From 63235625aba1e4bc7b68e6152cdb9170d6cf9d62 Mon Sep 17 00:00:00 2001
From: Ondrej Tuma <mcbig@zeropage.cz>
Date: Mon, 20 May 2019 14:52:48 +0200
Subject: [PATCH] pause printer by flag

---
 Firmware/Marlin_main.cpp | 9 ++++++++-
 Firmware/temperature.cpp | 5 ++++-
 Firmware/temperature.h   | 2 ++
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index 2cd0abe8c..a1740b240 100644
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -156,7 +156,6 @@
 //=============================imported variables============================
 //===========================================================================
 
-
 //===========================================================================
 //=============================public variables=============================
 //===========================================================================
@@ -3389,6 +3388,14 @@ extern uint8_t st_backlash_y;
 //!@n M999 - Restart after being stopped by error
 void process_commands()
 {
+  #ifdef FANCHECK
+  if (fan_check_error){
+    fan_check_error = false;
+    lcd_pause_print();
+    return;
+  }
+  #endif
+
 	if (!buflen) return; //empty command
   #ifdef FILAMENT_RUNOUT_SUPPORT
     SET_INPUT(FR_SENS);
diff --git a/Firmware/temperature.cpp b/Firmware/temperature.cpp
index f64c5d9de..668b857fd 100755
--- a/Firmware/temperature.cpp
+++ b/Firmware/temperature.cpp
@@ -94,6 +94,9 @@ float current_temperature_bed = 0.0;
   unsigned char fanSpeedSoftPwm;
 #endif
 
+#ifdef FANCHECK
+  volatile bool fan_check_error = false;
+#endif
 
 unsigned char soft_pwm_bed;
 
@@ -527,7 +530,7 @@ void fanSpeedError(unsigned char _fan) {
 			lcd_print_stop();
 		}
 		else {
-			lcd_pause_print();
+			fan_check_error = true;
 		}
 	}
 	else {
diff --git a/Firmware/temperature.h b/Firmware/temperature.h
index ba9632cf6..31ab8d9f5 100644
--- a/Firmware/temperature.h
+++ b/Firmware/temperature.h
@@ -238,6 +238,8 @@ void checkExtruderAutoFans();
 
 #if (defined(FANCHECK) && defined(TACH_0) && (TACH_0 > -1))
 
+extern volatile bool fan_check_error;
+
 void countFanSpeed();
 void checkFanSpeed();
 void fanSpeedError(unsigned char _fan);