Lup Yuen Lee 李立源 @lupyuen@qoto.org

Updates for #Zephyr OS on #RISCV

https://riscv.org/blog/2024/05/recent-developments-in-the-zephyr-port-for-risc-v/

Can we run JavaScript on Apache #NuttX RTOS? Let's find out with #QuickJS JavaScript Engine and #Ox64 BL808 SBC!

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

"Attached is the RISC-V Disassembly for Apache #NuttX RTOS ... How does bl808_head call nx_start_application?" 🤔

Source: https://gist.github.com/lupyuen/cb14b278d2749fc83d3709f5d1f604e4

Visualizing Algorithms for Rate Limiting (API endpoints)

https://smudge.ai/blog/ratelimit-algorithms

"Raspberry Pi has a strong track record of revenue growth and profitability. For the year ended 31 December 2023, revenues were $265.8 million, with gross profit of $66.0 million"

https://www.londonstockexchange.com/news-article/market-news/expected-intention-to-float/16470316

Platform-Level Interrupt Controller for #RISCV Sophgo SG2000 / Milk-V Duo S isn't documented ... So we snoop around the Linux Device Tree

Source: https://github.com/lupyuen/nuttx-sg2000#nuttx-shell-runs-ok-on-sg2000

Blinking a Simulated LED in the Web Browser ... With our #Ox64 BL808 Emulator

Article: https://lupyuen.codeberg.page/articles/quickjs.html#simulate-the-led-on-ox64-emulator

"Effective Machine Learning Teams" (Lean #ML)

https://share.libbyapp.com/title/10562303

Reverse-Engineering "Choplifter" (Apple II)

https://blondihacks.com/reversing-choplifter/

Booting Apache #NuttX RTOS on #RISCV Sophgo SG2000 / Milk-V Duo S ... Here's what we fixed

Source: https://github.com/lupyuen/nuttx-sg2000#nuttx-kernel-boots-ok-on-sg2000

Visualising the Heap Memory of Apache #NuttX RTOS ... With a Spreadsheet!

Article: https://lupyuen.codeberg.page/articles/quickjs.html#how-small-is-quickjs

#Linux 6.9 released (#RISCV Sophgo SG2002 / StarFive JH7110 / T-Head TH1520)

https://www.cnx-software.com/2024/05/13/linux-6-9-release-main-changes-arm-risc-v-and-mips-architectures/

"How #GPS Warfare is playing havoc with civilian life ... Military activity blamed for surge in Jamming and Spoofing incidents affecting smartphones, planes and ships"

https://www.ft.com/content/be9393db-cd63-4141-a4c8-c16b4fe1b6b0

"The first two Hubble Network Spacecraft are already in orbit and receiving #Bluetooth Signals from the ground" (#IoT)

https://spectrum.ieee.org/bluetooth-satellite

#Linux Kernel support for #Qualcomm Snapdragon X Elite

https://www.qualcomm.com/developer/blog/2024/05/upstreaming-linux-kernel-support-for-the-snapdragon-x-elite

Booting #RISCV Sophgo SG2000 / Milk-V Duo S ... With Debian #Linux on MicroSD

Source: https://github.com/lupyuen/nuttx-sg2000#boot-linux-on-milk-v-duo-s

How small is #QuickJS JavaScript Engine? Let's visualise with linkermapviz

Article: https://lupyuen.codeberg.page/articles/quickjs.html#how-small-is-quickjs

What happens if we boot #RISCV Milk-V Duo S ... Fresh from the box? Beware the Physical Switch for "RISC-V Or Arm"!

Source: https://github.com/lupyuen/nuttx-sg2000#boot-milk-v-duo-s-without-microsd

How we Blink the LED on #Ox64 BL808 #RISCV SBC ... With #QuickJS JavaScript Engine

Article: https://lupyuen.codeberg.page/articles/quickjs.html#quickjs-blinks-the-led-on-ox64-sbc