NuMaker-M071R1E
Dec. 14, 2020
Page
23
of 46
Rev 1.00
N
UMA
K
E
R
-M0
71
R1
E
U
S
E
R MA
NUA
L
Ma
k
er Nu
-m
be
d
NUC
47
2
Us
er Man
ua
l
3.8
LEDs
Table 3-16 presents the LEDs.
Component
Description
Power LED
The power LED indicates that the NuMaker-M071R1E is powered.
PB14 LED
The LED is connected to the target chip PB.14.
ICES0, ICES1, ICES2
and ICES3
Nu-Link2-Me status LED.
Table 3-16 LEDs
3.9
Nu-Link2-Me
The Nu-Link2-Me is an attached on-board debugger and programmer. The Nu-Link2-Me supports on-
chip debugging, online and offline ICP programming through SWD interface. The Nu-Link2-Me also
supports virtual COM port (VCOM) for printing debug messages on PC. Besides, the programming
status could be shown on the built-in LEDs. Lastly, the Nu-Link2-Me could be detached from the
evaluation board and become a stand-alone mass production programmer. For more information about
Nu-Link2-Me, please refer to
Nu-Link2-Pro Debugger and Programmer User Manual
.
3.9.1
VCOM Switches
Table 3-17 presents how to set the VCOM function by ICESW2.
ICESW2
Pin
Function
Description
1
TXD
On
: Connect target chip PB.13 (UART0_TXD) to Nu-Link2-Me.
Off
: Disconnect target chip PB.13 (UART0_TXD) to Nu-Link2-Me.
2
RXD
On
: Connect target chip PB.12 (UART0_RXD) to Nu-Link2-Me.
Off
: Disconnect target chip PB.12 (UART0_RXD) to Nu-Link2-Me.
Note:
Pin 3 and 4 is unused.
Table 3-17 VCOM Function of Nu-Link2-Me
