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debugging BLE uart causes reset when breakpoint set in SDK

I am using Keil and nrf52 dev kit to write some UART over BLE code if I set a break-point in nus_data_handler() it cause a reset to run soon after stepping though some code and the BLE radio starts advertising even though I am stepping through code.

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haakonsh over 5 years ago +2

The SoftDevice will hardfault if you halt the CPU, the hardfault handler will reset the MCU. I suggest you try Monitor Mode Debugging: https://github.com/NordicPlayground/j-link-monitoring-mode-debugging…
haakonsh over 5 years ago in reply to Craig +1

Yes, but: awneil said: Note that you require at least a J-Link Plus for Monitor Mode Debug: https://www.segger.com/products/debug-probes/j-link/technology/monitor-mode-debugging/ - see the FAQs …

0 Craig over 5 years ago in reply to awneil

OK I am using the nrf52-DK right now will it work on that??? I am making a custom board but wont have for a few weeks
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0 haakonsh over 5 years ago in reply to Craig

Yes, but:

awneil said:

Note that you require at least a J-Link Plus for Monitor Mode Debug:

https://www.segger.com/products/debug-probes/j-link/technology/monitor-mode-debugging/ - see the FAQs

(but the on-board J-Link on the nRF52 DKs gives you an evaluation licence for it)
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