From 53982efa14e2e9551fa54e0736269d32a24f26a8 Mon Sep 17 00:00:00 2001
From: "Ben V. Brown" <Ralim@Ralimtek.com>
Date: Sat, 11 Jan 2025 12:56:00 +1100
Subject: [PATCH] Use the ADC_MAX_READING value

---
 source/Core/Threads/PIDThread.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/Core/Threads/PIDThread.cpp b/source/Core/Threads/PIDThread.cpp
index c7b27118..3c27fc89 100644
--- a/source/Core/Threads/PIDThread.cpp
+++ b/source/Core/Threads/PIDThread.cpp
@@ -249,7 +249,7 @@ void detectThermalRunaway(const TemperatureType_t currentTipTempInC, const uint3
   static bool haveSeenDelta = false;
 
   // Check for readings being pegged at the top of the ADC while the heater is off
-  if (!thisCycleIsHeating && (getTipRawTemp(0) > (0x7FFF - 16))) {
+  if (!thisCycleIsHeating && (getTipRawTemp(0) > (ADC_MAX_READING - 8))) {
     heaterThermalRunaway = true;
   }