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metal2oxide
Associate II
Aug 6, 2021 11:52 AM UTC
Question

STM32WB55 CPU2 flash size

How much flash memory is allocated for CPU2 flash and is it possible to write a RF firmware without involvement of CPU2

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3 replies

TDK
Aug 6, 2021 2:06 PM UTC

CPU2 is not designed to run user code. It is allocated the second half of the flash by default, although this is adjustable.

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BSANT.17
Associate II
Aug 6, 2021 2:23 PM UTC

Hi,

Allocation depends on RF stack you choose. You can find RF firmware size on %HOMEPATH%\STM32Cube\Repository\STM32Cube_FW_WB_V1.12.1\Projects\STM32WB_Copro_Wireless_Binaries\STM32WB5x\

I think you can't use RF with CPU1 only.

metal2oxide
Associate II
Aug 9, 2021 8:52 AM UTC

what is the minium allocation which needs to be done for second core. I want CPU1 core to use the max flash