vince.cimo
Well-known member
Hi guys, I've been developing on the Teensy LC using Platform IO and VSCode for some time now, but the latest version is having some strange issues which I can't seem to figure out. Basically, the Teensy sometimes refuses to be flashed and spits out a IOError: [Errno 6] Device not configured, either when trying to flash or opening the debug port. Every once in a while, it will work, but often it doesn't.
Here's the error when opening the debug port:
Exception in thread rx:
Traceback (most recent call last):
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File "/Users/macuser/.platformio/penv/lib/python2.7/site-packages/serial/tools/miniterm.py", line 445, in reader
data = self.serial.read(self.serial.in_waiting or 1)
File "/Users/macuser/.platformio/penv/lib/python2.7/site-packages/serial/serialposix.py", line 467, in in_waiting
s = fcntl.ioctl(self.fd, TIOCINQ, TIOCM_zero_str)
IOError: [Errno 6] Device not configured
This is with known code that has not had any previous issues; I've tried with 3 different Teensy LC chips and get the same result. I've also downloaded VSCode and the latest PIO version on a new computer with the same results.
Even after pressing the program button, a reflash will often not work. Also, after this situation occurs, sometimes even pressing the hardware reset button fails to reflash and I get a red 'Download Error' on the Teensy program. Any advice? I can upload the hex file that PIO is sending...very confused by this.
**UPDATE**
Ok so I've dug a little deeper and I think this has something specifically to do with the I2CT3 library and the latest version of PIO; when I disable my references to this library, everything works fine. Is there a way to go back to an old version of PIO?
Here's the error when opening the debug port:
Exception in thread rx:
Traceback (most recent call last):
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File "/Users/macuser/.platformio/penv/lib/python2.7/site-packages/serial/tools/miniterm.py", line 445, in reader
data = self.serial.read(self.serial.in_waiting or 1)
File "/Users/macuser/.platformio/penv/lib/python2.7/site-packages/serial/serialposix.py", line 467, in in_waiting
s = fcntl.ioctl(self.fd, TIOCINQ, TIOCM_zero_str)
IOError: [Errno 6] Device not configured
This is with known code that has not had any previous issues; I've tried with 3 different Teensy LC chips and get the same result. I've also downloaded VSCode and the latest PIO version on a new computer with the same results.
Even after pressing the program button, a reflash will often not work. Also, after this situation occurs, sometimes even pressing the hardware reset button fails to reflash and I get a red 'Download Error' on the Teensy program. Any advice? I can upload the hex file that PIO is sending...very confused by this.
**UPDATE**
Ok so I've dug a little deeper and I think this has something specifically to do with the I2CT3 library and the latest version of PIO; when I disable my references to this library, everything works fine. Is there a way to go back to an old version of PIO?
Last edited: