stm32g431 boot 0 pb8

[omid hamdi]

how disable boot 0 pin8 i used this pin for input make problem to boot from flash how can disable any condition mcu boot from flash not check this pin when reset

[Tesla DeLorean]

You've post this 6 times, please don't do that. Edit posts if you need to add or change details.

Check if there are Option Byte settings to fix nBOOT, or similar

[omid hamdi]

I SEND ONE TIME 6 TIME GOT MASAGE TRAY AGAIN

I USED PB8 FOR INPUT WHEN RESET IF THIS PIN HIGH NOT BOOT FROM INTERNAL FLASH I TRY TO FINED WAY HOW CANCEL THIS PIN NO ANY EFECT ON BOOT ADDRESS ALL CONDITION BOOT FROM INTERNAL FLASH MEMORY

[Shirley.Ye · Accepted solution]

you can set the related option bytes to avoid the boot pin impact.

you can check the Boot configuration part of the reference manual.

nBOOT0 FLASH_OPTR[27] set to 1, and nSWBOOT0 FLASH_OPTR[26] set to 0 will make the chip boot from main flash and regard less of the boot pin.

[omid hamdi]

is possible example software give me how to do it becuse after reset cpu go to one address start

nSWBOOT0 FLASH_OPTR[26]  and nBOOT0 FLASH_OPTR[27]  this register or flash address must write ?

[Shirley.Ye]

you can use the cubeprogrammer to do the option byte configuration​

[omid hamdi]

thanks fixed my problems