Lup Yuen Lee 李立源 @lupyuen@qoto.org

Simplest #NimLang Program that will run on Apache #NuttX RTOS

Article: https://lupyuen.codeberg.page/articles/nim.html#basic-nim-from-scratch

#Ox64 BL808 SBC can boot Apache #NuttX RTOS from Flash Memory ... By replacing U-Boot Bootloader 👍

Source: https://github.com/lupyuen/lupyuen.github.io/issues/24

How we Blink a Simulated LED ... On Apache #NuttX Emulator for #Ox64 BL808 SBC

Source: https://github.com/lupyuen/quickjs-nuttx#simulate-the-led-on-ox64-emulator

Let's blink an LED on #Ox64 BL808 #RISCV SBC @PINE64 ... With #NimLang and Apache #NuttX Real-Time Operating System

Article: https://lupyuen.codeberg.page/articles/nim

How Small is #QuickJS JavaScript Engine?

Source: https://github.com/lupyuen/quickjs-nuttx#how-small-is-quickjs

#QuickJS JavaScript Engine ... Computing the Heap Memory used 🤔

Source: https://github.com/lupyuen/quickjs-nuttx#how-small-is-quickjs

#QuickJS Linker Map ... Visualised with linkermapviz 👍

Source: https://github.com/lupyuen/quickjs-nuttx#how-small-is-quickjs

Here's how we add an LED Driver to #NuttX QEMU #RISCV ... For testing #QuickJS and other Blinkies

Source: https://github.com/lupyuen/quickjs-nuttx#add-led-driver-to-nuttx-qemu-risc-v

#RancherDesktop stopped working on my 12-year-old Mac ... Had to switch QEMU x64 to an older version 🤔

Source: https://gist.github.com/lupyuen/fba7aedaf6012f58f92948839d2d4c6c

#QuickJS JavaScript Engine blinks a Simulated LED ... On Apache #NuttX Emulator 🎉

Source: https://github.com/lupyuen/quickjs-nuttx#quickjs-blinks-the-led-on-ox64-emulator

Bare Metal Experiments on #Ox64 BL808 SBC ... With Apache #NuttX RTOS

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

#QuickJS JavaScript Engine blinks the LED ... On Apache #NuttX Emulator! 🎉

Source: https://github.com/lupyuen/quickjs-nuttx#quickjs-blinks-the-led-on-ox64-emulator

Adding ioctl() to #QuickJS JavaScript Engine ... So we can control #NuttX Devices

Source: https://github.com/lupyuen/quickjs-nuttx#add-ioctl-to-quickjs-for-nuttx

#QuickJS calls POSIX open() on Apache #NuttX RTOS 🎉 ... Up Next: Adding ioctl() to control NuttX Devices

Source: https://github.com/lupyuen/quickjs-nuttx#quickjs-calls-posix-open-on-nuttx

Let's write a #NuttX App for #Ox64 BL808 SBC

Article: https://www.hackster.io/lupyuen/8-risc-v-sbc-on-a-real-time-operating-system-ox64-nuttx-474358#toc-write-a-nuttx-app-7

#QuickJS JavaScript Engine runs OK on Apache #NuttX RTOS for QEMU #RISCV 🎉 ... Remember to increase the NuttX Stack Size 👍

Source: https://github.com/lupyuen/quickjs-nuttx#nuttx-stack-is-full-of-quickjs

Now we boot Apache #NuttX RTOS 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-nuttx-on-ox64-6

#QuickJS on Apache #NuttX RTOS ... Hitting unexpected Sentinel Values 🤔

Source: https://github.com/lupyuen/quickjs-nuttx#atom-sentinel-becomes-0xffff_ffff

"Expect" Script for repeatedly testing QuickJS on Apache #NuttX (QEMU) ... Super efficient 👍

Source: https://github.com/lupyuen/quickjs-nuttx/blob/master/nuttx/qemu.exp

Mapping POSIX File Descriptors to ROM FS Files ... With a #ZigLang ArrayList

Source: https://github.com/lupyuen/tcc-riscv32-wasm/blob/romfs/zig/tcc-wasm.zig#L166-L328