SBC + DSF-API with M291 S3

resam

I'm trying to write a macro with an Ok/Cancel Message box:

; ask for confirmation first
M291 P"Are you sure?" S3
; should only be executed if OK
M1234 ; custom g-code via DSF-API

However, I this is not working as intended. The custom g-code executed before I even can click anything on the message box - it's almost as M291 is acting in non-blocking mode.

Is this a bug in M291, or do I need to flush the SBC DSF g-code queue and somehow read the result from M291 first?

I tried the intercept_connection.flush(cde.channel) as used in the pydsfapi example, but this simply blocks. And DWC seems also stuck with reporting "Busy" state for the printer. Reloading the browser simply displays the message again...

resam

@chrishamm anything in the upcoming v3.3 that would fix this?
I reported this broken behaviour with 3.2.2.

chrishamm

@resam This is exactly the reason you need to perform a flush. See here for an example how custom codes may be implemented: https://github.com/Duet3D/DuetSoftwareFramework/blob/v3.3-dev/src/DuetPiManagementPlugin/Program.cs#L122