Nuvoton NuMaker-M258KG User manual

NuMaker-M258KG
Jan. 15, 2022 Page 1of 54 Rev 1.00
NUMAKER-M258KG USER MANUAL
Maker Nu-mbed NUC472 User Manual
NuMicro® Family
Arm®Cortex®-M23-based Microcontroller
NuMaker-M258KG
User Manual
Evaluation Board for NuMicro®M254/256/258 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......................................................................................................7
2FEATURES......................................................................................................8
3HARDWARE CONFIGURATION.....................................................................9
3.1 Front View....................................................................................................................... 9
3.2 Rear View ..................................................................................................................... 10
3.3 Extension Connectors................................................................................................. 11
3.3.1 Pin Assignment for Extension Connectors .................................................................11
3.3.2 NuMaker-TNLCDSub_M258K Compatible Extension Connectors .........................16
3.3.3 Arduino UNO Compatible Extension Connectors......................................................18
3.4 Power Supply Configuration ...................................................................................... 20
3.4.1 VIN Power Source..........................................................................................................20
3.4.2 5 V Power Sources ........................................................................................................20
3.4.3 3.3 V Power Sources .....................................................................................................21
3.4.4 1.8 V Power Sources .....................................................................................................21
3.4.5 Power Connectors..........................................................................................................21
3.4.6 USB Connectors .............................................................................................................22
3.4.7 Power Switches ..............................................................................................................22
3.4.8 Power Supply Models ....................................................................................................22
3.5 External Reference Voltage Connector.................................................................... 26
3.6 Battery Voltage (VBAT) Connector.............................................................................. 26
3.7 Ammeter Connector.................................................................................................... 26
3.8 Touch Key..................................................................................................................... 26
3.9 Push Buttons................................................................................................................ 27
3.10 LEDs ........................................................................................................................ 28
3.11 LCD Panel .............................................................................................................. 28
3.12 Nu-Link2-Me ........................................................................................................... 30
3.12.1VCOM Switches..............................................................................................................30
3.12.2Status LEDs ....................................................................................................................31
4QUICK START...............................................................................................32
4.1 Toolchains Supporting ................................................................................................ 32
4.2 Nuvoton Nu-Link Driver Installation.......................................................................... 32
4.3 BSP Firmware Download ........................................................................................... 34
4.4 Hardware Setup........................................................................................................... 34
4.5 Find the Example Project ........................................................................................... 36
4.6 Execute the Project under Toolchains...................................................................... 36

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4.6.1 Keil MDK..........................................................................................................................36
4.6.2 IAR EWARM....................................................................................................................40
4.6.3 NuEclipse.........................................................................................................................41
5NUMAKER-M258KG SCHEMATICS.............................................................48
5.1 Nu-Link2-Me................................................................................................................. 48
5.2 M258KG Target Board................................................................................................ 49
5.3 Extension Connectors................................................................................................. 50
5.4 Touch Key..................................................................................................................... 51
5.5 PCB Placement ........................................................................................................... 52
6REVISION HISTORY .....................................................................................53

