NuMaker-M032BTAI
Apr. 19, 2022
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Rev 1.00
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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:
1. Solder the resistor on ICEJPR1 (MCUVCC) depending on the target chip operating voltage.
2. Solder the resistor on ICEJPR2 (ICEVCC) depending on the ICE chip operating voltage.
3. Switch the SW2 to OFF.
4. Connect the external power supply to ICEJ3.
Table 3-11 presents all power models when supplying 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
SW2
Selection
J2
Vin
JP1
1
1.8 V
Connect to
PC
1.8 V
1.8 V
1.8 V
Off
-
-
1.8 V
output
2
3.3 V
Connect to
PC
3.3 V (default)
3.3 V (default)
3.3 V
Off
-
-
3.3 V
output
3
5 V
Connect to
PC
5 V
3.3 V (default)
3.3 V
Off
-
-
5 V
output
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.
3. -: Unused.
Table 3-11 Supply External Power through Nu-Link2-Me
