conditional gcode - are these bugs?

A Former User

The M552 command in config.g is defered until the end of the file by design.

But I'm sure we've seen people enabling it explicitly in config.g. Maybe you have to reset it with M552 S-1 before M552 S1 or maybe thats been changed in a recent version.

zombiRon

@bearer any idea why it's deferred? Only thing I could think of is to allow the firmware recovery of the WiFi module with M997, but then this is just a simple ordering of commands in the file. I could understand that if the config was not guaranteed to be processed in any order but we have commands used in config.g which must be in a particular order already. Add to that if files were processed out of order; 3D printing wouldn't be possible.

I noticed in another post M552 commands are deferred since you mentioned it, but in them posts they were interlaced with G4 wait commands, so how does it know to defer them too? This would lead to inconsistent behaviour.

If it's by design then it must have a reason; hardware implementation, some blocking I/O or a race condition?? I wonder if the WiFi module has direct access to the SDCard, this would make sense.

A Former User

dc42 would know, I can't say I recall any specific reason being given. (unless it boiled down to preventing M578 overriding the ssid setting on every boot and wearing out the flash)

on the other hand, I know I've bypassed the deferral in an older version of RRF, much in the same manor as you're trying, just without M98 and mulitiple files.

dc42

@zombiRon said in conditional gcode - are these bugs?:

Is there any other unique identifier I can query during config.g?

25/07/2020, 09:28:32 	echo boards[0].uniqueId
2X88B-BD6P9-F65J0-401F8-M603Z-ZLB9F

zombiRon

@dc42 great, thank you. I never looked in the boards section, assumed it was for expansion / tool boards.

Now I can leave out all of the logic and just include a config if it exists, which means I can have a single SD image for both machines.

M98 P{"MACHINES/" ^ boards[0].uniqueId ^ ".g"}

dc42

@zombiRon said in conditional gcode - are these bugs?:

Should I be able to do this? if not can it be implemented please?
T{ state.previousTool } P0

This is now supported. It will be live in 3.2beta.

zombiRon

@dc42 Excellent! Thanks very much!

dc42

@zombiRon, I've just fixed the comparison of Mac addresses and IP addresses with strings too.

zombiRon

@dc42 you're on a roll today

dc42

I finally found some time to work on the minor bug list.