Nuvoton NuMicro NuMaker-NUC029SGE User manual

NuMaker-NUC029SGE
Jul. 20, 2022 Page 1of 39 Rev 1.00
NUMAKER-NUC029SGE USER MANUAL
Maker Nu-mbed NUC472 User Manual
NuMicro® Family
Arm®Cortex®-M0-based Microcontroller
NuMaker-NUC029SGE
User Manual
Evaluation Board for NuMicro®NUC029SG Series
The information described in this document is the exclusive intellectual property of
Nuvoton Technology Corporation and shall not be reproduced without permission from Nuvoton.
Nuvoton is providing this document only for reference purposes of NuMicro microcontroller and
microprocessor based system design. Nuvoton assumes no responsibility for errors or omissions.
All data and specifications are subject to change without notice.
For additional information or questions, please contact: Nuvoton Technology Corporation.
www.nuvoton.com

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Table of Contents
1OVERVIEW......................................................................................................6
2FEATURES......................................................................................................7
3HARDWARE CONFIGURATION.....................................................................8
3.1 Front View....................................................................................................................... 8
3.2 Rear View ....................................................................................................................... 9
3.3 Extension Connectors................................................................................................. 10
3.3.1 Pin Assignment for Extension Connectors .................................................................10
3.3.2 Arduino UNO Compatible Extension Connectors......................................................13
3.4 Power Supply Configuration ...................................................................................... 15
3.4.1 VIN Power Source..........................................................................................................15
3.4.2 5 V Power Sources ........................................................................................................15
3.4.3 3.3 V Power Sources .....................................................................................................16
3.4.4 1.8 V Power Sources .....................................................................................................16
3.4.5 Power Connectors..........................................................................................................16
3.4.6 USB Connectors .............................................................................................................17
3.4.7 Power Switches ..............................................................................................................17
3.4.8 Power Supply Models ....................................................................................................17
3.5 External Reference Voltage Connector.................................................................... 21
3.6 Ammeter Connector.................................................................................................... 21
3.7 Push Buttons................................................................................................................ 21
3.8 LEDs.............................................................................................................................. 22
3.9 Nu-Link2-Me................................................................................................................. 22
3.9.1 VCOM Switches..............................................................................................................22
3.9.2 Status LEDs ....................................................................................................................23
4QUICK START...............................................................................................24
4.1 Toolchains Supporting ................................................................................................ 24
4.2 Nuvoton Nu-Link Driver Installation.......................................................................... 24
4.3 BSP Firmware Download ........................................................................................... 26
4.4 Hardware Setup........................................................................................................... 26
4.5 Find the Example Project ........................................................................................... 28
4.6 Execute the Project under Toolchains...................................................................... 28
4.6.1 Keil MDK..........................................................................................................................28
4.6.2 IAR EWARM....................................................................................................................32
5NUMAKER-NUC029SGE SCHEMATICS......................................................34
5.1 Nu-Link2-Me................................................................................................................. 34

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5.2 NuMaker-NUC029SGE Schematics......................................................................... 35
5.3 Extension Connectors................................................................................................. 36
5.4 PCB Placement ........................................................................................................... 37
6REVISION HISTORY .....................................................................................38

