stm32 to stm32 download

If the stm32 mcu is connected as shown in the figure below,

is there a way to download fw image from the master stm32(STM32WB35) mcu to the slave stm32(STM32L0) mcu?

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Not with standard tools. You could implement the SWD protocol to transfer it from WB->L0 at great effort.

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Associate II

Thank you for your answer.

Is there an easier code among SWD protocols...?

Guru

Well some of the L0 have a UART interface on the SWDIO/SWCLK pins.

Can probably done far more efficiently, with less code, using a very high speed serial connection.

From a debugger context you'd want to expose SWDIO/SWCLK from each processor to its own set of pins/pads

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Associate II

I'm not sure what you mean. Could you explain it in more detail?

Guru

Which bit? How to transfer data over a UART?

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