Hi,
I was going through the setup of ECM Mode . When I got to the AT#REBOOT step, I got a strange zsh error saying the command wasn’t found (I think, I didn’t record it, sorry).
Anyway, all my USBs have disappeared:
ls /dev/tty*
/dev/tty /dev/tty12 /dev/tty17 /dev/tty21 /dev/tty26 /dev/tty30 /dev/tty35 /dev/tty4 /dev/tty44 /dev/tty49 /dev/tty53 /dev/tty58 /dev/tty62 /dev/ttyS0
/dev/tty0 /dev/tty13 /dev/tty18 /dev/tty22 /dev/tty27 /dev/tty31 /dev/tty36 /dev/tty40 /dev/tty45 /dev/tty5 /dev/tty54 /dev/tty59 /dev/tty63 /dev/ttyprintk
/dev/tty1 /dev/tty14 /dev/tty19 /dev/tty23 /dev/tty28 /dev/tty32 /dev/tty37 /dev/tty41 /dev/tty46 /dev/tty50 /dev/tty55 /dev/tty6 /dev/tty7
/dev/tty10 /dev/tty15 /dev/tty2 /dev/tty24 /dev/tty29 /dev/tty33 /dev/tty38 /dev/tty42 /dev/tty47 /dev/tty51 /dev/tty56 /dev/tty60 /dev/tty8
/dev/tty11 /dev/tty16 /dev/tty20 /dev/tty25 /dev/tty3 /dev/tty34 /dev/tty39 /dev/tty43 /dev/tty48 /dev/tty52 /dev/tty57 /dev/tty61 /dev/tty9
I’ve tried rebooting and powering off/on. They will not come back. Suggestions?
TIA,
saeed
August 30, 2024, 9:13am
2
Hello,
Which Raspberry Pi are you using?
How is the behavior when the HAT is removed from the GPIO header and connected via USB cable.
Kindly share an image of your whole setup.
saeed:
Which Raspberry Pi are you using?
How is the behavior when the HAT is removed from the GPIO header and connected via USB cable.
Kindly share an image of your whole setup.
I’m using a RPi 4B+
I powered the setup via the official RPi adapter.
Removing the HAT and leaving it only to be powered by the usb connection doesn’t change the results:
ls /dev/tty*
/dev/tty /dev/tty12 /dev/tty17 /dev/tty21 /dev/tty26 /dev/tty30 /dev/tty35 /dev/tty4 /dev/tty44 /dev/tty49 /dev/tty53 /dev/tty58 /dev/tty62 /dev/ttyS0
/dev/tty0 /dev/tty13 /dev/tty18 /dev/tty22 /dev/tty27 /dev/tty31 /dev/tty36 /dev/tty40 /dev/tty45 /dev/tty5 /dev/tty54 /dev/tty59 /dev/tty63 /dev/ttyprintk
/dev/tty1 /dev/tty14 /dev/tty19 /dev/tty23 /dev/tty28 /dev/tty32 /dev/tty37 /dev/tty41 /dev/tty46 /dev/tty50 /dev/tty55 /dev/tty6 /dev/tty7
/dev/tty10 /dev/tty15 /dev/tty2 /dev/tty24 /dev/tty29 /dev/tty33 /dev/tty38 /dev/tty42 /dev/tty47 /dev/tty51 /dev/tty56 /dev/tty60 /dev/tty8
/dev/tty11 /dev/tty16 /dev/tty20 /dev/tty25 /dev/tty3 /dev/tty34 /dev/tty39 /dev/tty43 /dev/tty48 /dev/tty52 /dev/tty57 /dev/tty61 /dev/tty9
Attached is a picture. The 3 wires hanging off the RPi on the right are from a fan that is disconnected.
saeed
August 30, 2024, 9:39am
4
Could you please try with the USB cable that came with the HAT?
Damn. The USBs went away again. I tried a new RPI 4B+ with the same HAT and got the same results.
It looks like the HAT is the culprit.
-T
I’ll return it to Amazon for a new one.
saeed
September 4, 2024, 2:13pm
8
Let me know if the issue is with the USB cables only or the HAT.
It was the HAT. It happened again with a separate cable and the included one.
saeed
September 6, 2024, 4:08pm
10
Could you please share you order number in dm?