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List of Figures
Figure 1-1 NuMaker-NUC029SGE Evaluation Board...................................................................... 6
Figure 3-1 Front View of NuMaker-NUC029SGE............................................................................ 8
Figure 3-2 Rear View of NuMaker-NUC029SGE............................................................................. 9
Figure 3-3 NUC029SGE Extension Connectors............................................................................ 10
Figure 3-4 Arduino UNO Compatible Extension Connectors......................................................... 13
Figure 3-5 External Power Supply Sources on Nu-Link2-Me ........................................................ 17
Figure 3-6 External Power Supply Sources on NUC029SG Target Board.................................... 18
Figure 3-7 Detach the Nu-Link2-Me from NuMaker-NUC029SGE................................................ 19
Figure 3-8 Wiring between Ammeter Connector and Ammeter..................................................... 21
Figure 4-1 Nu-Link USB Driver Installation Setup.......................................................................... 24
Figure 4-2 Nu-Link USB Driver Installation.................................................................................... 25
Figure 4-3 Open VCOM Function .................................................................................................. 26
Figure 4-4 ICE USB Connector...................................................................................................... 26
Figure 4-5 Device Manger.............................................................................................................. 27
Figure 4-6 PuTTY Session Setting................................................................................................. 27
Figure 4-7 Template Project Folder Path....................................................................................... 28
Figure 4-8 Warning Message of “Device not found” ...................................................................... 28
Figure 4-9 Project File Migrate to Version 5 Format...................................................................... 29
Figure 4-10 Debugger Setting in Options Window......................................................................... 29
Figure 4-11 Programming Setting in Options Window................................................................... 30
Figure 4-12 Compile and Download the Project............................................................................ 30
Figure 4-13 Keil MDK Debug Mode............................................................................................... 31
Figure 4-14 Debug Message on Serial Port Terminal Windows.................................................... 31
Figure 4-15 IAR EWARM Window................................................................................................. 32
Figure 4-16 Compile and Download the Project............................................................................ 32
Figure 4-17 IAR EWARM Debug Mode ......................................................................................... 33
Figure 4-18 Debug Message on Serial Port Terminal Windows.................................................... 33
Figure 5-1 Nu-Link2-Me Circuit...................................................................................................... 34
Figure 5-2 NUC029SGE Target Board Circuit............................................................................... 35
Figure 5-3 Extension Connectors Circuit ....................................................................................... 36
Figure 5-4 Front Placement ........................................................................................................... 37
Figure 5-5 Rear Placement............................................................................................................ 37

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List of Tables
Table 3-1 Extension Connectors.................................................................................................... 10
Table 3-2 NUC029SG Full-pin Extension Connectors and GPIO Function List............................ 12
Table 3-3 Arduino UNO Extension Connectors and NUC029SG Mapping GPIO List .................. 14
Table 3-4 Vin Power Source.......................................................................................................... 15
Table 3-5 5 V Power Sources........................................................................................................ 15
Table 3-6 3.3 V Power Sources..................................................................................................... 16
Table 3-7 1.8 V Power Sources..................................................................................................... 16
Table 3-8 Power Connectors ......................................................................................................... 16
Table 3-9 USB Connectors ............................................................................................................ 17
Table 3-10 Power Switches ........................................................................................................... 17
Table 3-11 Supply External Power through Nu-Link2-Me ............................................................. 18
Table 3-12 Supply External Power for NUC029SG Target Board................................................. 20
Table 3-13 External Reference Voltage Connector....................................................................... 21
Table 3-14 Ammeter Connector..................................................................................................... 21
Table 3-15 Push Buttons................................................................................................................ 21
Table 3-16 LEDs ............................................................................................................................ 22
Table 3-17 VCOM Function of Nu-Link2-Me.................................................................................. 22
Table 3-18 Operation Status LED Patterns ................................................................................... 23

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1 OVERVIEW
The NuMaker-NUC029SGE is an evaluation board for Nuvoton NuMicro NUC029SGE and
NUC029LGE microcontrollers. The NuMaker-NUC029SGE consists of two parts: an NUC029SG target
board and an on-board Nu-Link2-Me debugger and programmer. The NuMaker-NUC029SGE is
designed for project evaluation, prototype development and validation with power consumption
monitoring function.
The NUC029SG target board is based on NuMicro NUC029SGE. For the development flexibility, the
NUC029SG target board provides the extension connectors, the Arduino UNO compatible headers and
the capability of adopting multiple power supplies. Furthermore, the Nuvoton-designed ammeter
connector can measure the power consumption instantly, which is essential for the prototype evaluation.
In addition, there is an attached on-board debugger and programmer “Nu-Link2-Me”. The Nu-Link2-Me
supports on-chip debugging, online and offline ICP programming via SWD interface. The Nu-Link2-Me
supports virtual COM (VCOM) port 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.
Figure 1-1 NuMaker-NUC029SGE Evaluation Board

