filesystem

TCC #WebAssembly with ROM FS Filesystem ... Works great with Apache #NuttX Emulator 👍

Source: https://github.com/lupyuen/tcc-riscv32-wasm#puts-and-exit-work-ok-in-tcc-webassembly-and-nuttx-emulator-yay

#Ox64 BL808 SBC won't work with some USB Serial Adapters ... Here's how we test

Article: https://www.hackster.io/lupyuen/8-risc-v-sbc-on-a-real-time-operating-system-ox64-nuttx-474358#toc-test-the-usb-serial-adapter-2

#RISCV T-Head C9xx Cache Sync in #Linux Kernel ... Trying to understand how it works 🤔

Source: https://lkml.org/lkml/2021/6/6/98

Horrigible Hacking of TCC #RISCV Compiler for #NuttX System Call 🤔

Source: https://github.com/lupyuen/tcc-riscv32-wasm#implement-puts-with-nuttx-system-call

Decent Demo of Building and Testing an Apache #NuttX App in the Web Browser ... Finally! 🎉

Source: https://github.com/lupyuen/tcc-riscv32-wasm#puts-and-exit-work-ok-in-tcc-webassembly-and-nuttx-emulator-yay

#Ox64 BL808 SBC uses 2 Serial Ports: 1️⃣ Flashing UART 2️⃣ Serial Console ... Don't get them mixed up! 🙏

Article: https://www.hackster.io/lupyuen/8-risc-v-sbc-on-a-real-time-operating-system-ox64-nuttx-474358#toc-flashing-uart-vs-serial-console-1

Here's how we Open and Read a ROM FS File in #ZigLang ... Thanks to #NuttX ROM FS Driver

Source: https://github.com/lupyuen/tcc-riscv32-wasm#open-a-rom-fs-file-in-zig

#Ox64 BL808 SBC has One 64-bit #RISCV Core and Two 32-bit Cores ... We'll run #NuttX and Linux on the 64-bit T-Head C906 Core

Article: https://www.hackster.io/lupyuen/8-risc-v-sbc-on-a-real-time-operating-system-ox64-nuttx-474358#toc-ox64-sbc-and-bl808-soc-0

#ZigLang mounts a ROM FS Filesystem in the Web Browser ... Thanks to Apache #NuttX RTOS 👍

Source: https://github.com/lupyuen/tcc-riscv32-wasm#mount-the-rom-fs-filesystem-in-zig

#RISCV, #ZigLang and Apache #NuttX RTOS on Hacker News! 🎉

Source: https://news.ycombinator.com/item?id=39245664