Boot from the bootloader with nucleo h7s3l8

[Daewoong]

Hi all,

I am using the NUCLEO-H7S3L8 board, and trying to boot MCU from the bootloader.

Based on the reference manual, the conditions for that at the MCU reset :

PRODUCT_STATE = Open

NVSTATE = OPEN

BOOT0 = High

I checked PRODUCT_STATE = Open at the option byte tab of STM32CubeProgrammer. 

I checked NVSTATE = OPEN (0xB4) at the REG tab of STM32CubeProgrammer. 

BOOT0 is made high by hardware.

I thought that with this the MCU should boot from the bootloader. But actually it boot from the flash 0x0800.0000.

Did I miss something ? Please kindly advise what to check further.

Thanks in advance.

[NagaGayathri]

Hi Daewong,

I can't answer your question but I just wanted to know how did you program the flash. Do we have option in Cube programmer ?? 

[gmn]

Watching this tread.  Mine is also set to 0x0800 for STM32H755 and AN2606 table 2, pattern 10, says 0x1FF0.

Just to confirm, you are looking at boot_addr0 in BOOT_CURR and BOOT_PRGR in registers for peripheral Flash.  Correct?

[Pavel A.]

@gmn You have H755 but this question is about H7S. Please open a new thread.

[Daewoong]

Hi NagaGayathri

There was no problem when flashing with debugger or cube programmer.