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Secure Flash Area Modification on STM32WB15CC ?

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hanyang
Associate

‎2025-03-21 2:38 AM - last edited on ‎2025-03-21 2:54 AM by

I am using the STM32WB15CC and encountered an issue when my program exceeded 112KB (0x1C000), causing the flashing process to fail. I noticed that the memory region starting from 0x0801C000 is set as a secure flash area.

I would like to know if it is possible to modify this secure flash area. If so, could you please provide guidance on how to make the necessary modifications?

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STTwo-32
ST Employee

‎2025-03-21 6:34 AM

Hello @hanyang 

To optimize the available memory for a dedicated application, the linker file must be updated. But the end of available Flash memory address can be moved only up to the SFSA address.

Best Regards.

STTwo-32

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

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STTwo-32
ST Employee

‎2025-03-21 6:34 AM

Hello @hanyang 

To optimize the available memory for a dedicated application, the linker file must be updated. But the end of available Flash memory address can be moved only up to the SFSA address.

Best Regards.

STTwo-32

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

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