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List of Figures
Figure 1-1 NuMaker-M258KG Evaluation Board ............................................................................. 7
Figure 3-1 Front View of NuMaker-M258KG ................................................................................... 9
Figure 3-2 Rear View of NuMaker-M258KG.................................................................................. 10
Figure 3-3 M258KG6AE Extension Connectors ............................................................................ 11
Figure 3-4 Arduino UNO Compatible Extension Connectors......................................................... 18
Figure 3-5 External Power Supply Sources on Nu-Link2-Me ........................................................ 22
Figure 3-6 External Power Supply Sources on M258KG Target Board......................................... 23
Figure 3-7 Detach the Nu-Link2-Me from NuMaker-M258KG....................................................... 24
Figure 3-8 Wiring between Ammeter Connector and Ammeter..................................................... 26
Figure 3-9 LCD Digit Mapping Table ............................................................................................. 28
Figure 4-1 Nu-Link USB Driver Installation Setup.......................................................................... 32
Figure 4-2 Nu-Link USB Driver Installation.................................................................................... 33
Figure 4-3 Open VCOM Function .................................................................................................. 34
Figure 4-4 ICE USB Connector...................................................................................................... 34
Figure 4-5 Device Manger.............................................................................................................. 35
Figure 4-6 PuTTY Session Setting................................................................................................. 35
Figure 4-7 Template Project Folder Path....................................................................................... 36
Figure 4-8 Warning Message of “Device not found” ...................................................................... 36
Figure 4-9 Project File Migrate to Version 5 Format...................................................................... 37
Figure 4-10 Debugger Setting in Options Window......................................................................... 37
Figure 4-11 Programming Setting in Options Window................................................................... 38
Figure 4-12 Compile and Download the Project............................................................................ 38
Figure 4-13 Keil MDK Debug Mode............................................................................................... 39
Figure 4-14 Debug Message on Serial Port Terminal Windows.................................................... 39
Figure 4-15 IAR EWARM Window................................................................................................. 40
Figure 4-16 Compile and Download the Project............................................................................ 40
Figure 4-17 IAR EWARM Debug Mode ......................................................................................... 41
Figure 4-18 Debug Message on Serial Port Terminal Windows.................................................... 41
Figure 4-19 Import the Project in NuEclipse .................................................................................. 42
Figure 4-20 Import Projects Windows............................................................................................ 42
Figure 4-21 Open Project Properties Window ............................................................................... 43
Figure 4-22 Project Properties Settings......................................................................................... 43
Figure 4-23 Build Project................................................................................................................ 44
Figure 4-24 Open Debug Configuration......................................................................................... 44
Figure 4-25 Main Tab Configuration .............................................................................................. 45
Figure 4-26 Debugger Tab Configuration ...................................................................................... 45

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Figure 4-27 Startup Tab Configuration .......................................................................................... 46
Figure 4-28 NuEclipse Debug Mode.............................................................................................. 47
Figure 4-29 Debug Message on Serial Port Terminal Windows.................................................... 47
Figure 5-1 Nu-Link2-Me Circuit...................................................................................................... 48
Figure 5-2 M258KG Target Board Circuit...................................................................................... 49
Figure 5-3 Extension Connectors Circuit ....................................................................................... 50
Figure 5-4 Touch Key Circuit ......................................................................................................... 51
Figure 5-5 Front Placement ........................................................................................................... 52
Figure 5-6 Rear Placement............................................................................................................ 52

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List of Tables
Table 3-1 Extension Connectors.................................................................................................... 11
Table 3-2 M258KG6AE Full-pin Extension Connectors and GPIO Function List.......................... 15
Table 3-3 NuMaker-TNLCDSub_M258K Extension Connectors and M258KG6AE Mapping GPIO
List........................................................................................................................................... 17
Table 3-4 Arduino UNO Extension Connectors and M258KG6AE Mapping GPIO List ................ 19
Table 3-5 Vin Power Source.......................................................................................................... 20
Table 3-6 5 V Power Sources........................................................................................................ 20
Table 3-7 3.3 V Power Sources..................................................................................................... 21
Table 3-8 1.8 V Power Sources..................................................................................................... 21
Table 3-9 Power Connectors ......................................................................................................... 21
Table 3-10 USB Connectors.......................................................................................................... 22
Table 3-11 Power Switches ........................................................................................................... 22
Table 3-12 Supply External Power through Nu-Link2-Me ............................................................. 23
Table 3-13 Supply External Power for M258KG Target Board...................................................... 25
Table 3-14 External Reference Voltage Connector....................................................................... 26
Table 3-15 Battery Voltage Connector........................................................................................... 26
Table 3-16 Ammeter Connector..................................................................................................... 26
Table 3-17 Touch Key.................................................................................................................... 27
Table 3-18 Push Buttons................................................................................................................ 27
Table 3-19 LEDs ............................................................................................................................ 28
Table 3-20 LCD Specifications....................................................................................................... 29
Table 3-21 LCD Pin Mapping Table............................................................................................... 30
Table 3-22 VCOM Function of Nu-Link2-Me.................................................................................. 30
Table 3-23 Operation Status LED Patterns ................................................................................... 31

