[chbot] AI help with STM32

[Mark Atherton]

Ha! Well done Richard.

.. and thanks Charles.

-Mark


On 03-Jul-25 2:32 PM, Richard Jones wrote:
> I used the HAL to configure registers as needed, then read out the 
> results in code to write the instructions to load registers directly for 
> speed. In my case I printed the results as 'C' code using printf ( using 
> bit band or register writes ) so I just cut and pasted the printed 'C' 
> code into the application. Not at all portable, and not obvious to read, 
> but I achieved the speed that I needed at the time.
> 
> Cheers
> 
> Richard
> 
> On Thu, Jul 3, 2025 at 12:56 PM Charles Manning <cdhmanning at gmail.com 
> <mailto:cdhmanning at gmail.com>> wrote:
> 
>     OK, I can't help in your stated quest of an AI assistant, but here
>     is how I tend to go about STM32 development which might get what you
>     want.
> 
>     First I use the CubeMX tool to do all the primary set up (peripheral
>     initialisation, clock trees, dma channel assignment etc).
>     For some of the peripherals, the performance is not too critical and
>     the HAL podge is not too podgy.  The HAL can work there.
>     Then there are the few bits where the HAL is too bloaty and/or slow
>     and/or missing the features you want. That is where I write my own
>     drivers and bypass the HAL.
> 
>     It is OK to mix and match like that. It means you only need to go
>     datasheet mining in a few critical places.
> 
>     Obviously you don't want to do things like write to the
>     peripheral at the same time via HAL and your own code, but it is OK
>     to use HAL to set things up, then apply your own tweaks then use
>     your own code to do all the read/write stuff etc.
> 
>     This has worked well for me in the past and gives me the best of
>     both worlds (well most of the time anyway).
> 
> 
>     On Thu, Jul 3, 2025 at 10:49 AM Mark Atherton <markaren1 at xtra.co.nz
>     <mailto:markaren1 at xtra.co.nz>> wrote:
> 
>         Hi Charles,
> 
>         You are quite right, I could just dig straight into the
>         documentation,
>         but at last count, there are something over 2,600 pages
>         associated with
>         the STM32G491.
> 
>         I was rather hoping to implement then experiment with some new
>         ideas,
>         rather than go into battle over trying to get peripherals
>         configured.
> 
>         I am also quite shameless in terms of asking for help in any
>         form that
>         might be available.
> 
>         Anyway, can anyone recommend an AI assistant that might be
>         useful in my
>         journey ?
> 
>         Thanks,
> 
>         Mark
> 
>         ----------
> 
>         Charles Manning said
> 
>         What's wrong with the grey stuff sitting on your shoulders?
> 
>         The HAL normally has multiple modes of operation, including DMA
>         options,
>         but if you're pushing the micro hard the HAL is often a bit
>         bloated and
>         slow.
> 
>         _______________________________________________
>         Chchrobotics mailing list Chchrobotics at lists.ourshack.com
>         <mailto:Chchrobotics at lists.ourshack.com>
>         https://lists.ourshack.com/mailman/listinfo/chchrobotics
>         <https://lists.ourshack.com/mailman/listinfo/chchrobotics>
>         Mail Archives: http://lists.ourshack.com/pipermail/chchrobotics/
>         <http://lists.ourshack.com/pipermail/chchrobotics/>
>         Meetings usually 3rd Monday each month. See http://kiwibots.org
>         <http://kiwibots.org> for venue, directions and dates.
>         When replying, please edit your Subject line to reflect new
>         subjects.
> 
>     _______________________________________________
>     Chchrobotics mailing list Chchrobotics at lists.ourshack.com
>     <mailto:Chchrobotics at lists.ourshack.com>
>     https://lists.ourshack.com/mailman/listinfo/chchrobotics
>     <https://lists.ourshack.com/mailman/listinfo/chchrobotics>
>     Mail Archives: http://lists.ourshack.com/pipermail/chchrobotics/
>     <http://lists.ourshack.com/pipermail/chchrobotics/>
>     Meetings usually 3rd Monday each month. See http://kiwibots.org
>     <http://kiwibots.org> for venue, directions and dates.
>     When replying, please edit your Subject line to reflect new subjects.
> 
> 
> _______________________________________________
> Chchrobotics mailing list Chchrobotics at lists.ourshack.com
> https://lists.ourshack.com/mailman/listinfo/chchrobotics
> Mail Archives: http://lists.ourshack.com/pipermail/chchrobotics/
> Meetings usually 3rd Monday each month. See http://kiwibots.org for venue, directions and dates.
> When replying, please edit your Subject line to reflect new subjects.