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-rw-r--r--Bootloaders/DFU/BootloaderDFU.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/Bootloaders/DFU/BootloaderDFU.c b/Bootloaders/DFU/BootloaderDFU.c
index cebc0f433..c735fdaf8 100644
--- a/Bootloaders/DFU/BootloaderDFU.c
+++ b/Bootloaders/DFU/BootloaderDFU.c
@@ -139,8 +139,19 @@ void Application_Jump_Check(void)
if (!(MCUSR & (1 << EXTRF)) || (MagicBootKey == MAGIC_BOOT_KEY))
JumpToApplication = true;
+ /* Clear reset source */
MCUSR &= ~(1 << EXTRF);
}
+ else
+ {
+ /* If the reset source was the bootloader and the key is correct, clear it and jump to the application;
+ * this can happen in the HWBE fuse is set, and the HBE pin is low during the watchdog reset */
+ if ((MCUSR & (1 << WDRF)) && (MagicBootKey == MAGIC_BOOT_KEY))
+ JumpToApplication = true;
+
+ /* Clear reset source */
+ MCUSR &= ~(1 << WDRF);
+ }
#endif
/* Don't run the user application if the reset vector is blank (no app loaded) */