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1 OVERVIEW
The NuMaker-M258KG is an evaluation board for Nuvoton NuMicro M258KG, M258SG, and M258QG
microcontrollers with COM/SEG LCD driver, USB 2.0 FS device and capacitive touch key sensing
function. The NuMaker-M258KG consists of two parts: an M258KG target board and an on-board Nu-
Link2-Me debugger and programmer. The NuMaker-M258KG is designed for project evaluation,
prototype development and validation with power consumption monitoring function.
The M258KG target board is based on NuMicro M258KG6AE to evaluate the capacitive touch key
sensing function on TK14 with message display on 8 x 40 HTN-LCD panel for Human Machine Interface
application. For the development flexibility, the M258KG 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-M258KG Evaluation Board

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2 FEATURES
NuMicro M258KG6AE used as main microcontroller with function compatible with:
–M258KG6AE
–M258SG6AE
–M258QG6AE
M258KG6AE full pins extension connectors
–HTN-LCD panel board can be plugged into 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 M258KG target board
–ICE USB connector on Nu-Link2-Me
Supports one touch key on board
–Equipped with 1 touch key + reference pad + shielding electrode
–Touch development tool can set the hardware and software parameters automatically
Supports 8 x 40 COM/SEG HTN-LCD panel on NuMaker-TNLCDSub_M258K
–1/4 bias, 1/8 duty, 8 x 40 COM/SEG
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
ICE USB Connector
VCOM Switch
Reset Button
ICE Status LED
Off-line Program Button
USB FS Connector
External VREF Connector
PB14 LED
VDD Switch
M258KG6AE M258KG6AE Extension Connectors
Arduino UNO Compatible Extension Connectors
External VDD Connector
Nu-Link2-Me
Ammeter
ICE Chip: M48SSIDAE
External VSS Connector
M258 Target Board External VBAT Connector
Power LED
TK14 Touch Key
TK16 Shileding
Figure 3-1 Front View of NuMaker-M258KG
Figure 3-1 shows the main components and connectors from the front side of NuMaker-M258KG. The
following lists components and connectors from the front view:
Target chip: M258KG6AE (U1)
USB FS Connector (J2)
Arduino UNO Compatible Extension Connectors (NU1, NU2, NU3, NU4)
M258 Extension Connectors (JP3, JP4, JP5 and JP6)
External VDD Power Connector (JP1)
External VSS Power Connector (JP2)
External VREF Connector (VREF1)
External VBAT Connector (VBAT)
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-M258KG.
The following lists components and connectors from the rear view:
Nu-Link2-Me
–MCUVCC Power Switch (ICEJPR1)
–ICEVCC Power Switch (ICEJPR2)
MCUVCC Power Switch
ICEVCC Power Switch
Figure 3-2 Rear View of NuMaker-M258KG

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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-M258KG.
NU1, NU2, NU3 and
NU4
Arduino UNO compatible pins on the NuMaker-M258KG.
Table 3-1 Extension Connectors
3.3.1 Pin Assignment for Extension Connectors
The NuMaker-M258KG provides the M258KG6AE onboard and extension connectors (JP3, JP4, JP5
and JP6). Figure 3-3 shows the M258KG6AE extension connectors.
JP3
Pin1 ~ Pin32
JP6
Pin97 ~ Pin128
JP5 Pin33 ~ Pin64
JP4 Pin65 ~ Pin96
Figure 3-3 M258KG6AE Extension Connectors

