From 6136959a6a0a5cb2b5fb303822ac0fc4867433a7 Mon Sep 17 00:00:00 2001
From: Giuliano Zaro <3684609+GMagician@users.noreply.github.com>
Date: Sat, 27 Feb 2021 20:24:36 +0100
Subject: [PATCH] [SAMD51] Postmortem Debugging not implemented (#21211)

---
 Marlin/src/HAL/SAMD51/inc/SanityCheck.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Marlin/src/HAL/SAMD51/inc/SanityCheck.h b/Marlin/src/HAL/SAMD51/inc/SanityCheck.h
index 5d610acac8..2a4bde98e6 100644
--- a/Marlin/src/HAL/SAMD51/inc/SanityCheck.h
+++ b/Marlin/src/HAL/SAMD51/inc/SanityCheck.h
@@ -50,3 +50,7 @@
 #if ENABLED(FAST_PWM_FAN) || SPINDLE_LASER_FREQUENCY
   #error "Features requiring Hardware PWM (FAST_PWM_FAN, SPINDLE_LASER_FREQUENCY) are not yet supported on SAMD51."
 #endif
+
+#if ENABLED(POSTMORTEM_DEBUGGING)
+  #error "POSTMORTEM_DEBUGGING is not yet supported on AGCM4."
+#endif