Mini Shield for NanoPi Duo

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1 Introduction

Mini Shield for NanoPi Duo 侧面

Mini Shield for NanoPi Duo 正面

Mini Shield for NanoPi Duo 底面

• The Mini Shield for NanoPi Duo is a dedicated carrier board for the NanoPi Duo. It extends Duo's Ethernet, serial port, audio, USB and etc.
• The mini shield has an onboard JMS567 USB to SATA IC and an mSATA interface.
• The mini shield has an onboard FE1.1s which extends four USB Host ports.
• It has a serial port and Ethernet port.
• It has an onboard microphone and a 3.5mm audio jack.
• The mini shield has a 2 x9 Pin header which extends NanoPi Duo's IO pins.
• There is a 6-pin SPI header on the reverse side.
• This shield's dimension and mounting holes' positions are exactly the same as those of a Raspberry Pi therefore it can well fit into a Raspberry Pi's case.

2 Hardware Spec

• its dimension is the same as that of a Raspberry Pi and it can fit into a Pi's case
• 4 x USB Host port
• Serial port and Ethernet port
• Audio input and output
• 2 x 9 Pin GPIO header
• 6 x Pin SPI header
• PCB dimension(mm): 85 x 56

2.1 Diagram, Layout and Dimension

Mini Shield for NanoPi Duo Layout

Here is a layout of ports and interfaces. There are detailed descriptions for ports and interfaces on the other side of the board.

• NanoPi Duo Pin-header Pin Description

Number#	Name		Number#	Name
1	VDD_5V		1	DEBUG_RX(UART_RXD0)/GPIOA5/PWM0
2	VDD_5V		2	DEBUG_TX(UART_TXD0)/GPIOA4
3	SYS_3.3V		3	GND
4	GND		4	I2C0_SCL/GPIOA11
5	GPIOL11/IR-RX		5	I2C0_SDA/GPIOA12
6	GPIOG11		6	UART3_TX/SPI1_CS/GPIOA13
7	USB-DM3		7	UART3_RX/SPI1_CLK/GPIOA14
8	USB-DP3		8	UART3_CTS/SPI1_MISO/GPIOA16
9	USB-DM2		9	UART3_RTS/SPI1_MOSI/GPIOA15
10	USB-DP2		10	UART1_RX/GPIOG7
11	EPHY-RXN		11	UART1_TX/GPIOG6
12	EPHY-RXP		12	CVBS
13	EPHY-TXN		13	LINEOUT_L
14	EPHY-TXP		14	LINEOUT_R
15	EPHY-LED-LINK		15	MIC_P
16	EPHY-LED-SPD		16	MIC_N

• 9x2 Pin Header Pin Description

Number#	Name	Number#	Name
1	SYS_3.3V	2	VDD_5V
3	I2C0_SDA / GPIOA12	4	VDD_5V
5	I2C0_SCL / GPIOA11	6	GND
7	GPIOG11	8	UART1_TX / GPIOG6
9	GND	10	UART1_RX / GPIOG7
11	SPI1_MOSI/GPIOA15	12	GPIOL11
13	SPI1_MISO/GPIOA16	14	GND
15	SPI1_CLK/GPIOA14	16	SPI1_CS/GPIOA13
17	SYS_3.3V	18	NC

• 6 Pin SPI Pin Header Pin Description

Number#	Name
1	GND
2	SYS_3.3V
3	SPI1_CS/GPIOA13
4	SPI1_CLK/GPIOA14
5	SPI1_MOSI/GPIOA15
6	SPI1_MISO/GPIOA16

3 Hardware Setup

A NanoPi Duo can be mounted on a Mini Shield. Here is a hardware setup diagram:

The Mini Shield for NanoPi Duo has an Ethernet port and USB ports

It can fit into a Raspberry Pi's case. Here is a hardware setup:

4 Applications

4.1 Connect SSD to mSATA

Connect an SSD hard disk to the shield's mSATA, power on the board and type the following command to check the SSD's status:

fdisk -l

Here is what you expect to observe:

4.2 Boot System from SSD

A NanoPi-Duo can be booted from the SSD on a Mini Shield for NanoPi Duo. Booting OS from an SSD has the following benefits:
1) faster read/write;
2) much longer life time than a TF card;
3) more reliable than booting from a TF card;

You can install an OS to SSD by using the npi-config utility. Here are the steps to follow:

sudo npi-config

Enter the "Boot Options" menu, go to "Boot device" and you will see two options:
1) D1 Hard drive
2) D2 TF card
Select "D1 Hard drive" and proceed with its prompts.
Select "D2 TF card" to boot OS from a TF card.

If your npi-config doesn't have a "Boot device" menu it might be that your npi-config is out of date and you can update it by selecting "Update" in the menu.

4.3 Audio

1. Audio Recording:

arecord -D hw:0，0 -f cd test.wav

Here is what you expect to observe:

2. Audio Playing:

aplay /root/Music/test.wav

Here is what you expect to observe:

5 Resources

• [Schematic](Schematic - Mini Shield for NanoPi Duo.pdf)
• [Dimension](Dimension - Mini Shield for NanoPi Duo_PCB（dxf）)

6 Update Log

6.1 August-16-2017

• Released English Version

6.2 Nov-9-2017

• Added section 4.2