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Header
M258KG6AE
Pin No.
Function
JP3
JP3.1
1
PB.5/EADC0_CH5/ACMP1_N/LCD_COM0/I2C0_SCL/SPI1_MISO/USCI1_CTL0/SC0_CLK/UART2
_TXD/TM0/INT0
JP3.2
2
PB.4/EADC0_CH4/ACMP1_P1/LCD_COM1/I2C0_SDA/SPI1_MOSI/USCI1_CTL1/SC0_DAT/UART
2_RXD/TM1/INT1
JP3.3
3
PB.3/EADC0_CH3/ACMP0_N/I2C1_SCL/LCD_COM2/UART1_TXD/SPI1_CLK/USCI1_DAT1/SC0_
RST/TM2/INT2
JP3.4
4
PB.2/EADC0_CH2/ACMP0_P1/I2C1_SDA/LCD_COM3/UART1_RXD/SPI1_SS/USCI1_DAT0/SC0_
PWR/TM3/INT3
JP3.5
5
PC.12/UART0_TXD/I2C0_SCL/SC0_nCD/ACMP0_O
JP3.6
6
PC.11/UART0_RXD/I2C0_SDA/ACMP1_O
JP3.7
7
PC.10/LCD_SEG3/UART3_TXD
JP3.8
8
PC.9/LCD_SEG2/UART3_RXD
JP3.9
9
PB.1/EADC0_CH1/LCD_SEG1/SPI1_I2SMCLK/UART2_TXD/I2C1_SCL
JP3.10
10
PB.0/EADC0_CH0/LCD_SEG0/UART2_RXD/SPI0_I2SMCLK/I2C1_SDA
JP3.11
11
VSS
JP3.12
12
VDD
JP3.13
13
PA.11/ACMP0_P0/USCI0_CLK/BPWM0_CH0/TM0_EXT/DAC1_ST
JP3.14
14
PA.10/ACMP1_P0/USCI0_DAT0/BPWM0_CH1/TM1_EXT/DAC0_ST
JP3.15
15
PA.9/USCI0_DAT1/UART1_TXD/BPWM0_CH2/TM2_EXT
JP3.16
16
PA.8/USCI0_CTL1/UART1_RXD/BPWM0_CH3/TM3_EXT/INT4
JP3.17
17
VLCD
JP3.18
18
PD.12/UART2_RXD/TK_SE/CLKO/EADC0_ST/INT5
JP3.19
19
PD.11/UART1_TXD/LCD_SEG43/LCD_COM4
JP3.20
20
PD.10/UART1_RXD/LCD_SEG42/LCD_COM5
JP3.21
21
NC
JP3.22
22
NC
JP3.23
23
NC
JP3.24
24
NC
JP3.25
25
NC
JP3.26
26
NC
JP3.27
27
NC
JP3.28
28
PF.7/SC0_DAT/SPI0_MISO
JP3.29
29
PF.6/SC0_CLK/SPI0_MOSI
JP3.30
30
VBAT
JP3.31
31
PF.5/UART2_RXD/UART2_nCTS/BPWM0_CH4/X32_IN/EADC0_ST
JP3.32
32
PF.4/UART2_TXD/UART2_nRTS/BPWM0_CH5/X32_OUT

