Nuvoton ARM Cortex-M NuMicro NUC472 Series User manual

MuMaker-PFM-NUC472
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NUMAKER-PFM-NUC472 USER MANUAL
Maker Nu-mbed NUC472 User Manual
ARM®Cortex®-M
32-bit Microcontroller
MuMaker-PFM-NUC472
User Manual
NuMicro®NUC472 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 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
Introduction to ARM®mbed™......................................................................... 61.1
Introduction to NuMaker-PFM-NUC472 Board.................................................... 61.2
NUC472 Series MCU Features...................................................................... 71.3
NuMaker-PFM-NUC472 Board Features .......................................................... 81.4
2NuMaker-PFM-NUC472 Board Overview.................................................... 10
Front View..............................................................................................10
2.1
Rear View..............................................................................................112.2
Arduino UNO Compatible Interface................................................................122.3
System Configuration ................................................................................142.4
2.4.1 Power Settings ................................................................................................ 14
2.4.2 USB Connectors .............................................................................................. 14
2.4.3 Ethernet Connectors ......................................................................................... 14
2.4.4 Arduino UNO Compatible Interface Connectors......................................................... 14
2.4.5 Buttons ......................................................................................................... 15
2.4.6 Power Connectors............................................................................................ 15
PCB Placement .......................................................................................162.5
3Getting Started.................................................................................... 17
Connect to the PC Host..............................................................................173.1
Confirm Your PC can Access the Internet........................................................183.2
Login the ARM®mbed™..............................................................................193.3
Open Mbed Compiler ................................................................................213.4
Compile Program .....................................................................................213.5
Download Program...................................................................................21
3.6
Run Program ..........................................................................................213.7
Debug Program .......................................................................................213.8
4NuMaker-PFM-NUC472 Schematics ......................................................... 22
NUC472 Series MCU ................................................................................224.1
Nu-Link-Me ............................................................................................234.2
Power Supply..........................................................................................244.3
Arduino UNO Compatible Interface................................................................254.4
Reset....................................................................................................254.5
Crystal ..................................................................................................264.6

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Battery..................................................................................................264.7
LED .....................................................................................................274.8
RGB LED...............................................................................................274.9
Push Buttons ..........................................................................................284.10
Buzzer ..................................................................................................284.11
RS232 ..................................................................................................294.12
MicroSD Card .........................................................................................294.13
USB OTG and Host ..................................................................................304.14
Ethernet ................................................................................................314.15
RS-485 .................................................................................................324.16
CAN.....................................................................................................324.17
24-bit Stereo Audio Codec ..........................................................................334.18
SRAM...................................................................................................344.19
MPU6500 ..............................................................................................354.20
5REVISION HISTORY............................................................................ 36

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List of Figures
Figure 1-1 NuMaker-PFM-NUC472 Board....................................................................................... 7
Figure 2-1 Front View of NuMaker-PFM-NUC472 Board .............................................................. 10
Figure 2-2 Rear View of NuMaker-PFM-NUC472 Board............................................................... 11
Figure 2-3 Arduino UNO Compatible Interface..............................................................................12
Figure 2-4 Front Placement ........................................................................................................... 16
Figure 2-5 Back Placement............................................................................................................16
Figure 3-1 Connect to PC Host...................................................................................................... 17
Figure 3-2 Nu-Link in “Devices and Printers” and “Device Manager” ............................................18
Figure 3-3 “MBED” Disk ................................................................................................................. 18
Figure 3-4 Contents in “MBED” Disk.............................................................................................. 19
Figure 3-5 Login Web-page in ARM®mbed™................................................................................ 19
Figure 3-6 Signup to Create A New Account.................................................................................20
Figure 3-7 Log in ARM®mbed™on NUC472.................................................................................20
Figure 3-8 ARM®mbed™Compiler Based on NUC472.................................................................21
Figure 4-1 NUC472 Series Pin Assignment...................................................................................22
Figure 4-2 Nu-Link-Me Circuit........................................................................................................ 23
Figure 4-3 Power Circuit and Configurations.................................................................................24
Figure 4-4 Arduino UNO Compatible Interface..............................................................................25
Figure 4-5 Reset Circuit .................................................................................................................25
Figure 4-6 External Crystal Circuit.................................................................................................26
Figure 4-7 Battery Circuit ............................................................................................................... 26
Figure 4-8 Power LED and IO LED Circuit ....................................................................................27
Figure 4-9 RGB LED Circuit...........................................................................................................27
Figure 4-10 Push Buttons Circuit................................................................................................... 28
Figure 4-11 Buzzer Circuit ............................................................................................................. 28
Figure 4-12 RS232 Circuit..............................................................................................................29
Figure 4-13 MicroSD Card Circuit..................................................................................................29
Figure 4-14 USB OTG and Host Circuit......................................................................................... 30
Figure 4-15 Ethernet Circuit........................................................................................................... 31
Figure 4-16 RS-485 Circuit and Connectors..................................................................................32
Figure 4-17 CAN Circuit and Connectors ......................................................................................32
Figure 4-18 Audio Codec Circuit....................................................................................................33
Figure 4-19 External SRAM Memory Circuit.................................................................................. 34
Figure 4-20 MPU6500 Circuit......................................................................................................... 35

