From 5c87762f9e5490f79275d5477d1a9b438aa4a669 Mon Sep 17 00:00:00 2001
From: Victor Oliveira <rhapsodyv@gmail.com>
Date: Wed, 30 Sep 2020 22:14:19 -0300
Subject: [PATCH] Fix Buzzer (pin) init for uninitialized FastIO (#19559)
---
Marlin/src/MarlinCore.cpp | 5 +++++
Marlin/src/libs/buzzer.h | 4 ++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/Marlin/src/MarlinCore.cpp b/Marlin/src/MarlinCore.cpp
index 8a425510c0..672858d05a 100644
--- a/Marlin/src/MarlinCore.cpp
+++ b/Marlin/src/MarlinCore.cpp
@@ -1048,6 +1048,11 @@ void setup() {
SERIAL_ECHO_MSG("Compiled: " __DATE__);
SERIAL_ECHO_MSG(STR_FREE_MEMORY, freeMemory(), STR_PLANNER_BUFFER_BYTES, (int)sizeof(block_t) * (BLOCK_BUFFER_SIZE));
+ // Init buzzer pin(s)
+ #if USE_BEEPER
+ SETUP_RUN(buzzer.init());
+ #endif
+
// Set up LEDs early
#if HAS_COLOR_LEDS
SETUP_RUN(leds.setup());
diff --git a/Marlin/src/libs/buzzer.h b/Marlin/src/libs/buzzer.h
index 022d94deaf..e901660c87 100644
--- a/Marlin/src/libs/buzzer.h
+++ b/Marlin/src/libs/buzzer.h
@@ -84,9 +84,9 @@
public:
/**
- * @brief Class constructor
+ * @brief Init Buzzer
*/
- Buzzer() {
+ static inline void init() {
SET_OUTPUT(BEEPER_PIN);
reset();
}