Arduino for STM32

At last I got the PSRAM working!

I've done a demo for Arduino IDE here.

BTW: There isn't any trace of PSRAM in the W806 SDK. You have to search over the W801 SDK...

I've just published all the details to build the Azz!Duino board here.



BTW: I haven't had time to play with the PSRAM. The PSRAM can be used as SPI or QSPI and on the board is connected for QSPI (but probably can be used as SPI as well).

I was quite annoyed by the "manual" upload requiring pressing the RST button twice ( :lol: ), so I did "a walk" inside Arduino IDE and the tools used in the W80x "core" to find a solution and.... I found it!

First of all only the W801 based board on Aliexpress has the needed reset circuitry (you ...

Just for fun ( :lol: ) I've done an Arduino Due sized PCB using a W806 and called it Azz!Duino ( :mrgreen: ):

https://i.postimg.cc/wT3Fvzwr/Azz-Duino-PCB.jpg

The PCB allows two options: PSRAM and external 9-12V supply.

I've just soldered a first board (no option installed) and it seems work as ...

For those interested here the schematic of the board with the W801 ( HLK-W801-KIT-V1.0.pdf ) and some manuals: http://82.157.145.101/download/toolkits/winnermicro/w801/,
and here manuals on the C-sky and the W806, including the W806 Special Function Registers manual: http://82.157.145.101/download ...

...this looked unusually easy...

Exactly ;)

Here a short video I did a few years ago showing the complete soldering process (using a TS100 iron + BC2 tip):

https://www.youtube.com/watch?v=JlKLheYB8z0
https://i.postimg.cc/d3NzxMNr/Screenshot-from-2022-10-16-11-57-11.png


The only "difficulty ...

I've soldered some SMT boards but up to now never with a QFN, so this one can be a good occasion to try...

This is my last toy (with a STM32F030R8T6):

https://i.postimg.cc/QdykqFNV/Studio-68.jpg

I use the hot air gun only for the smaller parts (resistors, resistor arrays, caps, diodes, leds ...

I wrote my w801 journey here, if anyone is interested: https://dannyelectronics.wordpress.com/2022/10/14/w801-first-impression/


Thanks for sharing. Very interesting!

My W801 board is on the way together with a bunch of W806 MCUs (chip only). They have a "nice" QFN-56 package with a 0.35mm pitch ...

It seems it has 2 USB I/F, and one is USB HOST

It seems they are making an Arduino core for the W801 available!!!

See here.



This could change "current scenario" a lot...