Teensy 3.2 serial port not recognized.

Status
Not open for further replies.
N

narrab

New member
I have a Teensy 3.2 thats serial port is not recognized when plugged in to either a Mac or Windows PC. If I press the on board button the teensy program recognizes the button press. Therefore I am unable to program the Teensy using the Serial port as a com port does not show up. However if I set the USB type in the Arduino IDE to Flight Sim Controls I can upload sketches via the Arduino IDE. I have a number of Teensy 3.1's that work fine on the same computers, so it seems the issue is with the Teensy 3.2.

Any suggestions on how to get this Teensy's serial port to be recognized?
 
You need to set Tools > USB Type to Serial.

When it's set to non-serial types, Teensy does not become a serial device at all.
 
Paul,

Thanks for the response.

I realize that USB type should be set to Serial and have a few other a Teensy 3.1's that work correctly. I was seeing strange non responsive behavior from the Teensy 3.2 as described in another post that I found on this forum.

https://forum.pjrc.com/threads/30080-quot-Bricked-quot-Teensy-3-2-and-recovery

I was actually able to upload a blink program via Arduino when the device was set to Flight Sim control, yet could not upload a file when USB was set to Serial. After spending some time it now seems to be working correctly.
 
Narrab,

Thanks for posting this, I was pulling my hair out until I find your post! I had the exact same problem with my custom Teensy 3.2. My board had the same symptoms as if the VBAT line was not connected to 3.3V where the USB is recognized with the normal beeps, but no serial port shows up on the Arduino IDE. I did verify that there was 3.3V on the VBAT line, so I knew that wasn't the issue.

Finally, I found your post and I was able to set my USB Type to Flight Sim control and successfully program the Blink sketch. Then I tried loading my own sketch and that also worked successfully. I then checked the Arduino IDE and noticed that the serial port magically appeared and the USB Type had switched over to Serial.

Not sure what's going on there, but everything seems to be working normally at this point.
 
Status
Not open for further replies.
Back
Top