UPDATE
problem solved
we eventually found that the problem was caused by windows driver update. the solution to it is quite easy as following. and also the driver package is attached for your convenience.
solution:
(pre step... disconnect your internet to prevent windows from auto fetching driver)
step 1, Goto device manager
step 2, show all the hidden devices
step 3, delete all the serial/comport devices
step 4, delete all the usb serial devices (including driver)
step 5, connect the boards to usb
step 6. update driver
(step 6.5 for some computer you will need to reboot the system to take effect)
step 7. wala
video is being made .. will be uploaded soon
the following content was for logging purpose and just in case.. it is a workaround for this case.. the solution above should solve the problem
I recently have a new batch of BLGC to my door. and I found these along with some other people's having a similar/same USB glitch. After an entire day's work. I still have not identify what exactly caused the glitch. But I do find a workaround so people can still use the boards.
Glitch symptom:
when connected to usb, changed port to proper com1-5. the GUI stuck at reading value forever. meanwhile the arduino ide does not want to upload firmware to it.
(but according to reports from customer. buyer of same batch said different. some works just ok. some does not. I also suspect it might has todo with
...Continue Reading