A debug probe is used for both flashing and debugging the board. This board has an LPC-LINK2 Onboard Debug Probe. The default firmware present on this probe is the LPC-Link2 DAPLink Onboard Debug Probe.
Based on the host tool installed, please use the following instructions to setup your debug probe:
- LinkServer Debug Host Tools: Using CMSIS-DAP with LPC-Link2 Probe 
- pyOCD Debug Host Tools: Using CMSIS-DAP with LPC-Link2 Probe 
Using CMSIS-DAP with LPC-Link2 Probe
- Follow the instructions provided at LPC-LINK2 CMSIS DAP Onboard Debug Probe to reprogram the default debug probe firmware on this board. 
- Ensure the SWD isolation jumpers are populated 
Using J-Link with LPC-Link2 Probe
There are two options: the onboard debug circuit can be updated with Segger J-Link firmware, or a J-Link External Debug Probe can be attached to the EVK.
To update the onboard debug circuit, please do the following:
- Switch the power source for the EVK to a different source than the debug USB, as the J-Link firmware does not power the EVK via the debug USB. 
- Follow the instructions provided at LPC-Link2 J-Link Onboard Debug Probe to reprogram the default debug probe firmware on this board. 
- Ensure the SWD isolation jumpers are populated. 
To attach an external J-Link probe, ensure the SWD isolation jumpers are removed, then connect the probe to the external JTAG/SWD header