Stm32 bootloader Update firmware reboot IWDG independent watchdog

Source: Internet
Author: User

Symptom: The PCB board will restart directly from firmware soft reset to bootloader update

Problem Reason: IWDG (independent watchdog) is turned on in the firmware, no dog is fed during firmware update, causing

The count is counted to 0 and the watchdog resets reset.

Problem solving:

1. Since the independent watchdog cannot be turned off once it is turned on, either feed the dog in the bootloader or do not start.

2. Switch to the window watchdog and turn the watchdog off before soft reset.


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