STM32F030C8T6TR Reset continuesly time interval?

I place oscilloscope probe at reset pin of MCU it get low reset continuously time period

I observed RCC- CSR resistor which gives LSIRDY=1 AND IWDGRSTF=1 both are set

How can I make them of and solve this reset problem?

Below attached images of MCU working fine & other get reset continuously resistor value.

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TDKBest answer

IWDGRSTF indicates the chip was reset by the IWDG. To avoid that, disable the IWDG in option bytes and don't start it in your program.

Be sure to clear the RCC_CSR flags after you read them to ensure they're valid on next reset.

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TDKBest answer

IWDGRSTF indicates the chip was reset by the IWDG. To avoid that, disable the IWDG in option bytes and don't start it in your program.

Be sure to clear the RCC_CSR flags after you read them to ensure they're valid on next reset.

"If you feel a post has answered your question, please click ""Accept as Solution""."

Associate III

solved I reprogrammed my option byte MCU works normally.

THANKS.=)

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