Nuvoton NuMaker Tomato User manual

NuMaker Tomato
Sep. 30, 2016 Page 1of 25 Rev 1.00
NUMAKER TOMATO USER MANUAL
ARM® 926EJ-S
32-bit Microprocessor
NuMaker Tomato User Manual
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.............................................................................................3
2Hardware Features ................................................................................4
2.1 NuMaker Tomato Board Features .................................................................. 4
2.2 NUC976DK62Y Features............................................................................. 5
3Board Extension Interfaces.......................................................................7
4Getting Started with NuMaker Tomato........................................................ 10
4.1 Download Software Package and USB CDC Driver ............................................10
4.2 Install Nuvoton USB CDC Driver...................................................................10
4.3 Copy Software Package to MicroSD Card........................................................11
4.4 Connect and Set Up Hardware.....................................................................11
4.5 Open USB CDC Serial COM Port..................................................................12
5Example of Executing Sample Code.......................................................... 14
6Appendix........................................................................................... 15
6.1 Schematics ............................................................................................15
6.2 Python API.............................................................................................22
6.2.1 I2C (pysmbus) ................................................................................................. 22
6.2.2 SPI (spidev).................................................................................................... 22
6.2.3 GPIO (gpio).................................................................................................... 22
6.2.4 PWM (pwm).................................................................................................... 23
6.2.5 ADC (adc)...................................................................................................... 23
6.2.6 UART(pyserial)................................................................................................ 23
7REVISION HISTORY............................................................................ 24

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1 OVERVIEW
NuMaker Tomato is an open development board. The NuMaker Tomato development platform
enables you to design prototypes for Internet of Things (IoT) devices, Gateway / Router or audio
stream application and Ethernet industrial control, using hardware and an API that are similar to
those offered for Arduino boards.
The platform is based on Nuvoton 300MHz ARM9 SoC which is highly integrated System-on-Chip
(SOC) design, The SoC provides features such as 10/100Mbps Ethernet, high-speed USB 2.0
host/device ports, and built-in 64M Byte DDRII memory .
The NuMaker Tomato uses the NUC976DK62Y as the target microprocessor. Figure 1-1 shows
the NuMaker Tomato board.
Figure 1-1 NuMaker Tomato Board

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NUMAKER TOMATO USER MANUAL
2 HARDWARE FEATURES
2.1 NuMaker Tomato Board Features
MPU: NUC976DK62Y with ARM® ARM926EJ-S™processor core running up to 300 MHz
Built-in 64M Byte DDRII memory
8 MB SPI Flash
USB CDC (Communications Device Class) port
10/100Mbps Ethernet
Stereo Audio Headphone out
Mono Microphone input
1.5W Mono Speaker output
MicroSD card slot up to 32G Byte
USB 2.0 High Speed Host
USB 2.0 High Speed Device
Figure 2-1 NuMaker Tomato Board Features

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2.2 NUC976DK62Y Features
Core
–ARM® ARM926EJ-S™processor core running up to 300 MHz
–Supports 16 KB instruction cache and 16 KB data cache
Embedded SRAM and ROM
–Embedded 64MB DDRII
–Supports up to four booting modes:
USB / eMMC / NAND Flash / SPI Flash
Ethernet MAC Controller
–Supports IEEE Std. 802.3 CSMA/CD protocol
–Supports packet time stamping for IEEE Std. 1588 protocol
–Supports 10 and 100 Mbps operations
–Supports RMII interface to Ethernet physical layer PHY
–Supports Ethernet physical layer PHY management through MDC and MDIO interface
USB 2.0 Controller
–Supports USB Revision 2.0 specification
–Supports one set of USB 2.0 High-Speed (HS) Device/Host with embedded transceiver
–Supports one set of USB 2.0 High-Speed (HS) Host with embedded transceiver
–Supports 2048 Bytes internal SRAM for USB host function and 4096 Bytes internal
SRAM for USB device function
Flash Memory Interface
–Supports NAND Flash interface
–Supports 8-bit data bus width
–Supports SLC and MLC type NAND Flash device
–Supports 512 B, 2 KB, 4 KB and 8 KB page size NAND Flash device
–Supports ECC4, ECC8, ECC12, ECC15 and ECC24 BCH algorithm for ECC code
generation, error detection and error correction
–Supports eMMC Flash interface
I2S Controller
–I2S interface
Supports both mono and stereo
Supports both record and playback
Supports 8-bit, 16-bit, 20-bit and 24-bit data precision
Supports master and slave mode
–PCM interface
Supports 2 slots mode to connect 2 devices
Supports 8-bit, 16-bit, 20-bit and 24-bit data precision
Supports master mode
JPEG Codec
–Supports Baseline Sequential mode JPEG codec function compliant with ISO/IEC
10918-1 international JPEG standard
Crypto Engine
–PRNG
–Supports 64-bit, 128-bit, 192-bit and 256-bit key generation
–DES / 3DES / AES / SHA / HMAC
–Supports both encryption and decryption
Periphery

