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STM32H755XI gets so hot

TDP_0000
Visitor

‎2024-10-27 05:30 PM - last edited on ‎2024-10-28 01:40 AM by

MPU_schematic.jpg

I checked with the Uploaded File schematic board.

I'm using STM32CubeProgrammer.

Connect from PC via UART.

I confirmed that the UART is connected with STM32CubeProgrammer.

​Software has not been written yet.

In that state, the MCU became so hot that I couldn't touch it.

Could you please tell me the possible reasons?

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3 REPLIES 3
PGump.1
Senior III

‎2024-10-27 06:10 PM

Hi,

  • Your MCU is broken. Possibly a Latch-up condition.
  • GPIO(s) that are tied to GND are configured as High Outputs.

I hope that helps

Kind regards
Pedro

AI = Artificial Intelligence, NI = No Intelligence, RI = Real Intelligence.
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TDP_0000
Visitor

‎2024-10-27 11:27 PM

Hello,Pedro


When I set Boot 0(E8) to Lo, it no longer heats up.

 

If I turn on the power before writing software, are there any GPIOs that are output?

 

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TDP_0000
Visitor

‎2024-10-27 11:29 PM

Are there any signals such as GPIO that are turned on when Boot 0 is Hi?

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