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Header
M258KG6AE
Pin No.
Function
JP5
JP5.1
33
NC
JP5.2
34
NC
JP5.3
35
NC
JP5.4
36
NC
JP5.5
37
PF.3/UART0_TXD/I2C0_SCL/XT1_IN/BPWM1_CH0
JP5.6
38
PF.2/UART0_RXD/I2C0_SDA/XT1_OUT/BPWM1_CH1
JP5.7
39
NC
JP5.8
40
NC
JP5.9
41
PE.8/LCD_SEG20/LCD_COM0/USCI1_CTL1
JP5.10
42
PE.9/LCD_SEG19/LCD_COM1/USCI1_CTL0/UART2_RXD
JP5.11
43
PE.10/LCD_SEG18/LCD_COM2/USCI1_DAT0/UART3_TXD
JP5.12
44
PE.11/LCD_SEG17/LCD_COM3/USCI1_DAT1/UART3_RXD/UART1_nCTS
JP5.13
45
PE.12/USCI1_CLK/UART1_nRTS
JP5.14
46
PE.13/I2C0_SCL/LCD_SEG41/LCD_COM6/UART1_TXD/BPWM1_CH5
JP5.15
47
PC.8/I2C0_SDA/LCD_SEG40/LCD_COM7/UART1_RXD/BPWM1_CH4
JP5.16
48
PC.7/SPI1_MISO/LCD_SEG39/TK_TK17/UART0_nCTS/I2C1_SMBAL/BPWM1_CH0/TM0/INT3
JP5.17
49
PC.6/SPI1_MOSI/LCD_SEG38/TK_TK18/UART0_nRTS/I2C1_SMBSUS/BPWM1_CH1/TM1/INT2
JP5.18
50
PA.7/SPI1_CLK/LCD_SEG37/TK_TK19/UART0_TXD/I2C1_SCL/BPWM1_CH2/ACMP0_WLAT/TM
2/INT1
JP5.19
51
PA.6/SPI1_SS/LCD_SEG36/TK_TK20/UART0_RXD/I2C1_SDA/BPWM1_CH3/ACMP1_WLAT/TM3/
INT0
JP5.20
52
VSS
JP5.21
53
VDD
JP5.22
54
PD.15/TK_TK0/TM3/INT1
JP5.23
55
PA.5/SPI1_I2SMCLK/TK_TK1/UART0_nCTS/UART0_TXD/I2C0_SCL/BPWM0_CH5
JP5.24
56
PA.4/SPI0_I2SMCLK/TK_TK2/SC0_nCD/UART0_nRTS/UART0_RXD/I2C0_SDA/BPWM0_CH4
JP5.25
57
PA.3/SPI0_SS/TK_TK3/SC0_PWR/I2C0_SMBAL/UART1_TXD/I2C1_SCL/BPWM0_CH3/CLKO
JP5.26
58
PA.2/SPI0_CLK/TK_TK4/SC0_RST/I2C0_SMBSUS/UART1_RXD/I2C1_SDA/BPWM0_CH2
JP5.27
59
PA.1/SPI0_MISO/TK_TK5/SC0_DAT/UART0_TXD/UART1_nCTS/BPWM0_CH1/DAC1_ST
JP5.28
60
PA.0/SPI0_MOSI/TK_TK6/SC0_CLK/UART0_RXD/UART1_nRTS/BPWM0_CH0/DAC0_ST
JP5.29
61
PF.15/LCD_SEG35/TK_TK7/TM2/CLKO/INT4
JP5.30
62
PE.14/UART2_TXD/LCD_SEG34/TK_TK8
JP5.31
63
PE.15/UART2_RXD/TK_TK21
JP5.32
64
nRESET
JP4
JP4.1
65
PF.0/UART1_TXD/I2C1_SCL/UART0_TXD/BPWM1_CH0/ICE_DAT
JP4.2
66
PF.1/UART1_RXD/I2C1_SDA/UART0_RXD/BPWM1_CH1/ICE_CLK

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Header
M258KG6AE
Pin No.
Function
JP4.3
67
PD.9/UART2_nCTS/LCD_SEG33/TK_TK22
JP4.4
68
PD.8/UART2_nRTS/LCD_SEG32/TK_TK23
JP4.5
69
PC.5/LCD_SEG31/LCD_COM4/TK_TK9/UART2_TXD/I2C1_SCL
JP4.6
70
PC.4/LCD_SEG30/LCD_COM5/TK_TK10/SPI1_I2SMCLK/UART2_RXD/I2C1_SDA
JP4.7
71
PC.3/LCD_SEG29/LCD_COM6/TK_TK11/SPI1_MISO/UART2_nRTS/I2C0_SMBAL/UART3_TXD
JP4.8
72
PC.2/LCD_SEG28/LCD_COM7/TK_TK12/SPI1_MOSI/UART2_nCTS/I2C0_SMBSUS/UART3_RXD
JP4.9
73
PC.1/LCD_SEG27/LCD_COM2/TK_TK24/SPI1_CLK/UART2_TXD/I2C0_SCL/ACMP0_O
JP4.10
74
PC.0/LCD_SEG26/LCD_COM3/TK_TK25/SPI1_SS/UART2_RXD/I2C0_SDA/ACMP1_O
JP4.11
75
VSS
JP4.12
76
VDD
JP4.13
77
NC
JP4.14
78
NC
JP4.15
79
NC
JP4.16
80
NC
JP4.17
81
NC
JP4.18
82
NC
JP4.19
83
NC
JP4.20
84
PD.7/UART1_TXD/I2C0_SCL/USCI1_CLK/TK_TK13/SPI1_MISO
JP4.21
85
PD.6/UART1_RXD/I2C0_SDA/USCI1_DAT1/TK_TK14/SPI1_MOSI
JP4.22
86
PD.5/I2C1_SCL/USCI1_DAT0/TK_TK15/SPI1_CLK
JP4.23
87
PD.4/USCI0_CTL0/I2C1_SDA/USCI1_CTL1/TK_TK16/SPI1_SS
JP4.24
88
PD.3/USCI0_CTL1/SPI0_SS/LCD_SEG25/USCI1_CTL0/TK_TK13/UART0_TXD/UART3_nRTS
JP4.25
89
PD.2/USCI0_DAT1/SPI0_CLK/LCD_SEG24/TK_TK14/UART0_RXD/UART3_nCTS
JP4.26
90
PD.1/USCI0_DAT0/SPI0_MISO/LCD_SEG23/TK_TK15/UART3_TXD
JP4.27
91
PD.0/USCI0_CLK/SPI0_MOSI/LCD_SEG22/TK_TK16/UART3_RXD/TM2
JP4.28
92
PD.13/SPI1_I2SMCLK/SPI0_I2SMCLK/LCD_SEG21
JP4.29
93
USB_VBUS
JP4.30
94
USB_D-
JP4.31
95
USB_D+
JP4.32
96
USB_VDD33_CAP
JP6
JP6.1
97
PE.7/LCD_SEG16/BPWM0_CH5
JP6.2
98
PE.6/LCD_SEG15/SC0_nCD/USCI0_CTL0/BPWM0_CH4
JP6.3
99
PE.5/SC0_PWR/USCI0_CTL1/BPWM0_CH3
JP6.4
100
PE.4/SC0_RST/USCI0_DAT1/BPWM0_CH2
JP6.5
101
PE.3/SC0_DAT/USCI0_DAT0/BPWM0_CH1

