We want to design one carrier board for TX2 module, it’s required that we must use “auto power on” enabled, that means our product does not need power button. Also, we must implement the function of entering USB recovery mode, then, the recovery button and the reset button are needed. After checking the development kit’s design files, I want to know if we can simply design the circuit that only 2 buttons provide the signal control to RECOVERY and RESET pins to TX2 module, following the requirement to enter the USB recovery mode?
Sure, just keep 2 buttons of recovery and reset for it. Power button is not necessary if auto-power-on is enabled by design. The system can enter recovery mode by pressing recovery button all along and then insert power supply or press reset button if powered on already.