From e55e65d1e430355a971df027fc3245f84ecc2c77 Mon Sep 17 00:00:00 2001
From: CONSULitAS <info@consulitas.de>
Date: Mon, 18 May 2015 22:26:17 +0200
Subject: [PATCH] =?UTF-8?q?planner.cpp:=20Add=20FAN=5FMIN=5FPWM=20for=20sl?=
=?UTF-8?q?ow=20fan=20stopping=20issue=20=E2=80=A6?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
@CONSULitAS
planner.cpp: Add FAN_MIN_PWM for slow fan stopping issue (V2.1 with
macro and linear scaling)
@thinkyhead thanks for idea on linear scaling
---
Marlin/planner.cpp | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/Marlin/planner.cpp b/Marlin/planner.cpp
index 0a45ff38d9..4ecd459999 100644
--- a/Marlin/planner.cpp
+++ b/Marlin/planner.cpp
@@ -440,12 +440,17 @@ void check_axes_activity() {
} else {
fan_kick_end = 0;
}
- #endif//FAN_KICKSTART_TIME
- #ifdef FAN_SOFT_PWM
- fanSpeedSoftPwm = tail_fan_speed;
+ #endif //FAN_KICKSTART_TIME
+ #ifdef FAN_MIN_PWM
+ #define CALC_FAN_SPEED (tail_fan_speed ? ( FAN_MIN_PWM + (tail_fan_speed * (255 - FAN_MIN_PWM)) / 255 ) : 0)
#else
- analogWrite(FAN_PIN, tail_fan_speed);
- #endif //!FAN_SOFT_PWM
+ #define CALC_FAN_SPEED tail_fan_speed
+ #endif // FAN_MIN_PWM
+ #ifdef FAN_SOFT_PWM
+ fanSpeedSoftPwm = CALC_FAN_SPEED;
+ #else
+ analogWrite(FAN_PIN, CALC_FAN_SPEED);
+ #endif // FAN_SOFT_PWM
#endif // HAS_FAN
#ifdef AUTOTEMP