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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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    What do you mean by "power the board with other source then MCU"? You always power the board just with Volts not MCUs;) You can use 5V USB on the Dev Kit or attach different 5V source through the PIN on the header, or you can power it directly through 3V3 or you can use battery holder on the Dev Kit...

    If you have problems with flashing the target then use nRFgo Studio, nrfjprog (from NRFTOOLS package) or similar tool which has some logs in case of error. That will tell us more.

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  • 0

    What do you mean by "power the board with other source then MCU"? You always power the board just with Volts not MCUs;) You can use 5V USB on the Dev Kit or attach different 5V source through the PIN on the header, or you can power it directly through 3V3 or you can use battery holder on the Dev Kit...

    If you have problems with flashing the target then use nRFgo Studio, nrfjprog (from NRFTOOLS package) or similar tool which has some logs in case of error. That will tell us more.

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