Hello,
I tried to flush our product using NRF5340 DK without success.
I connected the DK to external 1.8V supply required by the product. But that didn't work.
Please help me to get how to connect the DK to the NRF52840 USB Dongle to flush the dongle firmware using DK, instead of USB.
My goal is to understand minimal connection requirements so I can flush my board instead. I suppose I need to connect the following pins
1. RESET -- where to connect RESET on the USB Dongle? Or press the reset is enough and no need to connect the RESET pin?
2. SWDIO
3. SWCLK
How does DK understand that external board is powered?
Do I need to connect other pins to help the DK's JLINK switch from internal nRF5340 MCU to the Dongle? Maybe VIO_REF?
I tried with and without 3V VIO_REF, while the dongle is connected to USB. It doesn't work. Please help me :)
Kind regards,
Ilia
