Difference between revisions of "NanoPi Fire2A"

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* Power: DC 5V/2A
 
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* Temperature measuring range: -20℃ to 80℃
 
* Temperature measuring range: -20℃ to 80℃
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* OS: FriendlyCore
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* OS: FriendlyCore(Linux Kernel 4.4 + Qt5.9 + OpenGL2.0)
 
[[File:NanoPi Fire2A-B03.png|frameless|500px|compact]]
 
[[File:NanoPi Fire2A-B03.png|frameless|500px|compact]]
  

Revision as of 08:29, 9 November 2017

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1 Introduction

Overview
Front
Back
  • The NanoPi Fire2A is a high performance ARM Board developed by FriendlyElec for Hobbyists, Makers and Hackers for IOT projects. It features Samsung's Cortex-A9 Quad Core S5P4418@1.4GHz SoC and 512MB 32bit DDR3 RAM. It has a Gbps Ethernet port. It boots Android and Debian from a TF card. It integrates an HDMI and LCD interface. Its adoption of the Raspberry Pi's GPIO pin header makes it compatible with both Raspberry Pi's external GPIO modules and Arduino's shield boards. Its PCB dimension is 75 x 40 mm.

2 Hardware Spec

  • CPU: S5P4418, 1.4GHz
  • RAM: 512MB DDR3
  • Connectivity: Gbps Ethernet port
  • PMU Power Management: Implemented by a Cortex-M0 MCU, support software power-off, and RTC alarm power-up functions
  • USB 2.0 Type A x 1
  • Debug Serial Port/UART0 x 1
  • microSD Slot x 1
  • microUSB x 1: for data transmission and power input
  • LCD Interface: 0.5 mm pitch SMT FPC seat, for full-color LCD (RGB: 8-8-8)
  • HDMI: HDMI 1.4A, microHDMI(Type-D), 1080P60
  • DVP Camera Interface: 0.5mm spacing FPC socket. It includes ITU-R BT 601/656 8-bit, I2C, PWM and IO
  • GPIO: 2.54mm spacing 40pin, compatible with Raspberry Pi's GPIO. It includes UART, SPI, I2C, PWM, IO etc
  • Button: Power Button x 1, Reset Button x 1
  • LED: LED for Power Indication x 1, System LED x 1
  • RTC: RTC Battery Seat
  • PCB Dimension: 75 x 40mm
  • Power: DC 5V/2A
  • Temperature measuring range: -20℃ to 80℃
  • OS: FriendlyCore(Linux Kernel 4.4 + Qt5.9 + OpenGL2.0)

compact

3 Diagram, Layout and Dimension

3.1 Layout

NanoPi Fire2A Layout
  • GPIO Pin Spec
Pin# Name Pin# Name
1 SYS_3.3V 2 VDD_5V
3 I2C0_SDA 4 VDD_5V
5 I2C0_SCL 6 DGND
7 GPIOD8/PPM 8 UART3_TXD/GPIOD21
9 DGND 10 UART3_RXD/GPIOD17
11 UART4_TX/GPIOB29 12 GPIOD1/PWM0
13 GPIOB30 14 DGND
15 GPIOB31 16 GPIOC14/PWM2
17 SYS_3.3V 18 GPIOB27
19 SPI0_MOSI/GPIOC31 20 DGND
21 SPI0_MISO/GPIOD0 22 UART4_RX/GPIOB28
23 SPI0_CLK/GPIOC29 24 SPI0_CS/GPIOC30
25 DGND 26 GPIOB26
27 I2C1_SDA 28 I2C1_SCL
29 GPIOC8 30 DGND
31 GPIOC7 32 GPIOC28
33 GPIOC13/PWM1 34 DGND
35 SPI2_MISO/GPIOC11 36 SPI2_CS/GPIOC10
37 AliveGPIO3 38 SPI2_MOSI/GPIOC12
39 DGND 40 SPI2_CLK/GPIOC9


