I'm running the latest version (1.1.x) on a RAMPS 1.4 single extruder setup.
The board boots up and displays the expected information, including correct temperatures for the extruder and bed, updating every few seconds.
I can connect using a serial terminal, and I'm able to change the display with a 'M117 Hello' command.
However, when I try an M105 command, the response is: 'ok T: ', then about 4 seconds later the LED on the RAMPS board starts flashing quickly (perhaps 10Hz), and no more commands are processed. The LCD stops updating. I can't even re-flash the board when it's in this state; I have to power it down and start again.
I've double-checked my config file, and the fact that the temperatures initially read correctly on screen leads me to think there's no obvious error there. Can anyone help?
The board boots up and displays the expected information, including correct temperatures for the extruder and bed, updating every few seconds.
I can connect using a serial terminal, and I'm able to change the display with a 'M117 Hello' command.
However, when I try an M105 command, the response is: 'ok T: ', then about 4 seconds later the LED on the RAMPS board starts flashing quickly (perhaps 10Hz), and no more commands are processed. The LCD stops updating. I can't even re-flash the board when it's in this state; I have to power it down and start again.
I've double-checked my config file, and the fact that the temperatures initially read correctly on screen leads me to think there's no obvious error there. Can anyone help?