[Dprglist] CircuitPython for NUCLEO STM32L476RG

[David P. Anderson]

Kumar,

My encoder code was basically cloned from this example:

https://petoknm.wordpress.com/2015/01/05/rotary-encoder-and-stm32/

dpa


On 10/27/21 10:33 AM, Doug Paradis via DPRGlist wrote:
>
> */[EXTERNAL SENDER]/*
>
> Kumar,
>          See STM32L475RG datasheet sections 3.24.2 and 3.24.4 to see 
> which timers support the encoder mode. Here are some links to get you 
> started: 
> https://deepbluembedded.com/stm32-timer-encoder-mode-stm32-rotary-encoder-interfacing/ 
> <https://deepbluembedded.com/stm32-timer-encoder-mode-stm32-rotary-encoder-interfacing/> 
> and https://www.st.com/resource/en/application_note/dm00042534-stm32-crossseries-timer-overview-stmicroelectronics.pdf 
> <https://www.st.com/resource/en/application_note/dm00042534-stm32-crossseries-timer-overview-stmicroelectronics.pdf> and 
> https://www.st.com/content/ccc/resource/training/technical/product_training/group0/2f/ec/a2/2a/74/48/4c/67/STM32G4-WDG_TIMERS-General_Purpose_Timer_GPTIM/files/STM32G4-WDG_TIMERS-General_Purpose_Timer_GPTIM.pdf/jcr:content/translations/en.STM32G4-WDG_TIMERS-General_Purpose_Timer_GPTIM.pdf 
> <https://www.st.com/content/ccc/resource/training/technical/product_training/group0/2f/ec/a2/2a/74/48/4c/67/STM32G4-WDG_TIMERS-General_Purpose_Timer_GPTIM/files/STM32G4-WDG_TIMERS-General_Purpose_Timer_GPTIM.pdf/jcr:content/translations/en.STM32G4-WDG_TIMERS-General_Purpose_Timer_GPTIM.pdf> .
>
>       There are several YouTube videos also. Use search terms: STM32, 
> Timers, Quadrature Encoders, Encoder Mode.
>
>        STM32CUBEMX should be a good tool to help set up the timers. 
> David Ackley and David Anderson most likely have example code that 
> they may share.
>
> Regards,
> Doug P.
>
> On Mon, Oct 25, 2021 at 9:59 AM Thalanayar Muthukumar via DPRGlist 
> <dprglist at lists.dprg.org <mailto:dprglist at lists.dprg.org>> wrote:
>
>     Have any of you worked with CircuitPython (not Micropython) on any
>     of the STM32 boards? The reason I ask is that for some of the
>     peripheral boards like motor controllers from Adafruit, they are
>     supported on CircuitPython and not MicroPython.
>
>     These (https://circuitpython.org/downloads?q=STM32
>     <https://secure-web.cisco.com/1zGRxQj7lnUAF8FIMDnpNJtkEVIES2uGOECh8MUVTI1e_eSsuiW-gSWEqWZ3ZQrnFTMdtCBeOSbulG5EMhEZ5JGvEkbbN4IqLOnYByvtLWujnXJrKLmCZ1uMLrpxJGfeu7UZY-9hjdMJwEnHT2T_AfDQnN90hXOp_EeE51ukd6q6ZTCqBBEWLEKHInj-Egd6ViOrGG7wd6Tl15ssepftVu6axpi8U1Lm0D7jAfUC4lHuSwZPk85QYbOKZb_a0ni2M90Q9xts64xc9w46_cTF-Ifm7raO_5NWzM-fphX5cNhc/https%3A%2F%2Fcircuitpython.org%2Fdownloads%3Fq%3DSTM32>)
>     are the STM32 boards supported by CircuitPython and
>     here
>     (https://circuitpython.readthedocs.io/en/7.0.x/ports/stm/README.html
>     <https://secure-web.cisco.com/1E3_w710TGBDXrI8NrzhP6jll84149E0LlO1VNltkK8f3imUH1fRrgfMlVLnmBURFBumDYAgyIN5rsGkTvJKfNu4x_Riq9E7aj5GOD9-XGOD3oBWPVeLTPNOkuebyzTqxVIwTp_lZrUjjaE1eBmmcCV6krsSZtI2VJAM4tJhENTULto53CVfea6Nh9B1TodkotNOSScYBbANfh9mHg1wDxFpZ4Hm-xyhXsTgC3GyGTuHkceTb7SJRhpCpjTtzn-XC-EFabAbG597OWjVOyR9oEAWlklv-Xe3DeXn0rD0OlSc/https%3A%2F%2Fcircuitpython.readthedocs.io%2Fen%2F7.0.x%2Fports%2Fstm%2FREADME.html>)
>     is guidance on how to support new STM32 boards in CircuitPython.
>
>     During the weekend, I was able to get my NUCLEO board working with
>     I2C OLED and BNO055, thanks to help from Jim Merkle and other
>     folks from the Personal Robotics and Adafruit Discord Servers.
>
>     Regards.
>     - Kumar
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