Lup Yuen Lee 李立源 @lupyuen@qoto.org
- Pronouns/Gender/Sexuality
- He/Him/They, Bisexual/Asexual 🇸🇬
- Date of Birth
- 1969
- Articles
- https://lupyuen.org
IoT Techie and Educator / Apache NuttX PMC
Joined Jan 2020
"it is very well possible to run #NimLang code ... on small #Embedded microprocessors with only a few kilobytes of memory"
https://nim-lang.org/docs/nimc.html#nim-for-embedded-systems
"#ZigLang provides modern syntax, a great type system, complete control over memory allocations"
YoWASP: WebAssembly #FPGA packages for Yosys, nextpnr
Participate in #NimLang Community Survey
https://nim-lang.org/blog/2023/11/17/community-survey-2023.html
Cost model for #NimLang: "designed for #Embedded, hard real-time systems"
https://nim-lang.org/blog/2022/11/11/a-cost-model-for-nim.html
TK: "most popular Internet Country Code"
"The Deep Sky" by Yume Kitasei
"Xamalicious is a .NET-based #Android Backdoor ... within apps developed using the open-source Xamarin framework, making the analysis of its code more challenging"
Show thread
Here's why we mapped a Level 2 Page Table for the Interrupt Controller in #Ox64 BL808 SBC
Article: https://lupyuen.codeberg.page/articles/mmu.html#appendix-fix-the-interrupt-controller
#NuttX LED Driver for #Ox64 BL808 SBC ... Created with a little help from U-Boot Bootloader
Source: https://github.com/lupyuen/nuttx-ox64#led-driver-for-ox64-bl808
Beginner's Guide to HackRF (Software-Defined Radio)
Mister #FPGA retro gaming
#RISCV Address Translation for Sv39 Memory Mgmt Unit
Article: https://lupyuen.codeberg.page/articles/mmu.html#appendix-address-translation
Lup Yuen Lee 李立源
boosted
@tasket @caligari @lupyuen It's not difficult to follow a signal. Ransomware attacks aren't going to be far behind as some of those systems use multiple wireless sensors.
They are difficult to open without using a Dremel. I've cut myself a few times with Xacto blades trying to get through that thick sonic welded plastic shell. At least the app wasn't too difficult to peek at. White listing devices and some other things that might possibly be going on.
There has to be a way to get in without bleeding everywhere. 
Blinking an LED in #NimLang ... With Apache #NuttX RTOS
Source: https://github.com/lupyuen/nuttx-nim#blink-an-led-with-nim
Indra Nooyi: "My Life in Full" (PepsiCo Ex-CEO)
How Apache #NuttX RTOS swaps the #RISCV Page Tables for Kernel and Apps
Article: https://lupyuen.codeberg.page/articles/mmu.html#swap-the-satp-register
- Pronouns/Gender/Sexuality
- He/Him/They, Bisexual/Asexual 🇸🇬
- Date of Birth
- 1969
- Articles
- https://lupyuen.org
IoT Techie and Educator / Apache NuttX PMC
Joined Jan 2020
