View source for Mini Shield for NanoPi NEO Core/Core2

[[Mini Shield for NanoPi NEO Core/Core2/zh|查看中文]]

==Introduction==
[[File:Mini Shield for NanoPi NEO Core_Core21.jpg|thumb|Mini Shield for NanoPi NEO Core/Core2 侧面]]
[[File:Core22.jpg|thumb|Mini Shield for NanoPi NEO Core/Core2 正面]]
[[File:Core23.jpg|thumb|Mini Shield for NanoPi NEO Core/Core2 底面]]
* The Mini Shield for NanoPi NEO Core/Core2 is a custom SDK carrier board developed for the [[NanoPi_NEO_Core/zh|NanoPi NEO Core]] and [[NanoPi_NEO_Core2/zh|NanoPi NEO Core2]]. It has Ethernet port, serial debug port, audio, USB port and etc.
* 1 x Onboard JMS567 USB to SATA IC and 1 x M.2 SSD interface for connecting a 2242 SSD.
* 2 x USB Host ports.
* 1 x Serial debug port for connecting a serial communication board and 1 x Ethernet port.
* 1 x Onboard Microphone and 1 x 3.5mm audio jack for audio recording and playing.
* 2 x 13 Pin header which populate the NanoPi NEO Core/Core2's IO pins.
* 1 x button and 1 x IR interface for working with a remote control
* Room for an SPI Flash(SOP8-200mil) is reserved. Users can solder an SPI flash on the board.
* It has the same dimension and mounting holes as those of a Raspberry Pi. The whole board can be well fit into a RPi's case

==Hardware Spec==
* Same form factor as RPi, can be well fit into a RPi's case
* 2 x USB Host
* 1 x Serial debug port and 1 x Ethernet port
* 1 x audio input and 1 x audio output
* 2 x 13 Pin GPIO pin-header
* 1 x Button
* 1 x M.2 2242 SSD interface
* 1 x IR receiver interface
* PCB dimension(mm): 85 x 56
[[File:Mini Shield for NanoPi NEO Core_Core2_PCB.png | frameless|600px|Mini Shield for NanoPi NEO Core/Core2_PCB]]

===Layout===
[[File:Mini_Shield_for_NanoPi_NEO_Core_Core2-layout.jpg |thumb|500px|Mini Shield for NanoPi NEO Core/Core2 Layout]]
The Mini Shield for NanoPi NEO Core/Core2's layout of interface and connectors is shown on the right. On its back there are silkscreens of description for the connectors and pins.<br>

<span style="color:#ff0000">
When you mount a NanoPi NEO Core or NanoPi NEO Core2 to a Mini Shield be aware of the Core/Core2's mounting position. Each pin-header's first pin is marked as a triangle.<br>
</span>
*  '''2x13 Pin header Pin Description '''
::{| class="wikitable"
|-
| 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   || UART2_TX / GPIOA0     ||12    || GPIOA6
|-
|13   || UART2_RTS / GPIOA2     ||14    ||GND
|-
|15   || UART2_CTS / GPIOA3    ||16    || UART1_RTS / GPIOG8
|-
|17   || SYS_3.3V    ||18    || UART1_CTS / GPIOG9	
|-
|19   || SPI1_MOSI/GPIOA15     ||20    ||GND
|-
|21   || SPI1_MISO/GPIOA16    ||22    ||UART2_RX / GPIOA1
|-
|23   || SPI1_CLK/GPIOA14      ||24    || SPI1_CS / GPIOA13
|-
|25   ||  GND    ||26    || SPDIF-OUT/GPIOA17
|}

==Hardware Setup==
A [[NanoPi_NEO_Core/zh|NanoPi NEO Core]] or [[NanoPi_NEO_Core2/zh|NanoPi NEO Core2]] can be mounted on a Mini Shield for NanoPi NEO Core/Core2. Here is a hardware setup:<br>
[[File:Core_Mini_Shield_for_NanoPi_NEO_Core_Core2.jpg|frameless|450px|NanoPi NEO Core接Mini Shield for NanoPi NEO Core/Core2]]
[[File:Core2_Mini_Shield_for_NanoPi_NEO_Core_Core2.jpg|frameless|450px|NanoPi NEO Core2接Mini Shield for NanoPi NEO Core/Core2]]

It is convenient to connect a USB device and network to a Mini Shield for NanoPi NEO Core/Core2<br>
[[File:Core2 USB2LCD.jpg|frameless|450px|NanoPi NEO Core/Core2]]<br>

A Mini Shield for NanoPi NEO Core/Core2 can be well fit into a RPi's case:<br>
[[File:Mini Shield NanoPi NEO Core-Core2-2.jpg|frameless|450px|Mini Shield for NanoPi NEO Core/Core2_NanoPi NEO Core]]
[[File:Mini Shield NanoPi NEO Core-Core2-3.jpg|frameless|450px|Mini Shield for NanoPi NEO Core/Core2_NanoPi NEO Core2]]

==Application==
===1. M.2 2242 SSD Interface===
Insert an SSD hard drive to the M.2 2242 interface. After system is booted you can check the SSD device by running the following command:
<syntaxhighlight lang="bash">
fdisk -l
</syntaxhighlight>
Here is what you expect to see:<br>
[[File:ssd.jpg|frameless|600px| check SSD]]
===2. Boot OS from SSD===
You can boot a NanoPi NEO Core or Core2 from an SSD hard driver inserted in a Mini Shield for NanoPi NEO Core/Core2. This way of booting an OS has the following advantages:<br />
1) faster read/write;<br />
2) an SSD has much longer life than a TF card;<br />
3) more reliable than booting from a TF card;<br />
<br />
You can install an OS to an SSD hard drive by using the npi-config utility. Here is a command to start the npi-config utility:<br />
<syntaxhighlight lang="bash">
sudo npi-config
</syntaxhighlight>
[[File:Boot Options.jpg|frameless|600px|Boot Options]]<br />
After the utility shows the "Boot Options" menu select "Boot device" and you will see the following two options:<br />
1) D1 Hard drive<br />
2) D2 TF card<br />
[[File:Choose_Boot device.jpg|frameless|600px|Choose Boot device]]<br />
Select "D1 Hard drive" to boot from an SSD hard drive.<br />
If you want to boot an OS from a TF card you need to select "D2 TF card".<br /><br />
If your npi-config utility doesn't have "Boot device" on its menu you may need to update your npi-config utility by running the "Update" function on the menu.<br />

===3. Audio Input & Output===
1. Audio Recording:
<syntaxhighlight lang="bash">
arecord -D hw:0,0 -f cd test.wav 
</syntaxhighlight>
Here is what you expect to see:<br>
[[File:audio_in.jpg|frameless|600px| Record]]<br>
2. Audio Playing with the following command e.g. playing a "/root/Music/test.wav" file
<syntaxhighlight lang="bash">
 aplay /root/Music/test.wav
</syntaxhighlight>
Here is what you expect to see:<br>
[[File:audio_out.jpg|frameless|600px| Play]]<br>
<br>
You can use the alsamixer utility to adjust the music's volume

==Resources==
*[Schematic]([http://wiki.friendlyelec.com/wiki/images/0/00/Mini_Shield_for_NanoPi_NEO_Core_Core2.pdf Schematic - Mini Shield for NanoPi NEO Core/Core2.pdf])
*[Dimension]([http://wiki.friendlyelec.com/wiki/index.php/File:Mini_Shield_for_NanoPi_NEO_Core_Core2_PCB-Dimensions.rar Dimension - Mini Shield for NanoPi NEO Core/Core2_PCB（dxf）])

==Update Log==
===Dec-7-2017===
* Released English version