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Header
M258KG6AE
Pin No.
Function
JP6.6
102
PE.2/SC0_CLK/USCI0_CLK/BPWM0_CH0
JP6.7
103
NC
JP6.8
104
NC
JP6.9
105
PE.1/SPI0_MISO0/UART3_TXD/I2C1_SCL
JP6.10
106
PE.0/SPI1_MOSI/UART3_RXD/I2C1_SDA
JP6.11
107
NC
JP6.12
108
NC
JP6.13
109
NC
JP6.14
110
NC
JP6.15
111
NC
JP6.16
112
VSS
JP6.17
113
LDO_CAP
JP6.18
114
VDD
JP6.19
115
PC.14/SPI0_I2SMCLK/USCI0_CTL0/LCD_SEG14/LCD_COM0/TM1
JP6.20
116
PB.15/EADC0_CH15/SPI0_SS/USCI0_CTL1/UART0_nCTS/UART3_TXD/LCD_SEG13/LCD_COM
1/TM0_EXT
JP6.21
117
PB.14/EADC0_CH14/SPI0_CLK/USCI0_DAT1/UART0_nRTS/UART3_RXD/LCD_SEG12/TM1_EXT
/CLKO/TK_SE
JP6.22
118
PB.13/EADC0_CH13/DAC1_OUT/ACMP0_P3/ACMP1_P3/SPI0_MISO/USCI0_DAT0/UART0_TXD/
UART3_nRTS/LCD_SEG11/TM2_EXT
JP6.23
119
PB.12/EADC0_CH12/DAC0_OUT/ACMP0_P2/ACMP1_P2/SPI0_MOSI/USCI0_CLK/UART0_RXD/
UART3_nCTS/LCD_SEG10/TM3_EXT
JP6.24
120
AVDD
JP6.25
121
VREF
JP6.26
122
AVSS
JP6.27
123
PB.11/EADC0_CH11/UART0_nCTS/I2C1_SCL/LCD_SEG9/SPI0_I2SMCLK/BPWM1_CH0
JP6.28
124
PB.10/EADC0_CH10/USCI1_CTL0/UART0_nRTS/I2C1_SDA/LCD_SEG8/LCD_V1/BPWM1_CH1
JP6.29
125
PB.9/EADC0_CH9/USCI1_CTL1/UART0_TXD/UART1_nCTS/I2C1_SMBAL/LCD_SEG7/LCD_V2/B
PWM1_CH2
JP6.30
126
PB.8/EADC0_CH8/USCI1_CLK/UART0_RXD/UART1_nRTS/I2C1_SMBSUS/LCD_SEG6/LCD_V3/
BPWM1_CH3
JP6.31
127
PB.7/EADC0_CH7/USCI1_DAT0/UART1_TXD/LCD_SEG5/BPWM1_CH4/INT5/ACMP0_O
JP6.32
128
PB.6/EADC0_CH6/USCI1_DAT1/UART1_RXD/LCD_SEG4/BPWM1_CH5/INT4/ACMP1_O
Table 3-2 M258KG6AE Full-pin Extension Connectors and GPIO Function List

