Hi I had a few follow-up questions about the Pin States on Power-up of the Nano:
- Are there any specific pins that need to be floated during powerup, is there somewhere in the design guide I can reference, we are seeing issues with reliable power-up from board to board and what to confirm we are correctly setting the states of the pins?
2.Should FORCE_RECOVERY* be connected as open-drain and floating during boot-up?
- We see that SHUTDOWN_REQ* goes to 5V during power up is this expected behavior?
- Is there any concern with providing 3.3V to PMIC_BBAT prior to booting up the Nano or enabling the VDD_IN 5V rail?
Specifically regarding SHUTDOWN_REQ* when we externally power off the Nano can the carrier board assert SHUTDOWN_REQ*?