Re: nrf52840_pca10059 startup
Hi,
I am flashing the board using an Atmel-ICE debugger (using pyOCD 0.11.2) connected to a 10-pin debug connector soldered to the P1 footprint on the bottom of the board.
I am using the same configuration for several NRF52832 boards without issues.
Best regards,
Brix
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Henrik Brix Andersen
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I am flashing the board using an Atmel-ICE debugger (using pyOCD 0.11.2) connected to a 10-pin debug connector soldered to the P1 footprint on the bottom of the board.
I am using the same configuration for several NRF52832 boards without issues.
Best regards,
Brix
--
Henrik Brix Andersen
On 26 Aug 2018, at 19.01, Cufi, Carles <Carles.Cufi@...> wrote:
Hi there,
Can you tell us how you're flashing the board? Another Nordic Devkit, or a separate debug IC?
Also copying Emanuele who's doing most of the work on this board.
Regards,
Carles
On 26/08/2018, 18:07, "devel@... on behalf of Henrik Brix Andersen" <devel@... on behalf of henrik@...> wrote:
Hi,
I have just acquired an NRF52840 Dongle (nrf52840_pca10059) and I am facing some difficulties with board startup.
When I flash a zephyr binary to the board (e.g. samples/basic/blinky) the board starts up fine and starts the application.
But when I disconnect the board from USB power and reconnect it, the application no longer starts (and the internal DC-DC converter does not seem to start-up either).
If I run no-op pyOCD command (e.g. pyocd-flashtool -t nrf52840) the application springs to life (e.g. for blinky, the LED starts to blink).
I am not using mcuboot or any other bootloader; just the bare-bone sample application.
What am I missing here?
Best regards,
Brix
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Henrik Brix Andersen