SEGGER J-Link Commander V7.64b (Compiled Apr 8 2022 15:31:33)
DLL version V7.64b, compiled Apr 8 2022 15:30:15
Connecting to J-Link via USB...O.K.
Firmware: J-Link ARM-OB STM32 compiled Aug 22 2012 19:52:04
Hardware version: V7.00
S/N: 20090928
License(s): RDI,FlashDL,FlashBP,JFlash,GDB
VTref=3.300V
Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: CORTEX-M4
Type '?' for selection dialog
Device>?
Please specify target interface:
J) JTAG (Default)
S) SWD
T) cJTAG
TIF>S
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>4000 kHz
Device "NRF52840_XXAA" selected.
Selected interface (SWD) is not supported by the connected probe.
J-Link>