When I try to connect to nrf52840 using J-Link, the following error is detected.
What is the reason for this "Failed to power up DAP"?
- Connecting via USB to probe/ programmer device 0
- Device "NRF52840_XXAA" selected.
- Target interface speed: 10 kHz (Fixed)
- VTarget = 1.787V
- InitTarget() start
- InitTarget() end
- Found SW-DP with ID 0x2BA01477
- Failed to power up DAP
- InitTarget() start
- InitTarget() end
- Found SW-DP with ID 0x2BA01477
- Failed to power up DAP
- ERROR: Failed to connect.
Could not establish a connection to target.