  • Debug Port（UART0）
Pin# Name
1 DGND
2 VDD_5V
3 UART_TXD0
4 UART_RXD0
  • DVP Camera Interface Pin Spec
Pin# Name
1, 2 SYS_3.3V
7,9,13,15,24 DGND
3 I2C0_SCL
4 I2C0_SDA
5 GPIOB14
6 GPIOB16
8 GPIOC13/PWM1
10 NC
11 VSYNC
12 HREF
14 PCLK
16-23 Data bit7-0
  • RGB LCD Interface Pin Spec
Pin# Name Description
1, 2 VDD_5V 5V output, LCD power
11，20，29, 37，38，39，40, 45 DGND ground
3-10 Blue LSB to MSB RGB Blue
12-19 Green LSB to MSB RGB Green
21-28 Red LSB to MSB RGB Red
30 GPIOB25 available for users
31 GPIOC15 occupied by FriendlyElec one wire technology to recognize LCD models and control backlight and implement resistive touch, not applicable for users
32 XnRSTOUT Form CPU low when system is reset
33 VDEN signal the external LCD that data is valid on the data bus
34 VSYNC vertical synchronization
35 HSYNC horizontal synchronization
36 LCDCLK LCD clock, Pixel frequency
41 I2C2_SCL I2C2 clock signal, for capacitive touch's data transmission
42 I2C2_SDA I2C2 data signal, for capacitive touch's data transmission
43 GPIOC16 interrupt pin for capacitive touch, used with I2C2
44 NC not connected
  • RTC
3.35uA@3V
  • USB 2.0 Host
with 1A over current protection
Note
  1. SYS_3.3V: 3.3V power output
  2. VDD_5V: 5V power input/output. When the external device’s power is greater than the MicroUSB’s the external device is charging the board otherwise the board powers the external device. The input range is 4.7V ~ 5.5V
  3. For more details please refer to the schematic. NanoPi Fire2A 1709 Schematic.pdf

3.2 Board Dimension

NanoPi Fire2A Dimensions

For more details please refer to the dxf drawimg document.NanoPi Fire2A 1709 dxf文件

4 Get Started

4.1 Essentials You Need

Before play with your NanoPi Fire2A please get the following items ready

  • NanoPi Fire2A
  • microSD Card/TFCard: Class 10 or Above, minimum 8GB SDHC
  • microUSB power. A 5V/2A power is a must
  • HDMI monitor or LCD
  • USB keyboard and mouse
  • A Host running Ubuntu 14.04 64 bit system

4.2 TF Card We Tested

To make your NanoPi Fire2A boot and run fast we highly recommend you use a Class10 8GB SDHC TF card or a better one. The following cards are what we used in all our test cases presented here:

  • SanDisk TF 8G Class10 Micro/SD TF card:

SanDisk MicroSD 8G

  • SanDisk TF128G MicroSDXC TF 128G Class10 48MB/S:

SanDisk MicroSD 128G

  • 川宇 8G C10 High Speed class10 micro SD card：

chuanyu MicroSD 8G

4.3 Make an Installation MicroSD Card

4.3.1 Under Windows

Get the following files from here:download link to download image files:

  • Get a 4G SDHC card and backup its data if necessary.
Image Files
s5p4418-debian-sd4g-YYYYMMDD.img.zip Debian image file with X Window
s5p4418-debian-wifiap-sd4g-YYYYMMDD.img.zip Debian image file with X Window and WiFi configured as AP
s5p4418-kitkat-sd4g-YYYYMMDD.img.zip Android4.4 image file with support for 4G LTE
s5p4418-android-sd4g-YYYYMMDD.img.zip Android5.1 image file
s5p4418-ubuntu-core-qte-sd4g-YYYYMMDD.img.zip Ubuntu core with Qt Embedded
Flash Utility:
win32diskimager.rar Windows utility. Under Linux users can use "dd"
  • Please uncompress these files. Insert an SD card(at least 4G) to a Windows PC, run the win32diskimager utility as administrator，On the utility's main window select your SD card's drive and the image files and click on "write" to start flashing the SD card.
  • Please insert this card to your NanoPi Fire2A and power on (with a 5V/2A power source). If the red LED is on and the green LED is blinking this indicates your NanoPi Fire2A is successfully booted.

4.3.2 Under Linux Desktop

  • 1) Insert your microSD card to your host running Ubuntu and check your SD card's device name
dmesg | tail

Search the messages output by "dmesg" for similar words like "sdc: sdc1 sdc2". If you can find them it means your SD card is recognized as "/dev/sdc". Or you can check that by commanding "cat /proc/partitions".

  • 2) Download Firmware Package
git clone https://github.com/friendlyarm/sd-fuse_nanopi2.git
cd sd-fuse_nanopi2
  • 3) Flash Android Firmware to MicroSD Card
su
./fusing.sh /dev/sdx

(Note: you need to replace "/dev/sdx" with the device name in your system) When you do “git clone” you have to hit “Y” within 10 seconds after it prompts you to download image files otherwise you will miss the download.

