ChibiOS Free Embedded RTOS

Ciao Giovanni,

I would like to understand more about your comment in that thread where you advised on thread scheduling:
https://forum.chibios.org/viewtopic.php?t=5408#p37219


#define CH_CFG_ST_FREQUENCY 10000 -> 1000 (10000 is too high without tick-less mode)
#define CH_CFG_ST_TIMEDELTA 2 -> 0 ...

One resource that has been useful to me in the past when struggling with DMA and cache coherency on H7:
m

One thing you can try is to use spiPolledExchange instead of spiExchange , my understanding is the former doesn't rely on the DMA so it would help disambiguate where the problem is coming from ...

Sounds good - trading some compilation time in that case is totally fine. Thank you Giovanni.

Seeing how halconf.h is laid out with preprocessor switches like:
#if !defined(HAL_USE_SIO) || defined(__DOXYGEN__)
#define HAL_USE_SIO FALSE
#endif

I expected to be able to set HAL_USE_SIO in the Makefile (e.g. USE_OPT+= -DHAL_USE_SIO=TRUE) as an alternative to editing the halconf.h file.
I ran ...

I am wondering about ADC5 support : I see earlier in this thread that support was not added at the same time as ADC 1...4. What's different about ADC5 that we can't mimic what's been done for the other ADC in its group, namely ADC3 and ADC4?

Just got my hands on a H723ZG nucleo 144.
Current H7 demo cover H743, H750, H755 but there aren't any for H72x.
Is there anything specific to that family I should know before embarking on creating a new demo project, along the lines of what's described there ?
m
I am thinking about compatibility ...

Thank you Giovanni.
For reference, I recompiled using -Os, here the output that we can compare to the others :

text data bss dec hex filename
41740 220 130848 172808 2a308 build/ch.elf

Done
11:17:41 Build Finished. 0 errors, 0 warnings. (took 15s.792ms)

For reference ...

I am giving ChibiStudio 2021-07 a spin.
First of all, thanks for the update !

I was checking the demo project RT-STM32F446RE-NUCLEO64 and noticed a significant binary size difference between the two gcc versions.

For gcc9:
text data bss dec hex filename
[b]46872 220 130848 177940 2b714 ...

Incidental question: I don't see a 20.3.4 version released from the github mirror:
https://github.com/ChibiOS/ChibiOS/releases
When is github updated?

Just came upon that promising feature.
Is there a time-line for inclusion of SIO in a release? I do not think I have seen that yet.