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Softdevice example doesn't start when powered by other source than MCU interface.

Francois5Co

Hi,

Recently I receive the "nRF52840-Preview-DK" and I download the "nRF5 SDK v14.0.0". I try some example with Keil and all of them works well when I use the MCU interface. But when I try to powered the board with other source than the MCU interface only examples that do not include softdevice works. Examples with softdevice seems to doesn't start. I have the same problem if I copy directly the hex file on the JLink storage manager.

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    OK. So at least nRF52840 is alive, that is good. Now what exactly is the difference between working and not working examples? How you flash it to the board (when you have SEGGER J-Link disconnected because you plug only USB cable directly to nRF52)? Which example HEX files work and how these with Soft Device misbehave? At least some debug trace from UART or RTT?

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    OK. So at least nRF52840 is alive, that is good. Now what exactly is the difference between working and not working examples? How you flash it to the board (when you have SEGGER J-Link disconnected because you plug only USB cable directly to nRF52)? Which example HEX files work and how these with Soft Device misbehave? At least some debug trace from UART or RTT?

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