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List of Tables
Table 2-1 Arduino UNO Interface Mapping with NUC472 GPIO ................................................... 13
Table 2-2 Power Mode Settings.....................................................................................................14

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1 OVERVIEW
This user manual is aimed to give users a fast introduction to the use of ARM®mbed™and NuMaker-
PFM-NUC472 board.
Introduction to ARM®mbed™1.1
The ARM®mbed™IoT Device Platform provides the operating system, cloud services, tools and
developer ecosystem to make the creation and deployment of commercial, standards-based IoT
solutions possible.
The ARM®mbed™allows IoT devices to collaborate and communicate with each other on the basis of
transparency - otherwise each of the devices will not be able to talk to each other or to the cloud. For
more detailed information about ARM®mbed™, user can visit the related ARM®mbed™websites as
the follows:
ARM®mbed™homepage: www.mbed.com/en/
Software homepage: developer.mbed.org/handbook/Homepage
Official C/C++ SDK: developer.mbed.org/users/mbed_official/code/mbed/
Introduction to NuMaker-PFM-NUC472 Board1.2
The NuMaker-PFM-NUC472 is a development board based on a Cortex®-M4 microcontroller (MCU) –
NUC472 series which has very rich peripherals.
This board is provided by Nuvoton and created specially to support the ARM®mbed™IoT Device
Platform, and let user easily to develop the IoT application program on this board. The NuMaker-PFM-
NUC472 also provides user many useful and powerful learning materials for how to develop and verify
the application programs through the peripherals and interfaces on MCU and this board.
Furthermore, this board also provides an Arduino UNO compatible interface for user to develop the
specific function with any of Arduino modules or kits. Regarding to the Arduino, user can link directly to
the Wikipedia website: en.wikipedia.org/wiki/Arduino to get more detailed introductions.
The NuMaker-PFM-NUC472 board consists of NUC472 Platform and Nu-Link-Me ICE Bridge. Figure
1-1 shows the NuMaker-PFM-NUC472 board.

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NUC472 Platform
Nu-Link-Me
ICE Bridge
Figure 1-1 NuMaker-PFM-NUC472 Board
The left portion of this board is the NUC472 Platform that includes the target chip NUC472 MCU which
embedded Cortex®-M4 core with DSP extensions and a Floating Point Unit (FPU) and the other
related on-board application parts and connectors.
The right portion of this board is a Nu-Link-Me ICE Bridge based on the SWD (Serial Wire Debug)
interface connected with the target chip, allowing user to program the application code to the flash of
target chip through the USB port from PC Host.
For more information on the NuMaker-PFM-NUC472 board for the ARM®mbed™Device Platform,
please visit the ARM®mbed™hardware board website:
www.mbed.com/en/development/hardware/boards/nuvotontechnology/nuvoton_nuc472/
NUC472 Series MCU Features1.3
NUC472JI8AE in LQFP144 package
ARM®Cortex®-M4 core running up to 84 MHz with DSP extensions and FPU (Floating
Point Unit)
Build-in LDO for wide operating voltage ranged from 2.5 V to 5.5 V
512 Kbytes Flash
64 Kbytes SRAM
External Bus Interface (EBI)
GPIO (114)
Peripheral DMA (PDMA)
Timer (4)
PWM (16)
WDT and WWDT

