bsod: Encode fault in boot magic

kbeckmann · Jan 8, 2021 · 9359d8b · 9359d8b
1 parent c34d0e2
commit 9359d8b
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diff --git a/Core/Inc/main.h b/Core/Inc/main.h
@@ -141,6 +141,7 @@ void wdog_refresh(void);
 #define BOOT_MAGIC_STANDBY  0xfedebeda
 #define BOOT_MAGIC_RESET    0x1fa1afe1
 #define BOOT_MAGIC_WATCHDOG 0xd066cafe
+#define BOOT_MAGIC_BSOD     0xbad00000
 
 /* USER CODE END Private defines */
 

diff --git a/Core/Src/main.c b/Core/Src/main.c
@@ -162,6 +162,9 @@ __attribute__((optimize("-O0"))) void BSOD(BSOD_t fault, void *pc, void *lr)
     wdog_refresh();
   }
 
+  // Encode the fault type in the boot magic
+  boot_magic = BOOT_MAGIC_BSOD | (fault & 0xffff);
+
   HAL_NVIC_SystemReset();
 
   // Does not return