12
Boot options
By default, the B-G474E-DPOW1 boots on the STM32G474RET6 internal Flash, thanks to the nSWBOOT0
option bit set to zero. Thus, by default, the Boot procedure is completely managed by software.
But, as the PB8 pin of the STM32G474RET6 is also free for use by default, the user can choose any boot
mechanism based on the BOOT0 pin function (In that case, do not forget to set correctly the relevant option bytes
linked to booting procedure):
•
Use PB8 as BOOT0 pin and fit pull-down R83, or
•
Use PB8 as BOOT0 pin and add any pull-down or pull-up resistor connected to pin 21 of CN9 extension
connector.
UM2577
Boot options
UM2577
-
Rev 2
page 24/54