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–UART/ SPI / I2C / 4-channel PWM / 12-bit ADC / CAN

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3 BOARD EXTENSION INTERFACES
NU1
NU1
Name
Pin 1
GND
Pin 2
VDD3
Pin 3
RESET
Pin 4
VDD3
Pin 5
VIN5
Pin 6
GND
Pin 7
GND
Pin 8
VIN5
NU3
NU3
Name
MPU
Pin
Pin 1
9 (SW3)
GPF10
Pin 2
10
(LED2)
GPD7
Pin 3
ADC7
AIN7
Pin 4
ADC6
AIN6
Pin 5
ADC5
AIN5
Pin 6
ADC4
AIN4
NU2
NU2
Name
MPU Pin
Pin 1
2
GPA10
Pin 2
1
GPA11
Pin 3
PWM0
GPA12
Pin 4
PWM1
GPA13
Pin 5
PWM2
GPA14
Pin 6
PWM3
GPA15
Pin 7
GND
GND
Pin 8
AVDD3
AVDD3 V
Pin 9
SDA
I2C SDA
Pin 10
SCK
I2C SCL

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NU4
NU2
Name
MCU Pin
Pin 1
RX
UART RX
Pin 2
TX
UART TX
Pin 3
8
GPI4
Pin 4
7
GPI3
Pin 5
6
GPB2
Pin 6
5
GPB3
Pin 7
4
GPA8
Pin 8
3
GPA9
NU5
NU6
Name
MCU
Pin
NU6
NU6
MCU
Pin
Name
VIN5
VIN5
Pin 1
Pin 2
VIN5
VIN5
11
GPA0
Pin 3
Pin 4
GPA1
12
13
GPA2
Pin 5
Pin 6
GPA3
14
15
GPA4
Pin 7
Pin 8
GPA5
16
17
GPA6
Pin 9
Pin 10
GPA7
18
19
GPG6
Pin 11
Pin 12
GPG7
20
21
GPG8
Pin 13
Pin 14
GPG9
22
23
GPI7
Pin 15
Pin 16
GPI8
24
25
GPI9
Pin 17
Pin 18
GPI10
26
NU5
Name
MCU Pin
Pin 1
SPICLK
SPI CLK
Pin 2
VDD3
3.3V
Pin 3
MISO
SPI MISO
Pin 4
MOSI
SPI MOSI
Pin 5
SS
SPI CS
Pin 6
GND
GND

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27
GPI11
Pin 19
Pin 20
GPI12
28
29
GPI13
Pin 21
Pin 22
GPI14
30
31
GPI15
Pin 23
Pin 24
GPJ0
32
33
GPJ1
Pin 25
Pin 26
GPJ2
34
35
GPJ3
Pin 27
Pin 28
GPJ4
36
TX0(UART)
GPE0
Pin 29
Pin 30
GPE1
RX0(UART)
39(LED3)
GPH1
Pin 31
Pin 32
NC
NC
VDD3
VDD3
Pin 33
Pin 34
VDD3
VDD3
GND
GND
Pin 35
Pin 36
GND
GND

