NuMaker-M258KG
Jan. 15, 2022
Page
22
of 54
Rev 1.00
N
UMA
K
E
R
-M
2
58
KG
US
E
R MA
NUA
L
Ma
k
er Nu
-m
be
d
NUC
47
2
Us
er Man
ua
l
3.4.6
USB Connectors
Table 3-10 presents the USB connectors.
Connector
Description
ICEJ3
ICE USB connector on Nu-Link2-Me for power supply, debugging and
programming from PC.
J2
USB FS connector on NuMaker-M258KG for power supply.
Table 3-10 USB Connectors
3.4.7
Power Switches
Table 3-11 presents the power switches.
Switch
Description
ICEJPR1
Configures the target chip operating voltage at 1.8 V / 3.3 V / 5 V.
ICEJPR2
Configures the ICE chip operating voltage at 1.8 V / 3.3 V.
SW2
Configures the target chip operating voltage at 3.3 V / 5 V.
Table 3-11 Power Switches
3.4.8
Power Supply Models
External Power Supply through Nu-Link2-Me to Target Chip
The external power supply source on Nu-Link2-Me is shown in Figure 3-5.
ICE USB Connector (ICEJ3)
Nu-Link2-Me
Figure 3-5 External Power Supply Sources on Nu-Link2-Me
To use ICEJ3 as external power supply source with Nu-Link2-Me, please follow the steps below:
Solder the resistor on ICEJPR1 (MCUVCC) depending on the target chip operating voltage.