  • 4) Flash Debian Firmware to MicroSD Card
./fusing.sh /dev/sdx debian

4.3.3 Extend NanoPi Fire2A's TF Card Section

  • When Debian/Ubuntu is loaded the TF card's section will be automatically extended.
  • When Android is loaded you need to run the following commands on your host PC to extend your TF card's section:
sudo umount /dev/sdx?
sudo parted /dev/sdx unit % resizepart 4 100 resizepart 7 100 unit MB print
sudo resize2fs -f /dev/sdx7

(Note: you need to replace "/dev/sdx" with the device name in your system)

4.3.4 LCD/HDMI Resolution

When system boots our uboot will check whether it is connected to an LCD. If it recognizes an LCD it will configure its resolution. By default our uboot configures the display to HDMI 720P.
If you want to reset the LCD resolution you can modify file "arch/arm/plat-s5p4418/nanopi2/lcds.c" in the kernel and recompile it.
If your NanoPi 2 connects an HDMI monitor and it runs Android it will automatically set the resolution to an appropriate HDMI mode by checking "EDID". If your NanoPi 2 connects an HDMI monitor and it runs Debian by default it will set the resolution to HDMI 720P and in this case you can set it to 1080P by modifying your kernel's configuration.

4.4 Update Image Files in MicroSD Card From PC Host

If you want to make some changes to the image files in your MicroSD card please follow steps below otherwise you can skip this section.
Please insert your MicroSD card to a PC host running LINUX, mount the boot and rootfs sections of the SD card and follow the steps below:

1) If you want to change your kernel command line parameters you can do it via the fw_setevn utility under "sd-fuse_nanopi2/tools"
Check the current Command Line: 

cd sd-fuse_nanopi2/tools
./fw_printenv /dev/sdc | grep bootargs

Android 5.1.1_r6 starts SELinux. By default it is enforcing. You can change it this way: 

./fw_setenv /dev/sdc bootargs XXX androidboot.selinux=permissive

This will set it to "permissive". The "XXX" stands for the original bootargs' value.

2) Update Kernel
Our customized uboot will check the LCD type when it boots.For a non-Android OS If it recognizes an LCD connected to the NanoPi Fire2A it will load "uImage" from "boot" otherwise it will load "uImage.hdmi"
However for Android these two files don't make any differences for whatever display device it detects. You can use your generated uImage to replace the existing one under "boot".
For Debian if your generated kernel is for LCD you need to replace the existing uImage or if your kernel is for HDMI you need to replace the existing uImage.hdmi .

4.5 Run Android or Debian

  • Insert a MicroSD card with Android image files to your NanoPi Fire2A, connect the NanoPi Fire2A to an HDMI monitor and a 5V/2A power source the NanoPi Fire2A will be automatically powered on. If you can see the green LED flashing it means your board is working and you will see Android loading on the HDMI monitor.

1) If you connect the NanoPi Fire2A to an HDMI monitor you need to use a USB mouse and a USB keyboard to operate. If you connect it to an LCD with capacitive touch you can operate directly on the LCD. 2）If you want to do kernel development you'd better have a serial board which allows you to operate the board via a serial terminal.

  • Here is a case in which we connect a NanoPi Fire2A to a PC running Ubuntu and Minicom via a serial cable you will see system messages output to the PC’s minicom terminal:

PSU-ONECOM01

  • Under Debian the password for "root" is "fa".

4.6 Login Debian via VNC or SSH

If your NanoPi Fire2A is not connected to a display device you can download and install a "VNC Viewer" on your PC or mobile phone and login the NanoPi Fire2A via VNC. Its default password is "fa123456". Here is a screenshot which shows how it looks like when users login the NanoPi Fire2A from an iPhone via VNC:
VNC to NanoPi2
You can login via "SSH -l root 192.168.8.1" too and the default password for "root" is "fa".

5 Play with Debian

5.1 Ethernet Connection

If the NanoPi Fire2A is connected to a network via Ethernet before it is powered on it will automatically obtain an IP after it is powered on. If it is not connected via Ethernet or its DHCP is not activated obtaining an IP will fail and system will hang on for about 15 to 60 seconds.

