I finished my esk8 build two weeks ago and for the most part everything has been working fine. (build thread coming at some stage )
Today while trying to get bluetooth to work, one of my two FOCBOX’s stopped responding and is no longer recognized by the PC.
When powered, the blue light comes on, the red light flashes once faintly and no green light.
Its not recognized in the Device manager but in know the cable and everything else works because the other FOCBOX connects just fine.
I have spent a few hours reading but can’t seem to find any other threads with this problem
Just want to know: your other FOCBOX connects to Windows without any issue?
Your other FOCBOX also have 3.3xx FW?
Your other one shows green light?
Have you connected them via CANBUS?
Have you disconnected the CANBUS once without removing it from both of the FOCBOX together?
Thats a Yes for all everything. They have both been working perfectly for 2 weeks.
Regarding the canbus. It was hot glued in place on both ends. I’ve only removed one end while trying to diagnose this problem. It’s still plugged into the one that works, is that a bad thing?
OHHH! Man I think you just fried CAN transceiver of one of the FOCBOX.
It must be the one on which CANBUS cable stay connected.
@JohnnyMeduse What do you think?
I just did a firmware update to 3.102 and unplugged the can bus connector from slave while leaving it plugged into the master. Unplugged the receiver from master then upgraded firmware on master, redid motor detection. Turned it off, replugged the receiver and did the app / ppm settings. Then connected usb to slave, did the detection and slave app. Then turned everything off and reconnected the cable coming from master into slave. Started everything up again and all good. Did a test for 10 miles, all ok.
Why would a can cable connected to a focbox but not connected to the other fry the can bus? Makes no sense.
As far as I know what you don’t want is a can cable connecting two focboxes while only one is powered. A cable that is not terminated shouldn’t fry a can bus chip.
@JohnnyMeduse
it happens with one of the customer, I am not tech Junkie, not aware of the technicalities but I think he Might blew something which have 5V.
For software, I just read the whole thread now, Sounds like it’s FW issue.
He need to use ST link to flash it back to default one
)
Today while trying to get bluetooth to work, one of my two FOCBOX’s stopped responding and is no longer recognized by the PC.
When powered, the blue light comes on, the red light flashes once faintly and no green light.
Its not recognized in the Device manager but in know the cable and everything else works because the other FOCBOX connects just fine.