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2 FEATURES
NuMicro NUC029SGE used as main microcontroller with function compatible with:
–NUC029SGE
–NUC029LGE
NUC029SGE full pins extension connectors
Arduino UNO compatible extension connectors
Ammeter connector for measuring the microcontroller’s power consumption
Flexible board power supply:
–External VDD power connector
–Arduino UNO compatible extension connector Vin
–USB FS connector on NUC029SG target board
–ICE USB connector on Nu-Link2-Me
On-board Nu-Link2-Me debugger and programmer:
–Debug through SWD interface
–Online/offline programming
–Virtual COM port function

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3 HARDWARE CONFIGURATION
3.1 Front View
Figure 3-1 Front View of NuMaker-NUC029SGE
Figure 3-1 shows the main components and connectors from the front side of NuMaker-NUC029SGE.
The following lists components and connectors from the front view:
Target chip: NUC029SGE (U1)
USB PWR Connector (J2)
Arduino UNO Compatible Extension Connectors (NU1, NU2, NU3, NU4)
NUC029SG Extension Connectors (JP3, JP4, JP5 and JP6)
External VDD Power Connector (JP1)
External VSS Power Connector (JP2)
External VREF Connector (VREF1)
VDD Switch (SW2)
Ammeter Connector (AMMETER)
Reset Button (SW1)
Power LED and PB14 LED (LEDG1 and LEDR1)
Nu-Link2-Me
–VCOM Switch
–ICE Chip: M48SSIDAE (ICEU2)
–ICE USB Connector (ICEJ3)
–ICE Status LED (ICES0, ICES1, ICES2, ICES3)
–Off-line Program Button (ICESW1)

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3.2 Rear View
Figure 3-2 shows the main components and connectors from the rear side of NuMaker-NUC029SGE.
The following lists components and connectors from the rear view:
Nu-Link2-Me
–MCUVCC Power Switch (ICEJPR1)
–ICEVCC Power Switch (ICEJPR2)
Figure 3-2 Rear View of NuMaker-NUC029SGE

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3.3 Extension Connectors
Table 3-1 presents the extension connectors.
Connector
Description
JP3, JP4, JP5 and JP6
Full pins extension connectors on the NuMaker-NUC029SGE.
NU1, NU2, NU3 and
NU4
Arduino UNO compatible pins on the NuMaker-NUC029SGE.
Table 3-1 Extension Connectors
3.3.1 Pin Assignment for Extension Connectors
The NuMaker-NUC029SGE provides the NUC029SGE onboard and extension connectors (JP3, JP4,
JP5 and JP6). Figure 3-3 shows the NUC029SGE extension connectors.
Figure 3-3 NUC029SGE Extension Connectors

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Header
NUC029SGE
Pin No.
Function
JP3
JP3.1
1
PB.15/ADC0_CH12/ACMP0_P3/EBI_nCS1
JP3.2
2
PB.5/ADC0_CH13/SPI0_MOSI/SPI1_MOSI/ACMP0_P2/SC1_RST/EBI_AD6/UART2_RXD
JP3.3
3
PB.6/ADC0_CH14/SPI0_MISO/SPI1_MISO/ACMP0_P1/SC1_PWR/EBI_AD5
JP3.4
4
PB.7/ADC0_CH15/SPI0_CLK/SPI1_CLK/USCI2_CTL1/ACMP0_P0/SC1_DAT/EBI_AD4
JP3.5
5
nRESET，Note: It is recommended to use 10 kΩpull-up resistor and 10 uF capacitor on nRESET
pin.
JP3.6
6
PD.0/SPI0_I2SMCLK/SPI1_I2SMCLK/UART0_RXD/USCI2_CTL0/ACMP1_N/SC1_CLK/INT3
JP3.7
7
AVSS
JP3.8
8
PD.8/ADC0_CH17/UART0_nCTS/USCI2_CTL1/TM2/EBI_nCS0
JP3.9
9
PD.9/ADC0_CH18/UART0_RXD/USCI2_CTL0/ACMP1_P3/TM3/EBI_ALE
JP3.10
10
PD.1/ADC0_CH19/PWM0_SYNC_IN/UART0_TXD/USCI2_CLK/ACMP1_P2
JP3.11
11
PD.2/ADC0_ST/TM0_EXT/USCI2_DAT0/ACMP1_P1/PWM0_BRAKE0/EBI_nWR/INT0
JP3.12
12
PD.3/TM2/SPI0_I2SMCLK/TM1_EXT/USCI2_DAT1/ACMP1_P0/PWM0_BRAKE1/EBI_MCLK/INT1
JP3.13
13
VBAT
JP3.14
14
PF.0/X32_OUT/USCI2_CTL1/INT5
JP3.15
15
PF.1/X32_IN/USCI2_CTL0/PWM1_BRAKE0
JP3.16
16
PF.2/USCI2_CLK/PWM1_BRAKE1
JP5
JP5.1
17
PD.12/USCI1_CTL0/SPI1_SS/UART0_TXD/PWM1_CH0/EBI_ADR16
JP5.2
18
PD.13/USCI1_DAT1/SPI1_MOSI/UART0_RXD/PWM1_CH1/EBI_ADR17
JP5.3
19
PD.14/USCI1_DAT0/SPI1_MISO/UART0_nCTS/PWM1_CH2/EBI_ADR18
JP5.4
20
PD.15/USCI1_CLK/SPI1_CLK/UART0_nRTS/PWM1_CH3/EBI_ADR19
JP5.5
21
PD.7/USCI1_CTL1/SPI0_I2SMCLK/PWM0_SYNC_IN/TM1/ACMP0_O/PWM0_CH5/EBI_nRD
JP5.6
22
PF.3/XT1_OUT/I2C1_SCL
JP5.7
23
PF.4/XT1_IN/I2C1_SDA
JP5.8
24
VSS
JP5.9
25
VDD
JP5.10
26
LDO_CAP
JP5.11
27
PC.0/SC0_DAT/SPI0_CLK/UART2_nCTS/USCI0_DAT0/ACMP0_WLAT/PWM0_CH0/EBI_AD8/INT
2
JP5.12
28
PC.1/CLKO/SC0_CLK/UART2_nRTS/USCI0_DAT1/ACMP1_WLAT/PWM0_CH1/EBI_AD9
JP5.13
29
PC.2/SC0_RST/SPI0_SS/UART2_TXD/USCI0_CTL1/ACMP1_O/PWM0_CH2/EBI_AD10
JP5.14
30
PC.3/SC0_PWR/SPI0_MOSI/UART2_RXD/USCI0_CTL0/PWM0_CH3/EBI_AD11
JP5.15
31
PC.4/SC0_nCD/SPI0_MISO/I2C1_SCL/USCI0_CLK/PWM0_CH4/EBI_AD12
JP5.16
32
PC.5/SPI0_I2SMCLK/I2C1_SDA/USCI0_DAT0/PWM0_CH5/EBI_AD13

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Header
NUC029SGE
Pin No.
Function
JP4
JP4.1
33
PC.6/USCI0_DAT1/ACMP1_O/PWM1_CH0/EBI_AD14
JP4.2
34
PC.7/USCI0_CTL1/PWM1_CH1/EBI_AD15
JP4.3
35
PE.6/ICE_CLK/I2C0_SCL/UART0_RXD
JP4.4
36
PE.7/ICE_DAT/I2C0_SDA/UART0_TXD
JP4.5
37
PE.8/UART1_TXD/TM0/I2C1_SCL/SC0_PWR
JP4.6
38
PE.9/UART1_RXD/TM1/I2C1_SDA/SC0_RST
JP4.7
39
PE.10/SPI1_MISO/SPI0_MISO/UART1_nCTS/SC0_DAT/SPI1_CLK/EBI_AD7/TM0_EXT
JP4.8
40
PE.11/SPI1_MOSI/SPI0_MOSI/UART1_nRTS/SC0_CLK/SPI1_MISO/EBI_AD6/TM1_EXT
JP4.9
41
PE.12/SPI1_SS/SPI0_SS/UART1_TXD/I2C0_SCL/SPI1_MOSI/EBI_AD5/TM2_EXT
JP4.10
42
PE.13/SPI1_CLK/SPI0_CLK/UART1_RXD/I2C0_SDA/SPI1_SS/EBI_AD4/TM3_EXT
JP4.11
43
VDDIO
JP4.12
44
USB_VBUS
JP4.13
45
USB_D-
JP4.14
46
USB_D+
JP4.15
47
PF.7
JP4.16
48
USB_VDD33_CAP
JP6
JP6.1
49
PA.3/UART0_RXD/UART0_nRTS/I2C0_SCL/SC0_PWR/PWM1_CH2/EBI_AD3/USCI1_CLK
JP6.2
50
PA.2/UART0_TXD/UART0_nCTS/I2C0_SDA/SC0_RST/PWM1_CH3/EBI_AD2/USCI1_CTL0
JP6.3
51
PA.1/UART1_nRTS/UART1_RXD/USCI1_CTL1/SC0_DAT/PWM1_CH4/EBI_AD1
JP6.4
52
PA.0/UART1_nCTS/UART1_TXD/USCI1_CTL0/SC0_CLK/PWM1_CH5/EBI_AD0/INT0
JP6.5
53
VSS
JP6.6
54
VDD
JP6.7
55
AVDD
JP6.8
56
VREF
JP6.9
57
PB.0/ADC0_CH0/VDET_P0/UART2_RXD/TM2/USCI1_DAT0/EBI_nWRL/INT1/TM1_EXT
JP6.10
58
PB.1/ADC0_CH1/VDET_P1/UART2_TXD/TM3/SC0_RST/PWM0_SYNC_OUT/EBI_nWRH/USCI1_
DAT1
JP6.11
59
PB.2/ADC0_CH2/SPI0_CLK/SPI1_CLK/UART1_RXD/SC0_nCD/TM_BRAKE0/EBI_nCS0/USCI0_D
AT0/TM2_EXT
JP6.12
60
PB.3/ADC0_CH3/SPI0_MISO/SPI1_MISO/UART1_TXD/TM_BRAKE1/EBI_ALE/USCI0_DAT1/TM0
_EXT
JP6.13
61
PB.4/ADC0_CH4/SPI0_SS/SPI1_SS/UART1_nCTS/ACMP0_N/SC1_nCD/EBI_AD7/USCI0_CTL1/U
ART2_RXD/TM1_EXT
JP6.14
62
PB.8/ADC0_CH5/UART1_nRTS/TM_BRAKE2/PWM0_CH2/USCI0_CTL0
JP6.15
63
PB.11/ADC0_CH8
JP6.16
64
PE.2/ADC0_CH9/UART1_nRTS/TM_BRAKE3/PWM0_CH2/USCI0_CTL0
Table 3-2 NUC029SG Full-pin Extension Connectors and GPIO Function List

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3.3.2 Arduino UNO Compatible Extension Connectors
Figure 3-4 shows the Arduino UNO compatible extension connectors.
Figure 3-4 Arduino UNO Compatible Extension Connectors

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Header
NuMaker-NUC029SGE
Header
NuMaker-NUC029SGE
Compatible to
Arduino UNO
GPIO Pin of
NUC029SG
Compatible to
Arduino UNO
GPIO Pin of
NUC029SG
NU3
NU3.1
RX
PB.0
NU2
NU2.6
SCL
PC.4
NU3.2
TX
PB.1
NU2.5
SDA
PC.5
NU3.3
D2
PA.3
NU2.4
A3
PB.4
NU3.4
D3
PA.2
NU2.3
A2
PB.3
NU3.5
D4
PA.1
NU2.2
A1
PB.6
NU3.6
D5
PA.0
NU2.1
A0
PB.5
NU3.7
D6
PC.0
NU1
NU1.8
VIN
-
NU3.8
D7
PC.1
NU1.7
VSS
NU4
NU4.1
D8
PC.3
NU1.6
VSS
NU4.2
D9
PD.7
NU1.5
5V
NU4.3
SS/D10
PC.2
NU1.4
3V
NU4.4
MOSI
PE.11
NU1.3
RST
nRESET
NU4.5
MISO
PE.10
NU1.2
IOREF
VREF
NU4.6
SCK
PB.2
NU1.1
NC
-
NU4.7
VSS
VSS
NU4.8
VREF
VREF
NU4.9
SDA
PE.13
NU4.10
SCL
PE.12
Table 3-3 Arduino UNO Extension Connectors and NUC029SG Mapping GPIO List

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3.4 Power Supply Configuration
The NuMaker-NUC029SGE is able to adopt multiple power supplies. External power sources include
NU1 Vin (7 V to 12 V), VDD (depending on the target chip operating voltage), and PC through USB
connector. By using switches and voltage regulator, multiple power domains can be created on the
NuMaker-NUC029SGE.
3.4.1 VIN Power Source
Table 3-4 presents the Vin power source.
Connector
Net Name in
Schematic
Description
NU1 pin8
NU1_VIN
Board external power source, with voltage range from 7
V to 12 V. The voltage regulator UP2 converts the NU1
pin8 input voltage to 5 V and supplies it to NU1_5VCC.
Table 3-4 Vin Power Source
3.4.2 5 V Power Sources
Table 3-5 presents the 5 V power sources.
Connector
Net Name in
Schematic
Description
ICEJ3
USB_HS_VBUS
ICE USB connector supplies 5 V power from PC to
NUC029SG target board and Nu-Link2-Me.
J2
USB_VBUS
USB connector on NuMaker-NUC029SGE supplies 5 V
power from PC to NUC029SG target board and Nu-
Link2-Me.
NU1 pin5
NU1_5VCC
ICEJ3, J2 or NU1 pin8 supplies 5 V power to NU1 pin5.
NU1 pin5 supplies 5 V power to target chip or Arduino
adapter board.
Table 3-5 5 V Power Sources

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3.4.3 3.3 V Power Sources
Table 3-6 presents the 3.3 V power sources.
Voltage
Regulator
5 V Source
Description
ICEUP1
USB_HS_VBUS
ICEUP1 converts USB_HS_VBUS to 3.3 V and
supplies 3.3 V to NUC029SG target board or ICE chip.
UP1
USB_VBUS
UP1 converts USB_VBUS to 3.3 V and supplies 3.3 V
to NUC029SG target board.
Note: SW2.2 (NU1 3VCC) should be switched to ON.
UP1
NU1_5VCC
UP1 converts NU1_5VCC to 3.3 V and supplies 3.3 V
to NUC029SG target board.
Note: SW2.2 (NU1 3VCC) should be switched to ON.
Table 3-6 3.3 V Power Sources
3.4.4 1.8 V Power Sources
Table 3-7 presents the 1.8 V power source.
Voltage Regular
5V Source
Description
ICEUP2
USB_HS_VBUS
ICEUP2 converts USB_HS_VBUS to 1.8 V and
supplies 1.8 V to NUC029SG target board or ICE chip.
Table 3-7 1.8 V Power Sources
3.4.5 Power Connectors
Table 3-8 presents the power connectors.
Connector
Description
JP1
VDD connector on the NuMaker-NUC029SGE.
JP2
VSS connector on the NuMaker-NUC029SGE.
Table 3-8 Power Connectors

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3.4.6 USB Connectors
Table 3-9 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-NUC029SGE for power supply.
Table 3-9 USB Connectors
3.4.7 Power Switches
Table 3-10 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 3-10 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.
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.
Solder the resistor on ICEJPR2 (ICEVCC) depending on the ICE chip operating voltage.
Switch the SW2 to OFF.

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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
External Power Supply through NUC029SG Target Board to Target Chip
The external power supply sources on NUC029SG target board are shown in Figure 3-6.
Figure 3-6 External Power Supply Sources on NUC029SG Target Board
To use Vin or J2 as external power supply source, please follow the steps below:
Switch the SW2 depending on the target chip operating voltage.
Remove the resistor on ICEJPR1 (MCUVCC).
Solder the resistor on ICEJPR2 (ICEVCC) depending on the ICE chip operating voltage.
Connect the external power supply to Vin or J2.
To use JP1 as external power supply source, please follow the steps below:
Switch the SW2 to OFF.
Remove the resistor on ICEJPR1 (MCUVCC).
Solder the resistor on ICEJPR2 (ICEVCC) depending on the ICE chip operating voltage.

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Connect ICEJ3 to PC.
Connect the external power supply to JP1.
To use Vin or J2 as external power supply source with Nu-Link2-Me detached from NuMaker-
NUC029SGE, please follow the steps below:
Switch the SW2 depending on the target chip operating voltage.
Detach the Nu-Link2-Me from NuMaker-NUC029SGE.
Connect the external power supply to Vin or J2.
To use JP1 as external power supply source with Nu-Link2-Me detached from NuMaker-
NUC029SGE, please follow the steps below:
Switch the SW2 to OFF.
Detach the Nu-Link2-Me from NuMaker-NUC029SGE.
Connect the external power supply to JP1.
Figure 3-7 Detach the Nu-Link2-Me from NuMaker-NUC029SGE

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Table 3-12 presents all power models when supplies external power through NUC029SG target board.
The NUC029SG target board external power sources are highlighted in yellow.
Model
Target Chip
Voltage
Vin [1]
J2[1]
ICEJ3
SW2
Selection
JP1[2]
ICEJPR1
(MCUVCC)
Selection [3]
ICEJPR2
(ICEVCC)
Selection [4]
ICE Chip
Voltage [5]
4
3.3 V
7 V ~ 12 V
Input
-
-
NU1
3VCC
3.3 V output
Remove
resistor
3.3 V
3.3 V
5
3.3 V
-
Connect
to PC
-
NU1
3VCC
3.3 V output
Remove
resistor
3.3 V
3.3 V
6
5 V
7 V ~ 12 V
Input
-
-
NU1
5VCC
5 V output
Remove
resistor
3.3 V
3.3 V
7
5 V
-
Connect
to PC
-
NU1
5VCC
5 V output
Remove
resistor
3.3 V
3.3 V
8
2.5 V ~ 5.5 V
-
-
Connect to
PC
OFF
DC Input
2.5 V ~ 5.5 V
Remove
resistor
1.8 V / 3.3 V
1.8 V / 3.3 V
9
2.5 V ~ 5.5 V
-
-
Nu-Link2-Me
removed
OFF
DC Input
2.5 V ~ 5.5 V
-
-
-
Note:
1. The Vin input voltage will be converted by voltage regulator UP2 to 5 V. Supplying external power to Vin or J2 can
provide 5 V to NU1 pin5 (5V) and 3.3 V to NU1 pin4 (3VCC).
2. JP1 external power input only provides voltage to target chip.
3. 0 Ω should be removed from ICEJPR1’s MCUVCC and 1.8 V / 3.3 V / 5 V.
4. 0 Ω should be soldered between ICEJPR2’s ICEVCC and 1.8 V / 3.3 V.
5. The ICE chip voltage should be close to the target chip voltage.
6. -: Unused
Table 3-12 Supply External Power for NUC029SG Target Board