  • 1) Setup MAC Address

The NanoPi Fire2A by default doesn't have a valid MAC address. If the board connects a network successfully it will automatically generates a random MAC in "/etc/network/interfaces.d/eth0". Users can change it to a self-defined valid one: 

vi /etc/network/interfaces.d/eth0

Here is the content of a sample configuration file: 

auto eth0
allow-hotplug eth0
iface eth0 inet dhcp
hwaddress 76:92:d4:85:f3:0f

The "hwaddress" specifies the MAC address. Here the "76:92:d4:85:f3:0f" is a random MAC. We suggest users change it to a valid one
Note: when you reset the MAC please make sure your MAC meets IEEE's definition otherwise it will cause unexpected issues.
After you make your change, save, exit and reboot your board or run the following commands to restart the network: 

systemctl restart networking

5.2 Install Debian Packages

We provide a Debian jessie image. You can install Jessie's packages by commanding "apt-get". If this is your first installation you need to update the package list by running the following command: 

apt-get update

You can install your preferred packages. For example if you want to install an FTP server you can do this: 

apt-get install vsftpd

Note: you can change your download server by editting "/etc/apt/sources.list". You can get a complete server list from [1]. You need to select the one with "armhf".

6 Make Your Own OS Image

6.1 Setup Development Environment

6.2 Install Cross Compiler

Please download the compiler package: 

git clone https://github.com/friendlyarm/prebuilts.git
sudo mkdir -p /opt/FriendlyARM/toolchain
sudo tar xf prebuilts/gcc-x64/arm-cortexa9-linux-gnueabihf-4.9.3.tar.xz -C /opt/FriendlyARM/toolchain/

Then add the compiler's directory to "PATH" by appending the following lines in "~/.bashrc": 

export PATH=/opt/FriendlyARM/toolchain/4.9.3/bin:$PATH
export GCC_COLORS=auto

Execute "~/.bashrc" to make the changes into effect. Please note that there is a space after ".": 

. ~/.bashrc

This compiler is a 64-bit one therefore it cannot be run on a 32-bit LINUX. After the compiler is installed you can verify it by running the following commands: 

arm-linux-gcc -v
Using built-in specs.
COLLECT_GCC=arm-linux-gcc
COLLECT_LTO_WRAPPER=/opt/FriendlyARM/toolchain/4.9.3/libexec/gcc/arm-cortexa9-linux-gnueabihf/4.9.3/lto-wrapper
Target: arm-cortexa9-linux-gnueabihf
Configured with: /work/toolchain/build/src/gcc-4.9.3/configure --build=x86_64-build_pc-linux-gnu
--host=x86_64-build_pc-linux-gnu --target=arm-cortexa9-linux-gnueabihf --prefix=/opt/FriendlyARM/toolchain/4.9.3
--with-sysroot=/opt/FriendlyARM/toolchain/4.9.3/arm-cortexa9-linux-gnueabihf/sys-root --enable-languages=c,c++
--with-arch=armv7-a --with-tune=cortex-a9 --with-fpu=vfpv3 --with-float=hard
...
Thread model: posix
gcc version 4.9.3 (ctng-1.21.0-229g-FA)

6.3 Compile U-Boot

Download the U-Boot source code and compile it. Please note the github's branch is nanopi2-lollipop-mr1: 

git clone https://github.com/friendlyarm/uboot_nanopi2.git
cd uboot_nanopi2
git checkout nanopi2-lollipop-mr1
make s5p4418_nanopi2_config
make CROSS_COMPILE=arm-linux-

After your compilation succeeds a u-boot.bin will be generated. If you want to test it please flash it to your installation MicroSD card via fastboot. Here is how you can do it:
1) On your PC host please run "sudo apt-get install android-tools-fastboot" to install the fastboot utility
2) Connect your NanoPi Fire2A to your PC host via a serial cable (e.g. PSU-ONECOME). Press the enter key within two seconds right after you power on your NanoPi Fire2A and you will enter uboot's command line mode:
3) After type "fastboot" and press "enter" you will enter the fastboot mode:
4) Connect your NanoPi Fire2A to this PC host via a microUSB cable and type the following command to flash the u-boot.bin:

fastboot flash bootloader u-boot.bin


Warning: you cannot update this MicroSD card by commanding "dd". This command which will cause trouble when booting the NanoPi Fire2A.

