49 lines
1.3 KiB
Markdown
49 lines
1.3 KiB
Markdown
---
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tag: m0032
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title: Select and Start
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brief: Begin an SD print from a file.
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author: thinkyhead
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experimental: true
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requires: SDSUPPORT
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group: sdcard
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codes: [ M32 ]
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notes:
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- Requires [`SDSUPPORT`](/docs/configuration/configuration.html#sd-card)
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- This is a seldom-used beta feature that needs more testing and use-cases.
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parameters:
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-
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tag: P
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optional: true
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description: Sub-Program flag
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values:
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-
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tag: flag
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type: bool
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-
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tag: S
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optional: true
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description: Starting file offset
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values:
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-
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tag: filepos
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type: int
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examples:
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-
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pre: Select and start a file at offset 5022.
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code: M32 S5022 !/boats/sailboat.gco
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-
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pre: Select and start a file from within G-code.
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code: M32 P !/models/lgbust.gco#
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post: The `#` suffix is needed when using `P` to "stop buffer pre-reading" so no commands after [`M32`](/docs/gcode/M032.html) will go into the buffer until after it returns.
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---
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The [`M32`](/docs/gcode/M032.html) 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.
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For legacy reasons [`M32`](/docs/gcode/M032.html) uses '`!`' (and '`#`') to delimit the filepath parameter. The filepath must be the last parameter.
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