[RPi issue] Teensy 3.1 is randomly freezing
LATER EDIT:
It was a Raspbery Pi (raspbian) issue. Teensy is working just perfect.
==
Hello,
I using Teensy 3.1 as the core of my solar battery charger/monitoring device. It has a serial connection with a Raspberry Pi, used as a remote interface (VNC).
Few minutes ago, the connection with the Teensy has dropped and even after rebooting the RPi for a couple of times (remotely) the serial connections remained closed ("no /dev/ttyACM0" stuff).
That was the second crush this year. It seems to occur randomly, after few months of perfect behaviour.
The only remedy is to (remotely, again, as the physical access is complicated) rewrite the hex file (stored on RPi) then the Teensy it's visible again as a (USB) serial device.
What could be the reason for this strange behaviour? The power supply is common for both Teensy and Rpi and it's very stable and well filtered.
Actually, I don't know if Teensy is really freezing or is just a (USB) connection problem but I have no other means to communicate with Teensy during these "blackouts".
Assuming there was a software problem with RPi drivers & such, how come I could actually rewrite the hex file, even if Teensy is not shown as a (USB) serial device?
And, like I've just said, after reflashing the code, the serial connection is working without any further reboots of RPi.
Any thoughts are highly appreciated.
LATER EDIT:
It was a Raspbery Pi (raspbian) issue. Teensy is working just perfect.
==
Hello,
I using Teensy 3.1 as the core of my solar battery charger/monitoring device. It has a serial connection with a Raspberry Pi, used as a remote interface (VNC).
Few minutes ago, the connection with the Teensy has dropped and even after rebooting the RPi for a couple of times (remotely) the serial connections remained closed ("no /dev/ttyACM0" stuff).
That was the second crush this year. It seems to occur randomly, after few months of perfect behaviour.
The only remedy is to (remotely, again, as the physical access is complicated) rewrite the hex file (stored on RPi) then the Teensy it's visible again as a (USB) serial device.
What could be the reason for this strange behaviour? The power supply is common for both Teensy and Rpi and it's very stable and well filtered.
Actually, I don't know if Teensy is really freezing or is just a (USB) connection problem but I have no other means to communicate with Teensy during these "blackouts".
Assuming there was a software problem with RPi drivers & such, how come I could actually rewrite the hex file, even if Teensy is not shown as a (USB) serial device?
And, like I've just said, after reflashing the code, the serial connection is working without any further reboots of RPi.
Any thoughts are highly appreciated.
Last edited: