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NPHUO
Visitor II
August 23, 2018
Question

why does IWDG not freeze in standby mode although IWDG_STOP bit is set to frozen in the fist time?

  • August 23, 2018
  • 0 replies
  • 520 views

I am using NUCLEO L476RG board to test IWDG is frozen in Standby mode. I did following steps in below

  1. set IWDG_STDBY bit in FLASH_OPTR to zero
  2. Initialize Iwdg will reset in 5s
  3. Start Standby mode by HAL library

the board was reseted​ in 5s, but it was not reseted when i retried in the second or after.

please show me how to frozen IWDG without reset in the fist time?

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