NuMaker-M258KG
Jan. 15, 2022 Page 16 of 54 Rev 1.00
NUMAKER-M258KG USER MANUAL
Maker Nu-mbed NUC472 User Manual
3.3.2 NuMaker-TNLCDSub_M258K Compatible Extension Connectors
Table 3-3 shows the NuMaker-TNLCDSub_M258K compatible extension connectors.
Header
NuMaker-M258KG
NuMaker-TNLCDSUB_M258K
Pin No.
Function
Function
JP3
JP3.1
1
LCD_COM0
LCD_COM0
JP3.2
2
LCD_COM1
LCD_COM1
JP3.3
3
LCD_COM2
LCD_COM2
JP3.4
4
LCD_COM3
LCD_COM3
JP3.7
7
LCD_SEG3
LCD_SEG3
JP3.8
8
LCD_SEG2
LCD_SEG2
JP3.9
9
LCD_SEG1
LCD_SEG1
JP3.10
10
LCD_SEG0
LCD_SEG0
JP3.19
19
LCD_COM4
LCD_COM4
JP3.20
20
LCD_COM5
LCD_COM5
JP5
JP5.9
41
LCD_SEG20
LCD_SEG20
JP5.10
42
LCD_SEG19
LCD_SEG19
JP5.11
43
LCD_SEG18
LCD_SEG18
JP5.12
44
LCD_SEG17
LCD_SEG17
JP5.14
46
LCD_COM6
LCD_COM6
JP5.15
47
LCD_COM7
LCD_COM7
JP5.16
48
LCD_SEG39
LCD_SEG39
JP5.17
49
LCD_SEG38
LCD_SEG38
JP5.18
50
LCD_SEG37
LCD_SEG37
JP5.19
51
LCD_SEG36
LCD_SEG36
JP5.29
61
LCD_SEG35
LCD_SEG35
JP5.30
62
LCD_SEG34
LCD_SEG34
JP4
JP4.3
67
LCD_SEG33
LCD_SEG33
JP4.4
68
LCD_SEG32
LCD_SEG32
JP4.5
69
LCD_SEG31
LCD_SEG31
JP4.6
70
LCD_SEG30
LCD_SEG30
JP4.7
71
LCD_SEG29
LCD_SEG29
JP4.8
72
LCD_SEG28
LCD_SEG28

NuMaker-M258KG
Jan. 15, 2022 Page 17 of 54 Rev 1.00
NUMAKER-M258KG USER MANUAL
Maker Nu-mbed NUC472 User Manual
JP4.9
73
LCD_SEG27
LCD_SEG27
JP4.10
74
LCD_SEG26
LCD_SEG26
JP4.24
88
LCD_SEG25
LCD_SEG25
JP4.25
89
LCD_SEG24
LCD_SEG24
JP4.26
90
LCD_SEG23
LCD_SEG23
JP4.27
91
LCD_SEG22
LCD_SEG22
JP4.28
92
LCD_SEG21
LCD_SEG21
JP6
JP6.1
97
LCD_SEG16
LCD_SEG16
JP6.2
98
LCD_SEG15
LCD_SEG15
JP6.19
115
LCD_SEG14
LCD_SEG14
JP6.20
116
LCD_SEG13
LCD_SEG13
JP6.21
117
LCD_SEG12
LCD_SEG12
JP6.22
118
LCD_SEG11
LCD_SEG11
JP6.23
119
LCD_SEG10
LCD_SEG10
JP6.27
123
LCD_SEG9
LCD_SEG9
JP6.28
124
LCD_SEG8
LCD_SEG8
JP6.29
125
LCD_SEG7
LCD_SEG7
JP6.30
126
LCD_SEG6
LCD_SEG6
JP6.31
127
LCD_SEG5
LCD_SEG5
JP6.32
128
LCD_SEG4
LCD_SEG4
Table 3-3 NuMaker-TNLCDSub_M258K Extension Connectors and M258KG6AE Mapping GPIO List

