✨ M919 – TMC Chopper Timing

MarlinFirmware/Marlin#23333

1 files changed, 72 insertions, 0 deletions

diff --git a/_gcode/M919.md b/_gcode/M919.md
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+---
+tag: m0919
+title: TMC Chopper Timing
+brief: Set Chopper Timing values
+author: thinkyhead
+
+requires: TMC2208|TMC2209|TMC2660
+since: 2.0.9.4
+group: trinamic
+
+codes: [ M919 ]
+
+notes: Requires one or more TMC stepper drivers.
+
+parameters:
+  -
+    tag: O
+    optional: true
+    description: Time-Off value (1..15). If omitted, the default from `CHOPPER_TIMING`.
+    values:
+      -
+        type: int
+  -
+    tag: P
+    optional: true
+    description: Hysteresis End value (-3..12). If omitted, the default from `CHOPPER_TIMING`.
+    values:
+      -
+        type: int
+  -
+    tag: S
+    optional: true
+    description: Hysteresis Start value (1..8). If omitted, the default from `CHOPPER_TIMING`.
+    values:
+      -
+        type: int
+  -
+    tag: I
+    optional: true
+    description: Index for multiple steppers. (i.e., `I1` for X2, Y2, Z2; `I2` for Z3; `I3` for Z4).
+    values:
+      -
+        unit: index
+        type: int
+  -
+    tag: T
+    optional: true
+    description: Index (tool) number for the E axis. If not specified, all extruders.
+    values:
+      -
+        unit: index
+        type: int
+  -
+    tag: Z
+    optional: true
+    description: Current for the Z stepper
+    values:
+      -
+        unit: mA
+        type: int
+
+examples:
+  -
+    pre: Set XYZE Chopper Timing suitable for 12V steppers
+    code: M919 XYZE O3 P-1 S1
+  -
+    pre: Set X2 Chopper Timing only
+    code: M919 X I1 O3 P-1 S1
+
+---
+
+Set the current for a stepper motor in milliamps units.