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RTC
UART (6)
Smart Card (ISO-7816-3) Host Interface (6)
PS/2 Device
I2C (5)
SPI (4)
I2S (2)
USB OTG / FS Host / HS Device
CAN (2)
Ethernet MAC
SD Host
Cryptographic Accelerator
CRC
ADC (2 x 16-ch)
Comparator (3)
OP (2)
For more detailed information about the NuMicro®Family NUC472 series, please directly visit Nuvoton
website:
Nuvoton ARM®Cortex®-M4 MCUs: www.nuvoton.com/hq/products/microcontrollers/arm-cortex-m4-
mcus/?__locale=en
NUC472 Series Datasheet (DS): www.nuvoton.com/hq/products/microcontrollers/arm-cortex-m4-
mcus/Data-Sheet/?__locale=en&resourcePage=Y
NUC472 Series Technical Reference Manual (TRM):
www.nuvoton.com/hq/products/microcontrollers/arm-cortex-m4-mcus/Technical-Reference-
Manual/?__locale=en&resourcePage=Y
NuMaker-PFM-NUC472 Board Features1.4
On board Nu-Link-Me ICE Bridge (Mass storage as USB Disk drive) for drag and drop
programming
Arduino UNO compatible interface
On board 1 Mbytes SRAM
Audio codec (NAU8822LYG) with Microphone, Line In and Headphone Out
Ethernet for network application
USB OTG and Host
MicroSD Card slot for T-Flash
3-axis Accelerometer and 3-axis Gyroscope (MPU6500)

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RS232 transceiver with UART COM port
RS485 transceiver with connectors
CAN transceiver with connectors
Two push buttons
Buzzer
RGB LED
Battery for RTC

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2 NUMAKER-PFM-NUC472 BOARD OVERVIEW
Front View2.1
Figure 2-1 shows the main components and connectors from the front side of NuMaker-PFM-NUC472
board.
The following lists components and connectors from the front view:
Target Chip: NUC472JI8AE (U1)
Nu-Link-Me ICE Bridge: ICE Controller NUC12SRE3DE (ICEU2), USB Mini-B connector
(ICEJ1) to PC Host
Memory: 1Mbytes SRAM LY61L51216AML (U7)
Audio: Audio Codec NAU8822LYG (U2), Microphone (MIC1), Aux Line In (J1),
Headphone (J2)
Arduino UNO compatible interface connectors (NU1, NU2, NU3, NU4 and NU5)
USB: USB OTG Micro-AB connector (CON2) and USB Host Type-A connector (U14)
3-axis Accelerometer and 3-axis Gyroscope: MPU6500 (U6)
Ethernet Transceivers: IP101GA (U4)
RS232 Transceivers: 75C3232E (U13)
Push buttons (SW1, SW2)
Buzzer (BZ1)
RGB LED (RGBLED1)
Battery (BT1)
Reset Key
ICE Controller
USB ICE
Connector
UART
COM Port
RS485 Connector
CAN Connector
NAU8822 Codec
MIC
Headphone
Aux
Line In
RJ-45
Connector
Ethernet PHY
Buzzer Push Buttons
NUC472JI8AE USB Host
USB OTG
Battery
5V In
SRAM
MPU6500
RGB LED
RS232 Transceiver
Figure 2-1 Front View of NuMaker-PFM-NUC472 Board

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Rear View2.2
Figure 2-2 shows the main components and connectors from the rear side of NuMaker-PFM-NUC472
board.
The following lists components and connectors from the rear view:
MicroSD Card Slot: T-Flash slot (U12)
RS485 Transceivers: SP585E (UT1)
CAN Transceivers: SN65HVD230 (U10)
D-type Latches: HC373 (U8 and U9)
MicroSD Card
RS485 Transceiver
CAN Transceiver
HC373
Figure 2-2 Rear View of NuMaker-PFM-NUC472 Board

