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STM32F746 Freeze And Debugger Lost Connection

SCAN.1
Associate II

Hello everyone,

I have a custom board with STM32F746. I'm using STM32CubeIDE for this project.

Board(s) working as expected. But after a while it stops working.

At this point debugger connection also lost. I can not trace anything.

Also ST-Link Utility can't connect to device via Hot-Plug.

It needs to hardware reset for working again.

Is anyone faced something like this?

What i'm missing about debugging?

I'm using SDMMC, Ethernet, FMC, SPI and timer and external interrupts.

Thanks.

10 REPLIES 10
SCAN.1
Associate II

I'm not using low power modes. Thanks.