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M32 - Select and Start

sdcard Begin an SD print from a file. SDSUPPORT

Description

The M32 command exists to allow G-code to load other G-code files and run them as sub-programs. This can be useful to change the start / end G-code for a batch of files without having to edit them all.

For legacy reasons M32 uses ‘!’ (and ‘#’) to delimit the filepath parameter. The filepath must be the last parameter.

Notes

Requires SDSUPPORT

This is a seldom-used beta feature that needs more testing and use-cases.

Usage

M32 [P<0|1>] [S<filepos>]

Parameters

[P<0|1>]

Sub-program type.

  • P0:

    (Default) Normal file start. The current file position is not saved or restored.

  • P1:

    Sub-program mode. The current file position is saved and restored after the given file completes.
[S<filepos>]

Starting file offset

    Examples

    Select and start a file at offset 5022.

    M32 S5022 !/boats/sailboat.gco

    Select and start a file from within G-code.

    M32 P !/models/lgbust.gco#

    The # suffix is needed when using P to “stop buffer pre-reading” so no commands after M32 will go into the buffer until after it returns.