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Arduino UNO Compatible Interface2.3
Figure 2-3 shows the Arduino UNO compatible interface.
D9
D10
D8
D11
D12
D13
GND
Vref
PD6
PD3
PD7
PD2
PD1
PD0
D14
D15
PD12
PD10
GPIO
I2C1_SDA
I2C1_SCL
D1
D2
D0
D3
D4
D5
D6
D7
PG2
PF9
PG1
PF10
PC10
PC11
PA10
PA9
PWM
RX0
TX0
A6
A5
A7
A4
A3
A2
A1
A0
PE13
PE12
PE14
PE5
PE4
PE3
PE2
PE1
ADC
GND
GND
VIN
+5V
+3V3
NRST
+3V3
NC
GND
SPI_MOSI
GPIO
+3V3
PF0
PF15
SPI_CLK
NRST
SPI_MISO
SPI_SS
PD14
PD15
PD13
Close: MSD programmer
Open: ICE Debug
MASS
Figure 2-3 Arduino UNO Compatible Interface

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Header
NuMaker-PFM-NUC472
Header
NuMaker-PFM-NUC472
Compatible to
Arduino UNO
GPIO Pin of
NUC472
Compatible to
Arduino UNO
GPIO Pin of
NUC472
N
U
1
NU1.1
NC
NC
N
U
4
NU4.1
ADC0
PE.1
NU1.2
VDD
VCC
NU4.2
ADC1
PE.2
NU1.3
MCU_RESET
RESET
NU4.3
ADC2
PE.3
NU1.4
3VCC
3VCC
NU4.4
ADC3
PE.4
NU1.5
5VCC
5VCC
NU4.5
ADC4
PE.5
NU1.6
VSS
GND
NU4.6
ADC5
PE.12
NU1.7
VSS
GND
NU4.7
ADC6
PE.13
NU1.8
VIN
VIN
NU4.8
ADC7
PE.14
N
U
2
NU2.1
PWM6
PD.7
N
U
5
NU5.1
UART_RX0
PG.1
NU2.2
PWM7
PD.6
NU5.2
UART_TX0
PG.2
NU2.3
PWM8
PD.3
NU5.3
PWM0
PF.9
NU2.4
PWM9
PD.2
NU5.4
PWM1
PF.10
NU2.5
PWM10
PD.1
NU5.5
PWM2
PC.10
NU2.6
PWM11
PD.0
NU5.6
PWM3
PC.11
NU2.7
VSS
GND
NU5.7
PWM4
PA.10
NU2.8
VREF
VREF
NU5.8
PWM5
PA.9
NU2.9
I2C1_DAT
PD.12
NU2.10
I2C1_SCL
PD.10
N
U
3
NU3.1
SPI0_MISO
PD.15
NU3.2
VCC
VCC
NU3.3
SPI0_CLK
PD.14
NU3.4
SPI0_MOSI
PF.0
NU3.5
MCU_RESET
RESET
NU3.6
VSS
GND
NU3.7
SPI0_SS
PD.13
NU3.8
GPIO
PF.15
Table 2-1 Arduino UNO Interface Mapping with NUC472 GPIO