NuMaker-M258KG
Jan. 15, 2022 Page 18 of 54 Rev 1.00
NUMAKER-M258KG USER MANUAL
Maker Nu-mbed NUC472 User Manual
3.3.3 Arduino UNO Compatible Extension Connectors
Figure 3-4 shows the Arduino UNO compatible extension connectors.
MISO CLK RESET SS
PA.9 PA.11 nRESET PA.8
USCI0_DAT1 USCI0_CLK
5V MOSI GND -
VDD PA.10 VSS PB.15
USCI0_DAT0
BPWM0_CH5 PA.5 D8
BPWM0_CH4 PA.4 D9
SPI0_SS BPWM0_CH3 PA.3 D10
SPI0_MOSI BPWM0_CH0 PA.0 D11
SPI0_MISO BPWM0_CH1 PA.1 D12
SPI0_CLK BPWM0_CH2 PA.2 D13
VSS VSS
VREF VREF
I2C0_SDA PC.0 SDA
I2C0_SCL PC.1 SCL
UART1_RXD PB.2 D0
UART1_TXD PB.3 D1
I2C1_SDA PC.4 D2
I2C1_SCL PC.5 D3
PC.3 D4
PC.2 D5
TM2 PA.7 D6
TM3 PA.6 D7
VIN
VSS
VSS
5V
3V
RST
IOREF VDD
NC
A5 PB.1 EADC0_CH1 I2C1_SCL UART2_TXD
A4 PB.0 EADC0_CH0 I2C1_SDA UART2_RXD
A3 PB.4 EADC0_CH4
A2 PB.5 EADC0_CH5
A1 PB.6 EADC0_CH6
A0 PB.7 EADC0_CH7
Figure 3-4 Arduino UNO Compatible Extension Connectors

NuMaker-M258KG
Jan. 15, 2022 Page 19 of 54 Rev 1.00
NUMAKER-M258KG USER MANUAL
Maker Nu-mbed NUC472 User Manual
Header
NuMaker-M258KG
Header
NuMaker-M258KG
Compatible to
Arduino UNO
GPIO Pin of M258
Compatible to
Arduino UNO
GPIO Pin of M258
NU3
NU3.1
D0
PB.2
NU2
NU2.6
A5
PB.1
NU3.2
D1
PB.3
NU2.5
A4
PB.0
NU3.3
D2
PC.4
NU2.4
A3
PB.4
NU3.4
D3
PC.5
NU2.3
A2
PB.5
NU3.5
D4
PC.3
NU2.2
A1
PB.6
NU3.6
D5
PC.2
NU2.1
A0
PB.7
NU3.7
D6
PA.7
NU1
NU1.8
VIN
-
NU3.8
D7
PA.6
NU1.7
VSS
NU4
NU4.1
D8
PA.5
NU1.6
VSS
NU4.2
D9
PA.4
NU1.5
5V
NU4.3
D10
PA.3
NU1.4
3V
NU4.4
D11
PA.0
NU1.3
RST
nRESET
NU4.5
D12
PA.1
NU1.2
VDD
VDD
NU4.6
D13
PA.2
NU1.1
NC
-
NU4.7
VSS
VSS
NU4.8
VREF
VREF
NU4.9
SDA
PC.0
NU4.10
SCL
PC.1
Table 3-4 Arduino UNO Extension Connectors and M258KG6AE Mapping GPIO List

NuMaker-M258KG
Jan. 15, 2022 Page 20 of 54 Rev 1.00
NUMAKER-M258KG USER MANUAL
Maker Nu-mbed NUC472 User Manual
3.4 Power Supply Configuration
The NuMaker-M258KG 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-
M258KG.
3.4.1 VIN Power Source
Table 3-5 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 3-5 Vin Power Source
3.4.2 5 V Power Sources
Table 3-6 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
M258KG target board and Nu-Link2-Me.
J2
USB_VBUS
USB connector on NuMaker-M258KG supplies 5 V
power from PC to M258KG 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 3-6 5 V Power Sources