martinayotte

First, let's say that overlay directory is only on Mainline kernel, it doesn't exist on Legacy kernel. Secondly, PPS is simply using a GPIO pin, it could be almost any one, as long as it is available on some header. The current overlay is defaulting to PD4 of the Euler Bus. Doing "dtc -I dtb -O dts /boot/dtb/allwinner/overlay/sun50i-a64-pps-gpio.dtbo" will display it in plain text...

https://github.com/duxingkei33/orangepi_PC_gpio_pyH3

This is true for most of the SBC with Mainline since it still under development by BootLin people ... ( some reading here : https://bootlin.com/ )

Since the Armbian doesn't have a recent "next" build in https://dl.armbian.com/orangepizero/ , you will need to build your own image using procedures explained here : https://docs.armbian.com/Developer-Guide_Build-Preparation/

I've done this fix to patches : https://github.com/armbian/build/commit/e0382d1ad2e5ac2c8d4dda814949f989812be18c#diff-33d9868ed154988dc938219a3df6f54d But I've not got chance to test it. BTW, this is for the "sunxi-next" builds ... (I will do the same for "sunxi-dev" today)

Your first screenshot shows "fs_devread read error" followed by "File not found" ... This means that your image on SDCard was badly written ! Make sure you use Etcher to write images and don't use crappy sdcards ...

Take a USB-Storage dongle, plug it on RaspberryPi USB, mount it, there will be plenty of storage space ...

There are many ways to use GPIO. You can use classic sysfs, ie : /sys/class/gpio You can also take the python Pine64 library : https://github.com/swkim01/RPi.GPIO-PineA64 You can even use that one since it has been ported for H5 with proper 64bits pointers : https://github.com/herzig/orangepi_PC_gpio_pyH5 EDIT : There is also this one coming from A64-OlinuXino : https://files.pythonhosted.org/packages/29/a8/e9ce35c362e6340713bbbffcf260c4ffca87b404d9811e5d400f33e6c5c8/pyA64-0.1.0.tar.gz

Personnally, I don't know which ones since I've never use such configuration. But you can leave the internal XR819 as AP while adding an USB WiFi dongle for the STA, you will then get both wlan0 and wlan1.

XR819 is the WiFi chip used on OPiZeroH2+. Most Armbian hate that chip since it provide poor performance, and driver is a bit crappy. STA means STATION and AP means AccessPoint. So, if you wish to have both at the same time, I doubt the driver and/or chip support both mode at the same time ... What you can do is attach a second WiFi thru USB.

I doubt any version of XR819 allows STA+AP at the same time ...

You should detailed what is that famous board and how it is connected to OPi headers. If you have it connected only on dual-header, there is no USB there, so no injection possible on those pins ...

As I said "How a GPIO connection could interact with a Linux filesystem ?" ... Impossible ! Believe me, your issue must be somewhere else : bad PSU or bad SDCard !

Euuh ??? How a GPIO connection could interact with a Linux filesystem ? Maybe you should explain in more details your observations ...

The "bs=" means "block size", it has nothing to do with "sector size" of a file system. It is only the size of the buffer used between reading the source and writing destination. Of course, a bs=4M will do the transfers faster than a bs=4096, which is not the same since the later means 4096 bytes.