NuMaker-M483KG
May.
10, 2019
Page
19
of 40
Rev 1.00
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2.5.8 Power Supply Models
External Power Supply through Nu-Link2-Me to Target Chip
2.5.8.1
The external power supply source on Nu-Link2-Me is shown in Figure 2-5.
ICE USB Connector (ICEJ3)
Nu-Link2-Me
Figure 2-5 External Power Supply Sources on Nu-Link2-Me
To use ICEJ3 as external power supply source with Nu-Link2-Me, please follow the below steps:
1. Solder the resistor on ICEJPR1 (MCUVCC) depends on the target chip operating voltage.
2. Solder the resistor on ICEJPR2 (ICEVCC) depends on the ICE chip operating voltage.
3. Connect the external power supply to JP1.
Table 2-13 presents all power models when supplies external power through Nu-Link2-Me. The Nu-
Link2-Me external power sources are highlighted in yellow.
Model
Target
Chip
Voltage
ICEJ3
ICEJPR1
(MCUVCC)
Selection
[1]
ICEJPR2
(ICEVCC)
Selection
[2]
ICE Chip
Voltage
J2
Vin
JP1
1
1.8 V
Connect
to PC
1.8 V
1.8 V
1.8 V
Ignore
Ignore
1.8 V
output
2
3.3 V
Connect
to PC
3.3 V (default)
3.3 V (default)
3.3 V
Ignore
Ignore
3.3 V
output
3
5 V
Connect
to PC
5V
3.3 V (default)
3.3 V
Ignore
Ignore
5 V
output
X: Unused.
Note
:
1.
0
Ω should be soldered between ICEJPR1’s MCUVCC and 1.8 V / 3.3 V / 5 V.
2.
0
Ω should be soldered between ICEJPR2’s ICEVCC and 1.8 V / 3.3 V.
Table 2-13 Supply External Power through Nu-Link2-Me
