When booting a 3B from an SSD the difference was quite noticeable. I'm still waiting for my 02W but based on my experience USB booting the 3B you'd need a significantly faster USB drive to notice any difference over a good A1 rated micro SD card (like the SanDisk Ultra A1 series cards I use). On the Pi4's USB 3.0 there can be an advantage, but on the Pi02W's USB 2.0 the difference would probably not be noticeable. I wonder whether – apart from being able to use different media – will there be any (potential) speed gain by choosing an USB medium vs. Gonna need one of the engineers form RPT/RPF to comment in order to get a definitive answer. Your PSU isn't up to the job of powering the zero2W and your USB drive.
#PLANEPLOTTER AN RPI DUMP CODE#
The burned in (and unchangeable) bootloader code in the SoC doesn't handle the OTG port well.Your OTG adapter (assuming you're using one or USB device if you're not) is not pulling the ID pin low.the official Pi zero one) pulls the ID pin low when connected. This implies that the ID pin is both present and not pulled low so the controller comes up in device mode.Ī correctly wired OTG adapter (e.g. The zero2W is described as having an OTG USB port. The 3B/3B+/3A+ have this pulled low to indicate host mode on the PCB as the USB A female does not have that pin (it's stil exposed by the SoC).
There is one hardware difference between the 3B/3B+/3A+ and the zero2W that might be a factor: the ID pin in the micro USB connector. Try with just bootcode.bin on the SD card. It seems like the Zero 2 basically has to have a microSD card inserted to boot-is there any other way? But when I rebooted, the green LED didn't come on at all and there was no output over HDMI.