Hello!!! Is about VBAT pin of the STM32L4R5. I bounded this pin to the system VDD (3V3). When I run the program using the STM32CubeIDE+STLINK-V2 it seems to be OK. But, when I try to run alone, it seems to lost the reset entry point. What can I do?

INaka.1 · ‎2021-12-19

Tesla DeLorean · ‎2021-12-19

Seems entirely unrelated to the VBAT pin.

What did you do with the BOOT0 pin? Where did you locate your code?

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INaka.1 · ‎2021-12-20

Thank you for your attention. I disregard this pin!!! In this application this pin I left open. Can I solve this problem programming the FLASH_OPT register? I don´t know how to change this value inside STM32Cube_IDE. Do you have some advice?

Thank you again,

Best regards, Ilson

Tesla DeLorean · ‎2021-12-20

>>Can I solve this problem programming the FLASH_OPT register?

Possibly, you're in the best position to test these things for yourself.

You should be able to check and change these settings from within your own code, or configure via STM32 Cube Programmer.

CubeIDE, not sure, not my tool.

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