Nu-Link supports programming and debugging for the NuMicro® Family of microcontrollers. Depending on the required features, there are six models to choose from: the standalone Nu-Link, Nu-Link-Pro, Nu-Link2-Pro, and Nu-Link3-Pro, as well as the Nu-Link-Me and Nu-Link2-Me which come integrated with NuMaker series.
All Nu-Link debugger/programmer support :
• Embedded SRAM and Flash read/write
• Direct register control in real-time
• Hardware/software breakpoints insert
• Step-run program under debug mode
• Semihost function under debug mode　

In addition, Nu-Link3-Pro, Nu-Link2-Pro, Nu-Link, Nu-Link-Me and Nu-Link2-Me support the Virtual COM (VCOM) port function.

	Nu-Link3-Pro	Nu-Link2-Pro	Nu-Link-Pro	Nu-Link	Nu-Link2-Me	Nu-Link-Me	NSP-1-WTR
Supported Product Lines	Microcontrollers, Audio SoCs Family, Audio N57x Series	Microcontrollers, Audio SoCs Family, Audio N57x Series	Microcontrollers, Audio SoCs Family, Audio N57x Series	Microcontrollers, Audio SoCs Family, Audio N57x Series	Microcontrollers, Audio SoCs Family, Audio N57x Series	Microcontrollers, Audio SoCs Family, Audio N57x Series	Audio NSP Series
Debugging	✓	✓	✓	✓	✓	✓
Online Programming	✓	✓	✓	✓	✓	✓	✓
Offline Programming	✓	✓	✓	✓	✓		✓
VCOM Port	✓	✓		✓ (Nu-Link V3.2 and above are supported)	✓	✓
Bus Monitor	✓	✓
ETM	✓	✓
SWD I/O Voltage	✓ 1.8/2.5/3.3/5.0	✓ 1.8/2.5/3.3/5.0	✓ 1.8/2.5/3.3/5.0	✓ 5.0	✓ 1.8/3.3/5.0	✓ 3.3/5.0	✓ 5
Upgrade	UART/SPI/I²C/I3C/RS-485/CAN FD/USB pen drive/MicroSD	UART/SPI/I²C/ RS-485/CAN/ USB pen drive/MicroSD			UART	UART
MicroPython	✓