From eef29311500dd573177afea0c9b213176d8e497b Mon Sep 17 00:00:00 2001
From: rudihorn <rh@rudi-horn.de>
Date: Fri, 12 Jun 2020 02:46:25 +0100
Subject: [PATCH] Fix PTC calculation (#18265)
---
Marlin/src/feature/probe_temp_comp.cpp | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/Marlin/src/feature/probe_temp_comp.cpp b/Marlin/src/feature/probe_temp_comp.cpp
index c3459d2345..ad0acef04d 100644
--- a/Marlin/src/feature/probe_temp_comp.cpp
+++ b/Marlin/src/feature/probe_temp_comp.cpp
@@ -179,7 +179,7 @@ float ProbeTempComp::get_offset_for_temperature(const TempSensorID tsi, const fl
};
// Linear interpolation
- uint8_t idx = static_cast<uint8_t>(temp - start_temp / res_temp);
+ uint8_t idx = static_cast<uint8_t>((temp - start_temp) / res_temp);
// offset in um
float offset = 0.0f;
@@ -190,9 +190,9 @@ float ProbeTempComp::get_offset_for_temperature(const TempSensorID tsi, const fl
else if (idx > measurements - 2)
offset = static_cast<float>(data[measurements - 1]);
#else
- if (idx < 0)
+ if (idx < 0)
offset = linear_interp(temp, point(0), point(PTC_LINEAR_EXTRAPOLATION));
- else if (idx > measurements - 2)
+ else if (idx > measurements - 2)
offset = linear_interp(temp, point(measurements - PTC_LINEAR_EXTRAPOLATION - 1), point(measurements - 1));
#endif
else
--
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