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4 GETTING STARTED WITH NUMAKER TOMATO
4.1 Download Software Package and USB CDC Driver
Please download the software package from Nuvoton’s official webpage:
http://www.nuvoton.com/opencms/resource-download.jsp?tp_GUID=SW1020160914071736
The software package includes the Linux 3.10 kernel, precompiled Python bin, USB Wi-Fi driver,
Periphery sample code and application demo code.
Please download Nuvoton USB CDC driver from Nuvoton’s official webpage:
http://www.nuvoton.com/opencms/resource-download.jsp?tp_GUID=SW0620160913015934
4.2 Install Nuvoton USB CDC Driver
Please execute the “NuvotonCDC_V1.00.001_Setup.exe” to install the driver.
Figure 4-1 Software Package List
1
2
3
4

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4.3 Copy Software Package to MicroSD Card
Unzip the software package file to SD card. You will see folders and kernel file.
Figure 4-2 Software Package List
4.4 Connect and Set Up Hardware
The hardware setup is shown as Figure 4-2. Connect CN17 (MiniUSB) to a USB port on PC.
Figure 4-3 NuMaker Tomato Hardware Setup

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4.5 Open USB CDC Serial COM Port
Check the COM port number from device manager.
Figure 4-4 Check COM Port Number from Windows Device Manager
1. Use HyperTerminal, Putty or TeraTerm to open the serial COM port, and set the baud rate to
115200.
2. Push the RESET key.
3. Wait the Linux boot up for about 5 sec. If it is finished, you will see the ”~# “massage on
HyperTerminal.
4.
Figure 4-5 NuMaker Uni and Nu-Link Mini Connection

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5 EXAMPLE OF EXECUTING SAMPLE CODE
User can modify starter.sh to change auto executing Python sample code
Example: Start a HTTP server.
/mnt/mmcblk0p1/Python/bin/python -m SimpleHTTPServer
Figure 5-1 starter.sh

