search

LaserWeb / LaserWeb4

Collaborative effort on the next version of LaserWeb / CNCWeb
GNU Affero General Public License v3.0
713 stars 192 forks source link

[LaserWeb 4 - bug] needs restart after grbl update #548

Closed FlailAway closed 5 years ago

FlailAway commented 5 years ago

[bug] Hi, not a major issue, but I am getting grbl-Mega to work on a RAMPS board and had the need to upload (using Arduino-IDE) slight changes to the cpu_map.h etc files, many times.

After an upload I would reboot the Mega but LW would connect for about 10-seconds then return "no firmware found" and disconnect. I tried everything, (disconnect, reassign the USB etc) I could think of but the only way to test-cut was to shut it down and restart. That meant reloading the test-files etc.

It would be nice if LW did a complete restart with the connection after a "Disconnect" and a subsequent "Connect." Once the entire LW-program was restarted it was happy with everything again.

cprezzi commented 5 years ago

LW is checking the firmware version by reading the welcome string that is comming from grbl after each connect. If the welcome string "Grbl 1.1f ['$' for help]" (1.1f or higher) is not comming or different, then the connection is shut down because the firmware doesn't seem to be compatible with LW.

Is gebl-Mega sending a different welcome message?

There is also an option to send a reset command after connect to force grbl to send the welcome string. To activate that, you need to create a textfile called ".env" (nothing in front of the dot!) with the content "RESET_ON_CONNECT=1".

FlailAway commented 5 years ago

Is gebl-Mega sending a different welcome message?

Yes "grbl 1.1g" but not unless I shut it down first. When I connect right after the new upload I get "Connected" --delay-- "... disconnected" no grbl message.

If I shut it down and start again it gets that 1.1g message and all is OK. It seems like it is not getting a full start of grbl unless I shut it down.

cprezzi commented 5 years ago

That's why I wrote the option of RESET_ON_CONNECT. This makes sure that the Arduino is reset on each connect.

cprezzi commented 5 years ago

But you should manually reset your arduino anyways after flashing the firmware.