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@@ -1659,6 +1659,17 @@ void Stepper::isr() {
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1659
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1659
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#if ENABLED(DUAL_X_CARRIAGE) || ENABLED(DUAL_NOZZLE_DUPLICATION_MODE)
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1660
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1660
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#define START_E_PULSE(INDEX) do{ if (e_steps) E_STEP_WRITE(!INVERT_E_STEP_PIN); }while(0)
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1661
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1661
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#define STOP_E_PULSE(INDEX) do{ if (e_steps) { E_STEP_WRITE(INVERT_E_STEP_PIN); e_steps < 0 ? ++e_steps : --e_steps; } }while(0)
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1662
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+ #elif ENABLED(SWITCHING_EXTRUDER)
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1663
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+ #define START_E_PULSE(INDEX) do{ if (e_steps) { switch (INDEX) { \
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1664
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+ case 0: case 1: E0_DIR_WRITE(!INVERT_E_STEP_PIN); break; \
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1665
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+ case 2: case 3: E1_DIR_WRITE(!INVERT_E_STEP_PIN); break; \
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1666
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+ case 4: E2_DIR_WRITE(!INVERT_E_STEP_PIN); \
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1667
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+ } } }while(0)
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1668
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+ #define STOP_E_PULSE(INDEX) do{ if (e_steps) { switch (INDEX) { \
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1669
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+ case 0: case 1: E0_DIR_WRITE(!INVERT_E_STEP_PIN); break; \
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1670
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+ case 2: case 3: E1_DIR_WRITE(!INVERT_E_STEP_PIN); break; \
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1671
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+ case 4: E2_DIR_WRITE(!INVERT_E_STEP_PIN); \
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1672
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+ } } }while(0)
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1662
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1673
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#else
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1663
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1674
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#define START_E_PULSE(INDEX) do{ if (e_steps) E## INDEX ##_STEP_WRITE(!INVERT_E_STEP_PIN); }while(0)
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1664
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1675
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#define STOP_E_PULSE(INDEX) do { if (e_steps) { e_steps < 0 ? ++e_steps : --e_steps; E## INDEX ##_STEP_WRITE(INVERT_E_STEP_PIN); } }while(0)
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