Teensy disappearing from USB

Status
Not open for further replies.
O

oudevolvo

Member
Hi, unfortunately I do not have much details or logs, but hope you can help me.
I am working on a Mac with OS 10.15.6 Catalina using Visual Studio Code with Platform IO with a Teensy 3.6 and the Teensyloader.
For a while uploading works OK and then sometimes immediately, sometimes after a couple of upload it fails.
In VS Code I get
No Teensy boards were found on any USB ports of your computer.
Please press the PROGRAM MODE BUTTON on your Teensy to upload your sketch.
*** [upload] Error 1
The when I press the button, sometimes it works and sometimes I get the "Download error" message in the TeensyLoader.
Powering the Teensy off and on is not sufficient. I really need to keep uploading and pressing the upload button before it successfully uploads and says 'Reboot OK'.
But often that does not last.
The serial port then also is not accessible, no Teensy on any of the ports / the Teensy port not listed.
Any ideas on how to resolve this?
 
A "Download Error" in Teensy Loader might mean your Mac is having USB communication issue with Teensy.

Best to start with the USB cable and any USB hubs between Teensy and your Mac.
 
Thanks!
The code is quite bulky so not easily shared and interpreted.
I do have quite some "nodes" in between.
Teensy -> to USB A cable -> USB A in panel socket to USB B out -> USB B cable to USB A -> dock for USB A to USB C
Will try and see what happens if I eliminate most of them.
 
Status
Not open for further replies.
Back
Top