Hi, I wanted to design a custom HAT using RM520N-GL for my RK3588 based SBC but I had some doubts regarding implementing the power sequence needed for module. I intent to use the module on the PCIe Gen2 port of the SBC (from RK3588’s combo PHY) for which I guess I need to change using one or two AT commands (I hope I’m not wrong though). Now, as shown in below image a power sequence is necessary for the board to be detected on the PCIe, right?
Now, can someone just clarify if the FULL_CARD_POWER_OFF# and RESET# both has to be driven by GPIO of host? because both the pins have internal pull resistor so wouldn’t they be set to a specific volt already during power up?