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6 APPENDIX
6.1 Schematics
Title Size Document Number Rev Date: Sheet of
NUC972 1.0 NUC976_TOMATO
B
4 9Monday, April 18, 2016
GPI15
GPI13
GPI14
GPB2
GPB3
R29 10K
R33 10M
GPA4
R31 1M
UVDD33
SW2 HPS602-E
1 24
3
C15 30pF C16
30pF
DP0
VSS
GPE1 GPD5 GPD7 GPD6
DM0
GPD4 GPD3
DP1
GPD0 GPD1 GPD2
DM1
HDS
RESETn GPJ2 GPJ1 GPJ3 GPJ4 GPJ0 GPB13 GPB14 GPB11 GPB12 GPB15 GPB10 GPB8 GPB9 GPB7 GPB6
R75 10K R78 10K
CB15 0.1uF
R85 10K
VSS
XOUT32K
CP36 10uF
GPA1
XIN32K
Y1
32.768KHz GPA0
VDD33
TP3
VDD12
TP4
RESETn
CP15 10uF
CP24 10uF
CB25 0.1uF
AVDD33
CP37 10uF
VSS
GPG[0:1]
VSS
GPG[6:14] GPA[0:15]
VSS
1 0
GPB[2:3]
SW2.2 WDT 0: OFF. 1: ON.
GPB[6:15] GPI[3:15]
NHS-976-1-IN-1M11
GPJ[0:4] GPF[0:10]
VSS
GPE[0:1] GPD[0:7]
L8 FB
L9 FB
GPH[0:1]
L11 FB
VSS
UVDD12
R39 0
VSS
VD33
VD33
CB23 0.1uF
VDD12
CB13 0.1uF
VDD33
CB14 0.1uF
VDD33
VDD12
VSS
VDD33
VD33
VDD12
CP31 10uF
CB21 0.1uF
CB22 0.1uF
CP30 10uF
CP41 10uF
L10 FB
CB26 0.1uF
VD12
L13 FB
VD18
CP33 10uF
VSS
VSS
VD12
CP23 10uF
CB24 0.1uF CP34
10uF
CP25 10uF
CP26 10uF
VSS
CB16 0.1uF
CB17 0.1uF
CB18 0.1uF
CB19 0.1uF
CB20 0.1uF
MVDD18
VSS
L6 FB
CP9 10uF CP8
10uF
CP42 10uF CP12
10uF
CB8 0.1uF
CB9 0.1uF
CB27 0.1uF
MVDD18
AVDD33
VD33 VD12 VSS VD18
VSS
CP19 10uF CP20
10uF
R27 12.1K R28 12.1K
VSS
AIN4 AIN7 AIN6 AIN5
REXT0
TXC9HT10-3.2X1.5mm
REXT1
XOUT
U2 NUC976DK62Y
HDS
1
SDA0/GPG1
2
SCL/GPG0
3
WS/GPG14
4
BITCLK/GPG13
5
DATAI/GPG12
6
DATAO/GPG11
7
SYSCLK/GPG10
8
VDD33
9
VDD12
10
VDDM18
11
VDDM18
12
VDD12
13
GPG9
14
GPG8
15
GPG7
16
GPG6
17
PWM3/GPA15
18
PWM2/GPA14
19
PWM1/GPA13
20
PWM0/GPA12
21
GPA11
22
GPA10
23
VDD33
24
GPA9
25
GPA8
26
GPA7
27
GPA6
28
GPA5
29
GPA4
30
GPA3
31
GPA2
32
CFG1/GPA1
33
CFG0/GPA0
34
AIN6
35
AIN4
36
AVSS33
37
AVDD33
38
AIN7
39
AIN5
40
AVREF
41
VBAT33
42
PWREN
43
nWAKEUP
44
XIN32K
45
XOUT32K
46
VDD12
47
SCL1/GPI3
48
SDA1/GPI4
49
TX1/GPI5
50
RX1/GPI6
51
GPI7
52
GPI8
53
TX4/GPI9
54
RX4/GPI10
55
GPI11
56
TX8/GPI12
57
RX8/GPI13
58
RTS8/GPI14
59
CTS8/GPI15
60
VDD33
61
PWM0/GPB2
62
PWM1/GPB3
63
VSS
64
SPI_SS0/GPB6 65
SPI_CLK/GPB7 66
SPI_D0_DO/GPB8 67
SPI_D1_DI/GPB9 68
SPI_D2/GPB10 69 SPI_D3/GPB11 70
TX10/GPB12 71
RX10/GPB13 72
RTS10/GPB14 73 CTS10/GPB15 74
TDO/GPJ3 75
TCK/GPJ0 76 TMS/GPJ1 77
TDI/GPJ2 78
nTRST/GPJ4 79
nRESET 80
VDD33 81 VDD12 82
VDDM18 83 VDDM18 84
VDD33 85
CMD/GPD0 86
CLK/GPD1 87
D0/GPD2 88 D1/GPD3 89 D2/GPD4 90 D3/GPD5 91
nCD/GPD6 92
nPWR/GPD7 93
VDD12 94
VSS 95
RX0/GPE1 96
TX0/GPE0 97
VDD33 98
XIN12M 99
XOUT12M 100
VSS 101
RXERR/GPF9 102
CRSDV/GPF8 103
RXD1/GPF7 104
RXD0/GPF6 105
REFCLK/GPF5 106
TXEN/GPF4 107
TXD1/GPF3 108
TXD0/GPF2 109
MDIO/GPF1 110
MDC/GPF0 111
UH_OVC/GPH1 112
UD_VBUS/GPH0 113
UH_PWR/GPF10 114
VDD12 115
VDD12 116
UVDD12 117
DM1 118
DP1 119
UVDD33 120
REXT1 121
UVDD12 122
UVSS 123
DM0 124
DP0 125
UVDD33 126
REXT0 127
VSS 128
HDS GPG1 GPG14 GPG0 GPG13 GPG12 GPG11 GPG10 GPG9
GPG6
GPG7 GPG8
GPA0
GPA14 GPA15 GPA13 GPA12 GPA11
VSS
VSS
GPA10 GPA9 GPA8 GPA7 GPA6 GPA5 GPA4
C17 20pF
CP13 10uF
GPA1
XIN
GPA3 GPA2
C14 20pF X1
12MHz CRYSTAL_S3225A
XIN
1
GND
2GND 4
XOUT 3
GPA3
VSS
VSS
CB10 0.1uF
DP0
DM0
CP14 10uF
GPA5
DM1
DP1
CB11 0.1uF
CB12 0.1uF
GPH1
GPH0
GPF10
SW2.1 Boot Fm 0: USB. 1: SPI.
GPF1
GPF2
GPF0
GPF3
GPF4
R30 10K
GPF7
GPF5
GPF6
GPF9
GPF8
XOUT
XIN
GPE0
AIN6
AIN4
VSS
AVSS
C18 1uF
AIN5
AIN7
AVREF
XOUT32K
XIN32K
GPI4
GPI3
GPI6
GPI5
GPI7
GPI8
GPI9
GPI12
GPI11
GPI10
Figure 5-1 MPU Schematic

