Custom board (using nrf52832) stops working

[TAEYOUNG]

Hi,

Our custom board stops working sometimes.

At this time, when the power is rebooted, it operates normally.

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Custom board maker is not addressing this issue.

In this case, I'm writing to ask for advice on how to find the cause and fix it.

Thanks for reading.

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• Number of production: 4,000
• Error device: 20 or more
• Cusmtom board chip : nrf52832
• Cumstom board functions : ble uart, usb uart(TTL), gpio control
• Reasons to know how it stopped : not working ble uart and usb uart

[Vidar Berg]

Hi,

It sounds like your program is becoming stuck. Is it possible to attach a debugger to the board to see exactly where it hangs?

Best regards,

Vidar

[TAEYOUNG]

Thanks for answer.

Now it is not possible to attach a debugger.
But I will try that.

And are you saying that once it stops without a debugger, there's no way to determine why it's stoped?

[Vidar Berg]

Yes, it's not possible to confirm where it hangs without a debugger. When the debugger is connected, you can run "nrfjprog --readregs" to read out the Program counter (PC) and interrupt status register.

[TAEYOUNG]

Thanks for answer.

I understand that.