How to boot code from Sector 5 on Nucleo-F446RE after reset?

[Shreayas_Acharaya]

I'm using a Nucleo-F446RE board and have successfully flashed my application code to Sector 5 of the internal flash memory. The code runs correctly right after flashing, but it does not run after a reset or power cycle.

It seems the MCU still boots from the default start address (Sector 0), and doesn't automatically jump to Sector 5.

:question_mark:My main questions are:

1. How can I make the STM32F446RE boot from Sector 5 after every reset?

2. Is it necessary to place a custom bootloader at Sector 0 that manually jumps to the application code at Sector 5?

3. Is there any other way?

Any guidance would be very helpful.

Thanks!

[mƎALLEm]

Hello,

Did you set the vector table according to that new address?

Did you update the linker file according to that new address?

[Shreayas_Acharaya]

Yes i done these steps:

[mƎALLEm]

And if you use the default address: 0x0800000, do you have the same behavior?

[Shreayas_Acharaya]

No, with 0x0800000 it works fine.