
Nu-Link2-Pro Debugger and Programmer
Mar. 13, 2020
Page
30
of 77
Rev 1.00
NU
-LINK
2
-P
RO
D
E
B
UG
G
E
R
a
nd
P
RO
G
RA
MM
E
R U
S
E
R
M
A
NUA
L
Ma
k
er Nu
-m
be
d
NUC
47
2
Us
er Man
ua
l
ETM
Micro USB
NuMicro® Family
Target Board
GND
GND
VCC
VSS(GND)
KEY
NC
VSS(GND)
NC
VSS(GND)
VSS(GND)
SWDCLK
NC
SWDIO
nRESET
NC
TRACECLK
TRACED4
TRACED1
TRACED3
TRACED2
Figure 3.4-1 ETM
Interface
Connection Diagram for SWD and ETM Function
ETM Connection
The ETM interface provides ETM function for capturing execution steps of microprocessor on the target
board, and ETM will display them a readability format. Figure 3.4-1 presents how to connect the target
board to use ETM function.
ICP Offline Programming Function Connection
The Nu-Link2-Pro provides three kinds storage interface for Nu-Link2-Pro ICP offline programming. The
user can save the bin file to USB Flash drive, Micro SD card or SPI Flash for offline programming. The
priority of reading from these three storage is USB Flash drive > Micro SD card > SPI Flash. Figure
3.5-1 presents how to connect the target board to use GPIO function.