STM32F103 SMBus Communication via CubeMX

BY · ‎2024-05-10

Hi there,

I am a new at SMBus communication. I design a board. Board have STM32F103 MCU and BQ40Z80. I need to make a communication between STM32 MCU and BQ IC but I couldn't find parameter settings in CubeMX.

Software is STM32CubeMX Version 6.11.1

I also attached a picture that shows there is no parameter settings for SMBus.

If anyone has sample code for SMBus communication that will be helpful.

Best Regards,

BY

SofLit · ‎2024-05-10

Hello,

SMBus is configurable in that menu:

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SofLit · ‎2024-05-10

Umm well now I understood the request ..

Meanwhile, you can also refer to that package: X-CUBE-SMBUS and AN4502 "STM32 SMBus/PMBus™ expansion package for STM32Cube™"

Need toc check internally why there is only one setting in the parameters to set for SMBus!

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BY · ‎2024-05-10

By the way, BQ40Z80 interface is SMBus v.1.1

Before I sent first post I already installed X-CUBE-SMBUS.

Waiting for your feedback.

Tesla DeLorean · ‎2024-05-10

I recall there being examples for the SPL (pre HAL)

https://github.com/selat/stm32-smbus

Use Google, search on GitHub, heck read/review RM0008

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BY · ‎2024-05-10

Oh thanks. I already read that but will try to research again.

SofLit · ‎2024-05-13

Update: the fix is planned to be fixed in the next version CubeMx 6.12.0

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SofLit · ‎2024-06-11

FYI,

Internal Ticket 181150 has been already created for follow-up.

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