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Tit le Size Document Num ber Rev Date: Sheet of
RMII 1.0 NUC976_TOMATO
A
6 9Monday, April 18, 2016
RESETn
REFCLK
GPF[0:9]
PHY_AVDD33
MDIOGPF1 MDCGPF0 TXD1GPF3 TXD0GPF2 TXENGPF4 REFCLKGPF5 RXD0GPF6 RXD1GPF7 RXERRGPF9 CRSDVGPF8
TX- RX-
RESETn
RX+
REG_OUT
CN11 RJ-45 8P8C_LED R/A
TX+ 1
TX- 2
RX+ 3
NC 4 NC 5
RX- 6
NC 7 NC 8
Shield
13
Shield
14
LED-
9LED+
10
LED-
11 LED+ 12
MDI_TP MDI_TN
TX+
LAN_VS
PHY_DVDD33 PHY_TEST
R47 5.1K
R57 75 R58
75
R50 NC
R49 NC
ETH_XO
R60 75
R52 NC
LAN
R51 10K
CRS
R56 NC
R55 10K
NHS-976-1-IN-1M11
CRSDV
PHY_VS
R62 5.1K
R61 NC
COL
COL
CRS
T1 TS8121C
TX+
16
TX-
14
NC
13 TD- 3
TD+ 1
RD+ 6
RD- 8
NC 5
RX-
9RX+
11
CT 2
NC 4
CT 7
CT
10
NC
12
CT
15
CP46 10uF
PHY_VS
R48 300
PHY_VS
R53 5.1K MDI_RP
MDI_RN
PHY_VS
CP44 10uF
CB28 0.1uF
CB30 0.1uF
U7 IP101GR
TxEr/FxSD
1
Xi
2
Xo
3
Col/RMII
4
TxEn
5
TxD3
6
TxD2
7
TxD1
8
TxD0
9
TxClk/50MClki
10
LED0/PhyAD0
11
LED3/PhyAD3
12
IOVDD
13
RxClk/50M_Clko
14
RxD3
15
RxD2
16
TestOn 24
MDIO 23
MDC 22
RxEr/Int32 21
CRS/LEDMod 20
RxDV/CRS_DV 19
RxD0 18 RxD1 17
nRst 32
AVD33 31
MDiTp 30 MDiTn 29
RegOut 28
MDiRp 27 MDiRn 26
Iset 25
EPad 33
TXD1 TXD0
MDC CRSDV
RXD1 RXD0
MDIO RXERR MDI_TN MDI_TP
TXEN MDI_RP
MDI_RN
PHY_VS
ETH_XI
PHY_VS
R44 1M C24
20pF
X2 25MHz CRYSTAL_S3225A
XIN
1
GND
2GND 4
XOUT 3
ETH_XO ETH_XI
C23 20pF
PHY_VS
R40 6.19K/1%
PHY_TEST
PHY_AD3 PHY_AD0
VD33
L14 FB
VSS
VD33
VSS
PHY_DVDD33
CP45 10uF
PHY_AVDD33
PHY_DVDD33
PHY_VS
CP48 10uF
L15 FB
VD33
VSS
CP47 10uF
REFCLK
PHY_VS
C22 7pF
RX_CLK
R43 0
PHY_VS
R41 5.1K
PHY_DVDD33
R42 5.1K
CB29 0.1uF
VSS PHY_VS
R59 75
C30 0.01uF/2KV
C29 0.01uF/2KV
PHY_DVDD33
R54 300
PHY_AD3
C26 0.1uF
C25 0.01uF
PHY_VS
C27 0.1uF C28
0.01uF
PHY_AD0
Figure 5-2 Ethernet Schematic

