I am wondering how we can add a push button on the custom new design PCB to reset RPi CM4. In the documentation I found the following statement.
"RUN_PG: This pin when high signals that the CM4 has started. Driving this pin low resets the module. This should be done with
caution; if files on a filesystem are open they will not be closed."
I can add a bush button along with a capacitor and resistor for RUN_PG pin.
In normal state, this pin will be pulled up to +5V through a resistor and upon reset, this pin will be short to ground that will reset the RPi CM4.
Is there any other option to reset or this is enough ?
What can we do with Global_EN pin, is that input pin or output ?
"RUN_PG: This pin when high signals that the CM4 has started. Driving this pin low resets the module. This should be done with
caution; if files on a filesystem are open they will not be closed."
I can add a bush button along with a capacitor and resistor for RUN_PG pin.
In normal state, this pin will be pulled up to +5V through a resistor and upon reset, this pin will be short to ground that will reset the RPi CM4.
Is there any other option to reset or this is enough ?
What can we do with Global_EN pin, is that input pin or output ?
Statistics: Posted by TommyBills — Tue Jun 24, 2025 12:41 pm