G92 positional resets having pausing effect?

[paukstelis]

I have a few scripts that kick out a variety of gcode for lathe and lathe-like operations.
It is often useful in those cases to reset the rotational axis position in the command list with a G92 A0.
In the last few firmware versions (unfortunately I can't point to exactly when things changed) I have noticed that these G92 position setting lead to distinct pauses when executed. Are there other settings that I might look to that might also be impacting this?
Thanks.

[terjeio]

Are there other settings that I might look to that might also be impacting this?

No, but all setting changes will casue a pause when saved - how long depends on which type of non-volatile storage (NVS) is in use.
Best is to use a board that has I2C EEPROM/FRAM for NVS as saving to flash can take a long time, this since the the block that is used has to be erased first. And some MCUs has a block size of 128 Kb...
EEPROM has to be erased as well but has a small page size (less than 100 bytes).

Another potential issue to be aware of is lifetime, flash and EEPROM will eventually wear out - FRAM in practice never.

FYI the $I output contains a line with the type of NVS that is used.

[paukstelis]

Any idea why a G92 would lead to a pause? It is pretty dramatic pause, basically a full second. Very simple in the gcode department

G1 Z-0.6000 F300 G93 G90 G1 X-3.0000 A360.0000 F6 G92 A0 G1 Z-0.6000 F300 G93 G90 G1 X-6.0000 A360.0000 F6 G92 A0 G1 Z-0.6000 F300 G93 G90 G1 X-9.0000 A360.0000 F6 G92 A0 

[terjeio]

Oops, I forgot about the $10 flag for Buffer sync on on WCO change. You have to disable that.

$$=10 0 - Position in machine coordinate (1) 1 - Buffer state (2) 2 - Line numbers (4) 3 - Feed & speed (8) 4 - Pin state (16) 5 - Work coordinate offset (32) 6 - Overrides (64) 7 - Probe coordinates (128) 8 - Buffer sync on WCO change (256) 9 - Parser state (512) 10 - Alarm substatus (1024) 11 - Run substatus (2048) 12 - Enable when homing (4096) 13 - Distance-to-go (8192) 

[paukstelis]

This was it. Thanks so much!