Lup Yuen Lee 李立源 @lupyuen@qoto.org

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

Found the mystery T-Head C9xx Specs 🎉

https://github.com/T-head-Semi/thead-extension-spec/releases/tag/2.3.0

And apparently we can create an account here to download the C908 Manual:

https://www.xrvm.cn/product/xuantie/4106421598796451840

"Nearly half of Vulnerabilities are enabled by Insecure Exposed Functions"

https://www.horizon3.ai/analysis-of-2023s-known-exploited-vulnerabilities/

#FOSDEM 2024: Videos with Subtitles

https://jonatron.github.io/fosdem2024whisper/

Testing #NuttX on AVR32 Mcuzone avr32dev1 board

https://acassis.wordpress.com/2024/02/07/testing-nuttx-on-avr32-mcuzone-avr32dev1-board/

SOPHGO SG2000 / SG2002 AI SoC: #RISCV T-Head C906 Dual Core + Arm Cortex-A53

https://www.cnx-software.com/2024/02/07/sophgo-sg2000-sg2002-ai-soc-features-risc-v-arm-8051-cores-android-linux-freertos/

"microSD card of unknown origin is soldered onto a USB interface board to serve as makeshift NAND Storage"

https://arstechnica.com/gadgets/2024/02/rejected-chips-hidden-microsd-cards-plague-the-usb-stick-market/

Escaping from #Docker one Syscall at a time (strace)

https://snyk.io/blog/leaky-vessels-container-vuln-deep-dive/

"an effort is underway to develop a Smartphone App that is sensitive enough to accurately discern Coughs associated with TB"

https://medicalxpress.com/news/2024-02-experimental-cell-app-screen-tb.html

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

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

@daridrea This is very helpful, thank you so much! :-)

Wonder why T-Head can't document these Undocumented RISC-V Instructions in a C908 Manual (is there one?)

Our #NuttX Devs are really hurting right now 😬

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

The Bustling World: "open-world RPG set in ancient China"

https://youtube.com/watch?v=qoqZw2xZdtE

Building a Flying Umbrella (#STM32 F7 Flight Controller)

https://youtube.com/watch?v=qNTv5SgM0BM

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

[NSFW] Pet Shop Boys: "Loneliness"

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

ROM FS Filesystem looks surprisingly readable 👍

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