Arduino for STM32

I've now combined the F103 and F303 examples into a single example with #ifdefs to cover the deltas between those two processors, moved from my DWT library to builtin delayMicroseconds() and cleaned up the CAN/GPIO peripheral init routines. I've successfully retested on F103 and F303, and am conside...

fpiSTM wrote: ↑

Wed Jan 22, 2020 10:39 am

Thanks MGeo,

About DWT, note that the core is already based on it for delayMicroseconds() arduino API

Ah thanks. Not sure how I missed that. I will migrate over to core delayMicroseconds() in place of my library implementation.

The below url's are broken in your post: I like your delay routine, using the cyclecounter :) Where does : #include " stm32_def.h " come from ?? - the Arduino libs or some local stuff ?? Thanks. I fixed the broken links above. I borrowed the DWT based delay from the contributions of others via inte...

F303CC test pictorial schematic:

I've now completed testing of the F103C8 and F303CC UAVCAN based CAN examples in the repo, so now consider the repo to be up to date for v1.8 of core. I've used a Robotdyn F303CC black pill (https://robotdyn.com/stm32f303cct6-256-kb-flash-stm32-arm-cortexr-m4-mini-system-dev-board-3326a9dd-3c19-11e9...

F103 Bluepill end-to-end CAN testing now complete. ESC values input with UAVCAN GUI are sent over CAN bus to Bluepill node, which receives and retransmits those same ESC values out over Serial. Below is a screen-cap. You can just make out the ESC input values in the "ESC Management Panel" input slid...

I still have some test work to do on the F1 serial output and test of F3 variant before I will consider the example up to date, but F1 CAN traffic appears to be working as expected. I'll update here once I get a chance to complete testing. For those looking to replicate, it is worth mentioning that ...

Here is a "Hello World" example working for libcanard based UAVCAN on Arduino_Core_STM32. I've documented the work here to remember what I did and so that others can follow if so desired. I'm a big fan of Pavel Kirienko's open UAVCAN work (https://uavcan.org/) for my needs, mostly UAVs and drones at...

You can find RAM size in the variant linker scripts, in boards.txt (https://github.com/stm32duino/Arduino_C ... boards.txt), and also in the part datasheet for your given processor.

Finally, when you compile you get a percentage of dynamic memory used in the console pane.

Pics of board, rework locations highlighted.

SB33, SP38 removed, and C22, C25 populated with 2.2uF low ESR 1206 SMD ceramic caps