1 files changed, 64 insertions, 0 deletions
diff --git a/Marlin/src/gcode/control/M350_M351.cpp b/Marlin/src/gcode/control/M350_M351.cpp
new file mode 100644
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--- /dev/null
+++ b/Marlin/src/gcode/control/M350_M351.cpp
@@ -0,0 +1,64 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../../inc/MarlinConfig.h"
+
+#if HAS_MICROSTEPS
+
+#include "../gcode.h"
+#include "../../module/stepper.h"
+
+/**
+ * M350: Set axis microstepping modes. S sets mode for all drivers.
+ *
+ * Warning: Steps-per-unit remains unchanged.
+ */
+void GcodeSuite::M350() {
+  if (parser.seen('S')) LOOP_LE_N(i, 4) stepper.microstep_mode(i, parser.value_byte());
+  LOOP_XYZE(i) if (parser.seen(axis_codes[i])) stepper.microstep_mode(i, parser.value_byte());
+  if (parser.seen('B')) stepper.microstep_mode(4, parser.value_byte());
+  stepper.microstep_readings();
+}
+
+/**
+ * M351: Toggle MS1 MS2 pins directly with axis codes X Y Z E B
+ *       S# determines MS1, MS2 or MS3, X# sets the pin high/low.
+ */
+void GcodeSuite::M351() {
+  if (parser.seenval('S')) switch (parser.value_byte()) {
+    case 1:
+      LOOP_XYZE(i) if (parser.seenval(axis_codes[i])) stepper.microstep_ms(i, parser.value_byte(), -1, -1);
+      if (parser.seenval('B')) stepper.microstep_ms(4, parser.value_byte(), -1, -1);
+      break;
+    case 2:
+      LOOP_XYZE(i) if (parser.seenval(axis_codes[i])) stepper.microstep_ms(i, -1, parser.value_byte(), -1);
+      if (parser.seenval('B')) stepper.microstep_ms(4, -1, parser.value_byte(), -1);
+      break;
+    case 3:
+      LOOP_XYZE(i) if (parser.seenval(axis_codes[i])) stepper.microstep_ms(i, -1, -1, parser.value_byte());
+      if (parser.seenval('B')) stepper.microstep_ms(4, -1, -1, parser.value_byte());
+      break;
+  }
+  stepper.microstep_readings();
+}
+
+#endif // HAS_MICROSTEPS