The NXP LPC11xxLV parts are Cortex-M0 based MCUs with Low-Voltage Input (1.65 V to 1.95 V). This low voltage input means that special debug support is required within the tools and debug probe. The IO pads of these parts are NOT 3.3V tolerant and it is therefore fairly easy to damage the parts by applying over voltage to pads.
For more information on the LPC11xxLV, please visit LPC1100 32-bit MCUs|ARM Cortex-M0+/M0 Cores|NXP
Although you can develop code for LPC11xxLV parts using any version of LPCXpresso 6, debugging of LPC11xxLV parts can only be carried out using Red Probe+ or LPC-Link2.
If you try to debug using LPC-Link, you will see an error similar to the one below telling you that no suitable debug adapter can be found:
Debug probe not supported with this target
LPC-Link (HID) does not support NXP LPC1101LV (cortex-m0)
This is because LPC-Link does not support the necessary low voltage operation.
Make sure that you ALWAYS disconnect the USB cable from the debug probe before physically connecting it to an LPC11xxLV board. This is particularly important if you have previously connected your debug probe to another board previosuly (and on Red Probe+ if the "Target" LED is illuminated). Failure to do this risks destroying your LPC11xxLV part as the probe may apply an incorrect voltage.