nRF52840 (Holyiot-17120) cannot run code without debbuger

RE: nRF52840 (Holyiot-17120) cannot run code without debbuger

Mttrinh — Thu, 21 Nov 2019 16:01:12 GMT

This look similiar to this case. Have look at that post and see if it solves your problem.

stich86 — Mon, 18 Nov 2019 13:24:57 GMT

it's already disabled :(

Mttrinh — Mon, 18 Nov 2019 12:57:54 GMT

Could you also try disable RTT. Set NRF_LOG_BACKEND_RTT_ENABLED to 0. Does it help?

stich86 — Mon, 18 Nov 2019 11:03:35 GMT

yes, two

i've also tried to compile the app using SDK 15.3 but same issue, need to leave debugger attached to start the program :(

Mttrinh — Mon, 18 Nov 2019 10:57:56 GMT

Hi,

Do you have an external crystal attached to your board?