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Tit le Size Document Num ber Rev Date: Sheet of
POWER 1.0 NUC976_TOMATO
A
5 9Friday, April 15, 2016
VD33
VS
R37 164K
R38 100K
VD12
U6 AMS1117-1.2V
IN
3
GND
1
OUT
2
OUT
4
OCP
VIN5V
Q2 2N3904
R36 100K
C21 0.01uF
VS
VD18
U5 AMS1117-1.8V
IN
3
GND
1
OUT
2
OUT
4
VIN5V
C19 0.1uF
VBUSD5V
VCOM5V
VS
R34 47K
C20 0.1uF
USB5V
R35 47K
R100 24K
VS
VCOM5V
VS
VBUSD5V
R101 2.7K
VIN5V
VD33 VD12 VIN5V VD18
VSS VS
LED9 RED
U3
APL3211A
VIN
1
GND
2NC 3
FAULT 4
EN
5BAT 6
ILIM
7
VOUT 8
VSS
VSS
NHS-976-1-IN-1M11
VS
VS
R99 10K
VS VSS
VIN5V
CB7 0.1uF VS
CP7 47uF
VS
VS
D1 SS24A D2 SS24A
VS
CP29 10uF
CP38 10uF
CP43 10uF
U4
NCT3705U-A
VIN
1
GND
2EN 3
SET 4
VOUT 5
VIN5V
Figure 5-3 Power Schematic

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Tit le Size Document Num ber Rev Date: Sheet of
SPI_SD 1.0 NUC976_TOMATO
A
7 9Monday, April 18, 2016
R64 10K
R66 10K
R65 NC
R63 10K
R67 0
R72
33
R68 33
R70 100K R71
100K
SD_CMD SD_D2 SD_D3
+CP50
10uF
SD_D1
TF_CD
SD_D0
SD_CD
CN12 Mini SD SOCKET
DAT1
8DAT0 7VSS 6CLK 5VDD 4CMD 3DAT3/CD 2DAT2 1
ANT1 9
ANT2
10
SW_VDD
11
SW_VSS 12
C1
13 C2
14 C3
15 C4
16
SDVDD33
SD_CLK
VSS
VSS
RN4 10KR
1
2
3
4 5
6
7
8
VSS
SVDD33
GPB[6:11]
+CP49
10uF C0603
SD
SPI
C31 NC
CB31 0.1uF
CB32 0.1uF
NHS-976-1-IN-1M11
U9 W25Q128BV
HOLD
1
VCC
2
NC
3
NC
4
NC
5
NC
6
CS
7
DO
8WP 9
GND 10
NC 11 NC 12 NC 13 NC 14
DI 15
CLK 16
U8 W55X16
/CS
1
DO
2
/WP
3
GND
4DI 5
CLK 6
/HOLD 7
VCC 8
SPI0_D3 SVDD33 SPI0_SS0 SPI0_D1 SPI0_D2
SPI0_D0
VD33
VSS
SPI0_CLK
GPI11
SVDD33 SPI0_D3 SPI0_D0 SPI0_CLK
SPI0_SS0 SPI0_D1 SPI0_D2
GPB8 SPI0_D0 GPB7 SPI0_CLK GPB6 SPI0_SS0 GPB11 SPI0_D3 GPB10 SPI0_D2 GPB9 SPI0_D1
R69 0
VD33
CB33 0.1uF
VSS
VSS
VSS
GPI11
SPI__RST
SVDD33 SVDD33 SVDD33
R72 should be closed to NUC976 & C31 should be closed to CN12.
VD33
GPD[0:6]
GPD0 SD_CMD GPD1 SD_CLK GPD2 SD_D0 GPD4 SD_D2 GPD3 SD_D1 GPD5 SD_D3
GPD6 SD_CD
CIM-H75N2
VSS
iSDCLK
Figure 5-4 MicroSD Schematic

