Arduino_Core_STM32 VS PlatformIO

There's nothing stopping Arduino releasing an STM32-based dev board - but they simply haven't yet, and there's stacks of stm32 boards around that you can add an Arduino support core for if you like.

https://github.com/stm32duino/Arduino_Core_STM32 look this

It shows this https://github.com/stm32duino/Arduino_Core_STM32/archive/main.zip getting to 97% then skipping to the next unpacking, then it seems to fail thereafter.

You can program an STM32 MCU with Arduino, just add the community developed board definitions and HAL to the Arduino IDE.

If the mcu disables itself after it's one use you could program it via arduino to reset it or give it a new purpose. Reprogramming the chip will likely be the best use, those components are only a few cents it's more effort than it's worth to save them. Repurposing the board is what I'd try to do, weather that's via replacing the stm32 or reprogramming it is up to you.

I am using the stm32duino core for the Arduino Ide (https://github.com/stm32duino/Arduino_Core_STM32). My settings are the following:

(official Arduino HAL) STM32

For the ESP32 in read mode, we've successfully developed a project using PlatformIO that accepts the key during build time and stores it in memory.

Check out Zephyr OS and Platform IO. Zephyr is part of the Linux foundation and has similarities to Linux with how it performs hardware abstraction (device tree). Platform IO integrates with other frameworks including mbed and Arduino.

PlatformIO together with avr-stub can be used to do source level debugging but there are some caveats.

Look into https://platformio.org/, it can abstract over a few RTOSes, and can show you which OSes work with which chips/boards.

If the HW looks like it works, you could also try alternate programming software. (e.g. TinyGo or PlatformIO)

You might have better luck with PlatformIO than the Arduino IDE; it's better at automatically choosing the serial port, though I can't say I've used it under Windows.

My other suggestion takes more work but will make your life oh so much better. Professionally I have used and highly recommend. https://platformio.org/ which is free!

Will you be doing embedded Linux? Embedded RTOS? Bare metal? Microcontrollers? SoC (say, FPGA with a hard processor core)?

You can do a lot with QEMU. https://bootlin.com/ has a lot of great, free training material.

https://bootlin.com/doc/training/embedded-linux-qemu/embedde...

is one of my favorites.

Learning to cross-compile, do embedded debugging, the process of booting an embedded system (which varies depending on the answers to the above questions), learning how to read a technical reference for the processor you’re using as well as for peripherals you’re likely to interact with - SPI, i2c, UART, maybe PCIe, are all handy skills. Learn a bit about JTAG, hardware, reading schematics, etc. Even being able solder is helpful.

There may be books (I had a great embedded Linux book when I started) but there are lots of online materials too. Check out https://platformio.org/

There are fun embedded boards and projects for microcontrollers too - micropython on an rpi pico, tinygo, eLua, etc.