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System Configuration2.4 2.4.1 Power Settings
ICEJ1: USB Mini-B connector in Nu-Link-Me to program code and supplies 5V power from
PC Host.
CON2: USB OTG Micro-AB connector in NuMaker-PFM-NUC472 to supply 5V power from
PC Host when this USB is a device that be decided by the ID pin of OTG cable and this ID
pin is low.
CON4: 5V_IN Power JACK connector in NuMaker-PFM-NUC472.
JP8, JP10: VDD5V voltage connectors in NuMaker-PFM-NUC472.
X: Unused.
Power
Model
ICEJ1
USB Port
(Mini)
CON2
USB Port
(Micro)
CON4
DC JACK
(5V)
JP8/JP10
VDD5V
MCU
Voltage
Comment
Model 1
Connected
to PC
X
X
DC 5V
Output
DC 3.3 V
ICEJ1 supplies the power
from PC.
Model 2
X
Connected
to PC
(this USB
port is
device)
X
DC 5V
Output
DC 3.3 V
CON2 supplies the power
from PC.
Note: JP10 should be
shorted 0R, and both pin2
and pin4 of JP8 should be
shorted 0R too.
Model 3
X
X
Connected
to DC JACK
DC 5V
Output
DC 3.3V
Note: JP10 should be
shorted 0R, and both pin2
and pin4 of JP8 should be
shorted 0R too.
Table 2-2 Power Mode Settings
2.4.2 USB Connectors
ICEJ1: USB Mini-B connector (ICE) in Nu-Link-Me that connects to a PC’s USB Host port
to program code and supply power.
CON2: USB Micro-AB connector (OTG) in NuMaker-PFM-NUC472 for USB OTG
application use.
U14: USB Type-A connector (Host) in NuMaker-PFM-NUC472 for USB Host application
use.
2.4.3 Ethernet Connectors
CON3: Ethernet connector (RJ-45) in NuMaker-PFM-NUC472 for application use.
2.4.4 Arduino UNO Compatible Interface Connectors
NU1, NU2, NU3, NU4 and NU5: Arduino UNO compatible pins in the NuMaker-PFM-
NUC472 board.

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2.4.5 Buttons
SW1, SW2: Only for application use.
SW4: Reset button to reset the target chip in NuMaker-PFM-NUC472.
2.4.6 Power Connectors
VCC: VCC connector in the NuMaker-PFM-NUC472 board.
GND: GND connector in the NuMaker-PFM-NUC472 board.

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PCB Placement2.5
Figure 2-4 and Figure 2-5 show the front and back placement of NuMaker-PFM-NUC472 board.
Figure 2-4 Front Placement
Figure 2-5 Back Placement

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3 GETTING STARTED
This chapter describes the steps of using the NuMaker-PFM-NUC472 board.
Connect to the PC Host3.1
Connect the USB Mini-B port (ICEJ1) in Nu-Link-Me to the PC Host as Figure 3-1. The PC Host will
supply 5V power to this NuMaker-PFM-NUC472 board and recognize this board as USB composite
device named as Nu-Link which has both Mass Storage and Virtual COM (VCOM) Port functions. The
Mass Storage function is easy for user to program the bin file to the flash of target chip and user just
only drags and drops the bin file to this Mass Storage disk to update program. The VCOM port
function is used to print some messages on PC API, like Tera Term, through the standard UART
protocol to help user to debug program.
User can check the device status from the “Devices and Printers”or “Device Manager”in your
“Computer”of OS as shown in Figure 3-2.
After connecting successfully with PC Host, your PC will add-in an extra disk named as “MBED”, as
shown in Figure 3-3.
Figure 3-1 Connect to PC Host

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Figure 3-2 Nu-Link in “Devices and Printers”and “Device Manager”
Figure 3-3 “MBED” Disk
Confirm Your PC can Access the Internet3.2
The ARM®mbed™platform provides free and online compiler for all users. User must firstly confirm
own PC can access the Internet unlimitedly.

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Login the ARM®mbed™3.3
User can double-click the “mbed.htm”in the MBED disk as shown in Figure 3-4 to link or directly link
(developer.mbed.org/account/login) to the ARM®mbed™login web-page as shown in Figure 3-5.
If you have an account created before, please login your account directly. Otherwise, choose the
“Signup”icon to create a new account to register the ARM®mbed™platform as Figure 3-6.
After logging in the ARM®mbed™platform, user will see as the contents as shown in Figure 3-7.
Figure 3-4 Contents in “MBED”Disk
Copy from ARM®
Figure 3-5 Login Web-page in ARM®mbed™

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Copy from ARM®
Figure 3-6 Signup to Create A New Account
Copy from ARM®
Figure 3-7 Log in ARM®mbed™on NUC472