7.5.12 Flashing Push Button (PB1)
The flashing push button can serve as a general user-programmable button with a single press or can enable the
board's flashing mode when pressing it longer.
Figure 15. Flashing push button of the Portenta Hat Carrier
To perform flashing operations:
1. Do a long press on the PB1 push button and release it.
2. To exit from the flashing mode and restart the system with the changes made, do a single press on the PB1
push button.