Continuous Reboot Issue with STM32G070CBT6

[Aditech]

Hello,

We are currently using the STM32G070CBT6 microcontroller in one of our data logger devices, which operates on a three-phase power supply and is used in a transformer application. In our design, the microcontroller triggers a relay, and the relay controls a contactor.

We are facing an issue where the STM32G070CBT6 is continuously rebooting during normal operation, which is affecting the overall functionality and reliability of the product.

For your reference, we have attached the reset circuit schematic used in our design. We kindly request you to review the schematic and help us identify the possible causes of the continuous reboot behavior.

Please let us know if any additional information, measurements, or test data are required from our side to assist in the analysis.

Thank you for your support.

[mƎALLEm]

Hello,

You could be facing EMI or EMC issues. But you forgot to attach the schematics.

Better to attach the complete schematics instead of the reset part.

[TDK]

Read the RCC_CSR register to understand why the chip is resetting. Possibly a power issue. Ensure 0.1 uF cap is on NRST line.