How to judge MCU reset? Check one pin or register of MCU to see if ECU reset

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cross mob
User18309
Level 1
Level 1
Requirement :I need to count the number of ECU resets under abnormal conditions.
Solution:Total number of resets - number of normal resets = number of abnormal resets
block:1:How to count the total reset times.
2:How small task cycle should the total reset count be placed?

Normal reset: reset MCU by command
Abnormal reset: under the normal operation of MCU, reset occurs suddenly
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