Are there plans to manufacture more ROCK Pi S Core SOMs? Every time I check the online shops, they are out of stock while there are plenty of non-SOM ROCK Pi S boards to buy.
And while we’re at it, I suggest the following change:
It is impossible to run the board without applying power to VCC5V0_SYS. USB_DET is therefore always about 3.2V. But generating USB_DET from VCC5V0_SYS prevents using other voltages than ~5V to power the board. I suggest to connect the USB_VBUS pin of the SoC directly to VCC_IO. That way the board can be run from much lower voltages, e.g. a single cell Li-Ion battery, without having to worry about USB VBUS detection.