NuMaker Tomato
Sep. 30, 2016 Page 19 of 25 Rev 1.00
NUMAKER TOMATO USER MANUAL
Tit le Size Document Number Rev
Date: Sheet of
USB 1.0 NUC976_TOMATO
A
8 9Monday, April 18, 2016
GPH0
DP0 DM0 DM1 DP1
VD33
VSS
USB0_HDS
HOST-1USBD-0/HOST-0
NHS-976-1-IN-1M11
VBUSD5V
Q7 IS2304
G
D S
DM0 DP0
R73 4.7 R74
4.7
VBUS
ID Q6 Q4 Q5 OPEN OFF OFF ON (USB0_VBUS -> VBUS_NUC) SHORT ON ON OFF (UV0 -> USB0_VBUS)
VSS
CP51 10uF
CN13 USB miniAB RECEP.
V+
1
D-
2
D+
3
ID
4
GND
5
6
7 8
9
USB_VSVSS
USB_VS
VBUSVLDGPH0
L17 FB
CN14
USB TYPE-A RECAP.
VBUS
1
D-
2
D+
3
GND
4Shield 5
Shield 6
VIN5V
VIN5V
USB_VS
R76 4.7
DM1
R77 4.7
DP1
L16 FB
VIN5V VD33 VSS
Q4 IS2303
G
DS
R81 51K
Q6
IS2303
G
D S
Q5 IS2304
G
D S
R82 51K
USB0_ID
USB_VS
VBUS
VIN5V
USB_VS
R80
20K
VBUSVLD
R83
39K
VSS
R84
10K
USB0_ID
USB0_HDS
VBUSD5V
Figure 5-5 USB Schematic

NuMaker Tomato
Sep. 30, 2016 Page 20 of 25 Rev 1.00
NUMAKER TOMATO USER MANUAL
12M_I
RST#
RXD TXD
12M_I
VCOM
3.3V ICE DAT ICE CLK RST# VS
NHS-976-1-IN-1M11
VD33
R92 33 R93
33 R91 27
R96 27
U13 NUC122ZD2AN QFN33
VBUS 9
USB_LDO_OUT 10
D- 11
D+ 12
MOSI0_0/PC.3 13 MISO0_0/PC.2 14
SPI0_CLK/PC.1 15
SPI0_CS0/PC.0 16
VSS
8LDO_IN_5V
7LDO_OUT
6TX1/PB.5
5RX1/PB.4
4
SPI2_CLK/PD.1
26
MISO2_0/PD.2
27
I2C1_SDA/PA.10
3I2C1_SCL/PA.11
2
MOSI2_0/PD.3
28
INT0/PB.14
1
RESET#
31 XT_IN 30 XT_OUT 29
AVDD
25
PVSS
32
MOSI1_1/PC.13 17
MISO1_1/PC.12 18
MOSI1_0/PC.11 19
MISO1_0/PC.10 20
SPI1_CLK/PC.9 21
SPI1_CS0/PC.8 22
ICE_CLK 24
ICE_DAT 23
EPAD
33
R86
10K
C34 1uF
VS
VD33
D+
X3
12MHzG
4
S
3
G
2
S
1
D-
VCOM5V
C35 1uF
ICE_CLK
ICE_DAT
RX
TX
C38 10uF
D+ D-
VCOM5V
CP55 10uF
RXD TXD RX
TX
CN15
HEADER 5
1 2 3 4 5
VD33
Tit le Size Document Num ber Rev
Date: Sheet of
VCOM 1.0 NUC976_TOMATO
A
9 9Monday, April 18, 2016
ICE_DAT RST# ICE_CLK
C40 20pF
C39
20pF
RST#
CB34
0.1uF
TXC7V-3.2x2.5mm
CN17 USB_A
mini_5P_B_TYPE
GND
4DP 3DM 2VCC
1
SHIELD 5 SHIELD
6
VS
VD33
VCOM5V L18
FB
GND
VS
VS
VS
VS
VS
VSVS
VS
VS
VS
VCOMVS
VD33
VCOMVS
12M_O C37
1uF
VS
12M_O
Figure 5-6 USB to UART Schematic