stm32 flashing tool on ARM Linux via i2c

[abhijith_raj]

Hi,
I'm looking for an STM32 flashing tool that runs on ARM Linux for use on an embedded board. In our setup, I have a processor and an STM32G491RET microcontroller connected via I2C.

Now I need a command-line tool that can run on the processor to flash the MCU over I2C.

Is there any tool available that supports this use case?

[mƎALLEm]

Hello,

The only flashing tool available from ST is the STM32CubeProgrammer and unfortunately it's not supported by ARM architecture host according to this thread: Support for arm linux?

[Andrew Neil]

Is there any intention to support it on ARM-based Linux?

Any update/progress on the internal ticket 176491 mentioned by @Maryem  here?

As I said there, it could be quite useful - and the request does keep coming up ...

@abhijith_raj - meanwhile, the I2C bootloader protocol is described in Application Note AN4221, I2C protocol used in the STM32 bootloader.

[mƎALLEm]

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@Andrew Neil wrote:

Is there any intention to support it on ARM-based Linux?

Any update/progress on the internal ticket 176491 mentioned by @Maryem  here?

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Checking the internal progress on that ticket: no news. 

Escalated this request too.

[Pavel A.]

CubeProgrammer does not support I2C interface, even on x64. So find or make a custom tool. Here you can find help for creating a custom tool.

[Tesla DeLorean · Accepted solution]

Perhaps check on stm32flash, that used to support early I2C

https://github.com/ARMinARM/stm32flash

https://github.com/stm32duino/stm32flash?tab=readme-ov-file

If you're a software engineer, perhaps review AN4221 and code a solution

AN3155 is for the UART protocol, examples for that can be found on GitHub, for example the Arduino MKR WAN 1300 board.

[Andrew Neil]

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@Tesla DeLorean wrote:

AN3155 is for the UART protocol, examples for that can be found on GitHub, for example the Arduino MKR WAN 1300 board.

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Would that also be in STM32Duino: https://github.com/stm32duino/Arduino_Core_STM32 ?

[Tesla DeLorean]

It might, but it's all getting a big old, I couldn't surface anything that recent and I2C, and stm32flash was definitely iterated for the USART protocol originally.

The MKR WAN variant was designed more for integration into an MCU project than a Linux or Win32 application. It targeted a STM32L072/L082 

The I2C connectivity also tends to point to an MCU project. So basic familiarity with I2C protocols should give a foundation just to implement the mechanics expressed in AN4221