Lup Yuen Lee 李立源 @lupyuen@qoto.org

GitHub Actions will run our Automated Test every day ... For Apache #NuttX RTOS on #Ox64 BL808 Emulator

Article: https://lupyuen.codeberg.page/articles/tinyemu3.html#daily-automated-testing

Bread Machine #Sourdough ... Much better thanks to "The Sourdough Framework"! 👍

Recipe: https://lupyuen.codeberg.page/articles/sourdough.html

We run an "Expect" Script to do Automated Test of Apache #NuttX RTOS on #Ox64 BL808 SBC

Article: https://lupyuen.codeberg.page/articles/tinyemu3.html#scripting-the-expected

Every day we're auto-building Apache #NuttX RTOS for #Ox64 BL808 #RISCV SBC @PINE64 ... Here's how we test NuttX on Ox64 Emulator automatically after building

Article: https://lupyuen.codeberg.page/articles/tinyemu3

Here's the Memory Map for #Ox64 BL808 SBC ... Which we replicated for Ox64 Emulator

Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#appendix-risc-v-addresses-for-ox64

Thanks @tllim for the chat ... Looking forward to lots more @PINE64 Gadgets on Apache #NuttX RTOS! 👍

Apache #NuttX on #Ox64 BL808 Emulator makes a #RISCV ECALL System Call ... Here's why it fails

Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#machine-mode-vs-supervisor-mode

#Ox64 BL808 Emulator runs Apache #NuttX RTOS in the Web Browser ... Just compile #TinyEMU Emulator to WebAssembly (with Emscripten)

Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#emulator-in-the-web-browser

#Ox64 BL808 Emulator hits a #RISCV ECALL Exception in Apache #NuttX RTOS ... Let's find out why

Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#risc-v-exception-in-emulator

UART Output works OK in #Ox64 BL808 Emulator ... But ECALL crashes with a #RISCV Exception

Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#emulator-prints-to-console

Emulating the UART Output for #Ox64 BL808 SBC

Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#emulate-the-uart-output

Here's how we intercept the #BL808 UART Registers ... And emulate the #Ox64 UART Controller

Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#intercept-the-uart-registers

Super excited to be a Mentor for #GSoC 👍

Google Summer of Code: https://summerofcode.withgoogle.com/

Let's emulate the UART Registers for #BL808 SoC inside #Ox64 SBC

Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#uart-registers-for-bl808-soc

Apache #NuttX RTOS boots OK in our #Ox64 BL808 Emulator!

Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#run-tinyemu-emulator

#RISCV "Wait for Interrupt instruction (WFI) provides a hint to the implementation that the current hart can be stalled until an interrupt ... so a legal implementation is to simply implement WFI as a NOP" 🤔

Source: https://github.com/riscv/riscv-isa-manual/releases/download/Priv-v1.12/riscv-privileged-20211203.pdf

Fixing the #RISCV Addresses in TinyEMU Emulator ... To match the Bouffalo Lab #BL808 SoC inside #Ox64

Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#change-risc-v-addresses-in-tinyemu

Upcoming #RustLang support in #Zephyr OS

Source: https://github.com/zephyrproject-rtos/zephyr/issues/65837

Let's install TinyEMU #RISCV Emulator ... And tweak it to emulate #Ox64 BL808 SBC

Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#install-tinyemu-emulator

🤔 "Summarise the discussion on #RustLang in #NuttX"