Sound bug

furynick

I noticed several time a unsollicited reboot when making long beeps.
Here is a part of my start G-code :
M80                      ; Turn on power
M107                     ; Turn off fan
M140 S90 F1              ; Start bed heating
G91                      ; Use relative coordinates
G1   Z1.5 F600            ; Move nozzle up
G90                      ; Absolute positioning
G28  X0 Y0               ; Home extruder
G1   X104 Y104 F2880     ; Center nozzle
G28  Z0                  ; Home Z
G1   X0 Y0 Z2            ; Move 3mm off the bed
M300 S2500 P1000         ; Beep
G21                      ; Set units to millimeters
M82                      ; Extruder in absolute mode
M190 S90                 ; Wait bed end heating
M300 S2500 P1000         ; Beep
; Wait for all used extruders to reach temperature
M109 T0 S245
M300 S2500 P1000         ; Beep

Since I disabled beeps I had no more reboot.
The problem occur more frequently when bed & extruder are already at target temp.

Same problem with 0.91 & 0.92 on ramps 1.4/mega 2560.

Repetier

That is not a software, but a hardware problem. The high frequency on beeper line causes the avr to trigger reset. Maybe crosstalk maybe just brown out. See log entry on restart what the reset reason is.

furynick

Ok, thanks, I disabled sound, I'll use external commands to play sound once I'll setup my raspberry with repetier server.