From bf57eb2447f6639970549e75fd7f1568887cdc64 Mon Sep 17 00:00:00 2001
From: Sebastianv650 <sebastian_v650@kabelmail.de>
Date: Tue, 21 Mar 2017 18:05:44 +0100
Subject: [PATCH] Protect Babystepping against other ISRs
Especialy against stepper ISR.
This is even more important when a minimum pulse width is set,
increasing the runtime of a babystep.
---
Marlin/stepper.cpp | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Marlin/stepper.cpp b/Marlin/stepper.cpp
index 299cedb8c6..9c69f38118 100644
--- a/Marlin/stepper.cpp
+++ b/Marlin/stepper.cpp
@@ -1250,6 +1250,7 @@ void Stepper::report_positions() {
// MUST ONLY BE CALLED BY AN ISR,
// No other ISR should ever interrupt this!
void Stepper::babystep(const AxisEnum axis, const bool direction) {
+ cli();
static uint8_t old_pin;
#if STEP_PULSE_CYCLES > CYCLES_EATEN_BY_BABYSTEP
static uint32_t pulse_start;
@@ -1336,6 +1337,7 @@ void Stepper::report_positions() {
default: break;
}
+ sei();
}
#endif //BABYSTEPPING