From 0aa791d62bfb5059af2c8733b86f571e49dc0cee Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Sat, 12 May 2018 02:27:40 -0500
Subject: [PATCH] Fix Switching Extruder with Linear Advance
---
Marlin/stepper.cpp | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/Marlin/stepper.cpp b/Marlin/stepper.cpp
index a532db8193..c5a0c7f183 100644
--- a/Marlin/stepper.cpp
+++ b/Marlin/stepper.cpp
@@ -1634,6 +1634,17 @@ void Stepper::isr() {
#if ENABLED(DUAL_X_CARRIAGE) || ENABLED(DUAL_NOZZLE_DUPLICATION_MODE)
#define START_E_PULSE(INDEX) do{ if (e_steps) E_STEP_WRITE(!INVERT_E_STEP_PIN); }while(0)
#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)
+ #elif ENABLED(SWITCHING_EXTRUDER)
+ #define START_E_PULSE(INDEX) do{ if (e_steps) { switch (INDEX) { \
+ case 0: case 1: E0_DIR_WRITE(!INVERT_E_STEP_PIN); break; \
+ case 2: case 3: E1_DIR_WRITE(!INVERT_E_STEP_PIN); break; \
+ case 4: E2_DIR_WRITE(!INVERT_E_STEP_PIN); \
+ } } }while(0)
+ #define STOP_E_PULSE(INDEX) do{ if (e_steps) { switch (INDEX) { \
+ case 0: case 1: E0_DIR_WRITE(!INVERT_E_STEP_PIN); break; \
+ case 2: case 3: E1_DIR_WRITE(!INVERT_E_STEP_PIN); break; \
+ case 4: E2_DIR_WRITE(!INVERT_E_STEP_PIN); \
+ } } }while(0)
#else
#define START_E_PULSE(INDEX) do{ if (e_steps) E## INDEX ##_STEP_WRITE(!INVERT_E_STEP_PIN); }while(0)
#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)