# Embedded Systems Weekly #110

Happy Friday embedded systems lovers! Did your week went well? Here, it is summer and in full honesty the vacations
are well received. Vacations or not, I hope you’ll enjoy issue #110. If you read an interesting article, please,
do not hesitate to share it with me.

Thank you to [Paul Smith](https://twitter.com/pauls_3d_things) for the header's picture.

Happy reading!

### Articles 
[How I Hacked my Car Guides: Creating Custom Firmware](https://programmingwithstyle.com/posts/howihackedmycarguidescreatingcustomfirmware/)  
Cars are fun targets to mess with. This time the author hacked the In-Vehicle Infotainment (IVI) of
his 2021 Hyundai Ioniq SEL. First, he managed to install a backdoor in the system by modifying an update of the
firmware. He discovered that the system is running [Helix by Wind River Systems](https://www.windriver.com/products/helix/automotive)
and GUI is made with [Qt5](https://doc.qt.io/qt-5/gettingstarted.html).
He finally managed to code and deploy his own Qt application. The whole series is interesting to read and it finishes
on a big achievement. Congratulations to the author!

[Rust on Espressif chips - 15-07-2022](https://mabez.dev/blog/posts/esp-rust-15-07-2022/)  
This is the quarterly update of the effort to port Rust on Xtensa-based ESP32, ESP32-SXX and ESP8266.
It is interesting to follow the work they begun to add async support with the [embassy](https://embassy.dev/)
executor. The implementation promises to get power saving automatically when there is no more
tasks to execute. Nice!

[Lessons from Writing a Compiler](https://borretti.me/article/lessons-writing-compiler)  
The author of the [Austral](https://github.com/austral/austral) compiler shares what he learned
while he wrote it. As he notes it himself at the beginning of the article, the reading is interesting
because it focuses on some practical aspects rarely addressed in classical textbooks.

[Microcode decryptor](https://github.com/chip-red-pill/MicrocodeDecryptor)  
A team of researchers has released a tool to decrypt and unpack the microcode for some low-power Intel CPUs.
This makes possible to understand how Intel has implemented various security fixes and features.
Among the security fixes you can find the one about the famous
[Spectre vulnerability](https://en.wikipedia.org/wiki/Spectre_(security_vulnerability)).
Among the features you can dig into the implementation of Intel TXT, SGX or VT-x.

[The 1802 Membership Card](http://www.sunrise-ev.com/1802.htm)  
It is a computer entirely built with 1980's parts and technology, using only common low-cost
through-hole parts. Build around the RCA 1802 microprocessor, it is autonomous: no
need of a modern PC or a proprietary software. At a max price tag around $80, it's the
opportunity to build and learn a computer that you can completely understand.

### News / Business
[Volkswagen's Software Unit CARIAD to Co-Develop a System-on-Chip With STMicroelectronics for the Automaker's Future Software-defined Vehicles](https://www.futurecar.com/5523/Volkswagens-Software-Unit-CARIAD-to-Co-Develop-a-System-on-Chip-With-STMicroelectronics-for-the-Automakers-Future-Software-defined-Vehicles)  
Volkswagen strategy for the next 5/10 years looks rock solid. On one hand, it builds a tight cooperation
with STMicroelectronics and TSMC to secure its chips supply chain. One the other hand, it bases the VW.OS
on the pre-certified QNX OS for safety.

### Tools / Libraries
[BASIC Interpreter for the Raspberry Pi Pico](https://geoffg.net/picomite.html)  
The PicoMite is a Raspberry Pi Pico running the free MMBasic interpreter. A compatible implementation
of the BASIC language with many additional features.

### Misc
[CHIPnGo](https://github.com/kurtjd/CHIPnGo)  
A custom-built CHIP-8 hand-held gaming console powered by a STM32 microcontroller.