Arduino for STM32

Released without RTOS support ... boo. :(

And M0+ cores are adequate but nothing to get excited over.

Upper clock is listed as 133 MHz. The 2x PIO is ok, but Cypress PSoC is been doing this for years, and better.

The "best" advance I can read is the boost-buck integrated DC-DC supply.


yes ...

ag123 wrote: Sat Jan 23, 2021 10:28 pm and beagleboard goes risc v
https://beagleboard.org/beaglev

espressif seems also switching to riscv

https://hackaday.com/2021/01/20/raspberry-pi-enters-microcontroller-game-with-4-pico/
https://hackaday.com/wp-content/uploads/2021/01/DSCF2185_featured.png?w=800

looks awesome, RPI finally get their hand into microcontrollers. A $4 dual M0 core 264kB sram 2MB flash USB support, I think it's ...

Using Google's site-centric approach:
https://www.google.com/search?r&q=cheap+electronic+parts+%22australia%22+site%3Aeevblog.com&oq=cheap+electronic+parts+%22australia%22+site%3Aeevblog.com


Ray

Ah, find it
https://www.eevblog.com/forum/chat/purchase-of-electronics-components-in-australia ...

Hi, I moved to Sydney this year, and I decided to play with microcontrollers in my spare time. I used to buy them in taobao when I was in china where there are infinity supplement of them. I've tried aliexpress here, but the ship and deliver time can be up to 1 or 2 months, sometime I can't even ...

The STM Official core for Arduino is a set of wrappers around industrial-strength commercial code and is suitable for newbies as well as seasoned programmers. It allows projects to utilize Arduino methodology for prototyping under ArduinoIDE and allows professionals to move to the STM complete ...

It's not that tricky.
digitalWriteFast(digitalPinToPinName(pin),val);

This actually works, thank you. To tell you the truth I'm confused. Aren't digitalWrite already calling digitalWriteFast? How they are making difference?


Edit: I've write a sketch to compare with different method, only to ...

but for some reasons O2 and LTO seems not working on ST core so I don't know what that will be.

Don't know why it does not work on your side. Which arm non eabi you used ?

I think I'm using the 1.9.0 STM core from the Board Manager so the arm toolchain come with is 9.2.1-1.1.
The O2 works ...

Try

digitalWriteFast(PC_13,HIGH);
digitalWriteFast(PC_13,LOW);


Yes that would do the work. But it's a bit tricky as it does not use the same pinname. If someone's really in need for IO speed they probably manipulate port register instead. Just for compatible reasons if digitalWrite with ...

I have question about the 2 cores too, is there a test for performance? Which one is overall faster? And the storage/memory consumption?


To my knowledge, there is no direct comparison.
Consider the monolithic nature of libmaple (Roger's core), my suspicion is that Roger's core will be the ...