NUC029KGE
Mar 4, 2019
Page
27
of 47
Rev 1.00
NUT
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DK
-NU
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9K
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NUA
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2.3.5 USB Connectors
Table 2-6 presents the USB connectors.
Connector
Comment
ICEJ3
ICE USB connector on Nu-Link2-Me for power supply, debugging and
programming from PC.
J2
USB power connector on NuTiny-SDK-NUC029KGE for power supply.
Table 2-6 USB Connectors
2.3.6 Power Switches
Table 2-7 presents the power switches.
Switch
Comment
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.
Table 2-7 Power Switches
2.3.7 Power Supply Models
External Power Supply through Nu-Link2-Me to Target Chip
2.3.7.1
The external power supply source on Nu-Link2-Me is shown in Figure 2-2.
MCUVCC:
1.8V, 3.3V or 5V
(ICEJPR1)
ICEVCC:
1.8V or 3.3V (ICEJPR2)
ICE USB
Connector
(ICEJ3)
Nu-Link2-Me
Figure 2-2 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.