6.4 Prepare mkimage

You need the mkimage utility to compile a U-Boot source code package. Please make sure this utility works well on your host before you start compiling a uImage.
You can install this utility by either commanding "sudo apt-get install u-boot-tools" or following the commands below: 

cd uboot_nanopi2
make CROSS_COMPILE=arm-linux- tools
sudo mkdir -p /usr/local/sbin && sudo cp -v tools/mkimage /usr/local/sbin

6.5 Compile Linux kernel

6.5.1 Compile Kernel

  • Download Kernel Source Code
git clone https://github.com/friendlyarm/linux-3.4.y.git
cd linux-3.4.y
git checkout nanopi2-lollipop-mr1

The NanoPi Fire2A's kernel source code lies in the "nanopi2-lollipop-mr1" branch.

  • Compile Android Kernel
make nanopi2_android_defconfig
touch .scmversion
make uImage
  • Compile Debian Kernel
make nanopi2_linux_defconfig
touch .scmversion
make uImage

After your compilation succeeds a uImage will be generated in the "arch/arm/boot/uImage" directory. This kernel is for HDMI. You can use it to replace the existing uImage.hdmi
If you want to generate a kernel for LCD you can do it this way: 

touch .scmversion
make nanopi2_linux_defconfig
make menuconfig
  Device Drivers -->
    Graphics support -->
      Nexell Graphics -->
        [*] LCD
        [ ] HDMI
make uImage

After your compilation succeeds a uImage will be generated for LCD. You can use it to replace the existing uImage.

6.5.2 Compile Kernel Modules

Android contains kernel modules which are in the "/lib/modules" directory in the system section. If you want to add your own modules to the kernel or you changed your kernel configurations you need to recompile these new modules.
Compile Original Kernel Modules: 

cd linux-3.4.y
make CROSS_COMPILE=arm-eabi- modules

Here we have two new modules and we can compile them by following the commands below: 

cd /opt/FriendlyARM/s5p4418/android
./vendor/friendly-arm/build/common/build-modules.sh

The "/opt/FriendlyARM/s5p4418/android" directory points to the top directory of Android source code. You can get more details by specifying option "-h".
After your compilation succeeds new modules will be generated

6.6 Compile Android

  • Install Cross Compiler

We recommend installing 64 bit Ubuntu 14.04 on your PC host. 

sudo apt-get install bison g++-multilib git gperf libxml2-utils make python-networkx zip
sudo apt-get install flex libncurses5-dev zlib1g-dev gawk minicom

For more details please refer to https://source.android.com/source/initializing.html 。

  • Download Source Code(Android 5.1)

You need to use repo to get the Android source code. Please refer to https://source.android.com/source/downloading.html 。 

mkdir android && cd android
repo init -u https://github.com/friendlyarm/android_manifest.git -b nanopi2-lollipop-mr1
repo sync

The "android" directory is the working directory.

If you want to try Android4.4's source code you can run the following commands: 

mkdir android && cd android
repo init -u https://github.com/friendlyarm/android_manifest.git -b nanopi2-kitkat
repo sync

Option "-b" specifies a branch

  • Compile System Package
source build/envsetup.sh
lunch aosp_nanopi2-userdebug
make -j8

After your compilation succeeds the following files will be generated in the "out/target/product/nanopi2/" directory.

filename partition Description
boot.img boot -
cache.img cache -
userdata.img userdata -
system.img system -
partmap.txt - partition description file
  • Flash Image to TF Card

If you want to boot your board from a TF card you can copy your generated image files to your card's sd-fuse_nanopi2/android/ direcroty and flash the image to the card with our script. For more details refer to #Under Linux Desktop.

7 Connect NanoPi Fire2A to External Modules

7.1 Connect NanoPi Fire2A to USB Camera(FA-CAM202)

  • In this usecase the NanoPi Fire2A runs Debian. If you connect your NanoPi Fire2A to our LCD after Debain is fully loaded please click on "other"-->"xawtv" on the left bottom of the GUI and the USB Camera application will be started. After enter "welcome to xawtv！" please click on "OK" to start exploring.

USB camera USB camera-01

7.2 Connect NanoPi Fire2A to CMOS 5M-Pixel Camera

For more details about the CAM500B camera refer to [2]

  • If your NanoPi Fire2A runs Android5.1 and it is connected to our LCD or an HDMI monitor after Android is fully loaded click on the "Camera" icon and the application will be started. You can take pictures or record videos

CMOS camera

  • Under Debian/Ubuntu a camera utility "nanocams" is available for previewing 40 frames and picture taking. You can try it by following the commands below
sudo nanocams -p 1 -n 40 -c 4 -o IMG001.jpg

For more details about the usage of the nanocams run "nanocams -h". You can get its source code from our git hub: 

git clone https://github.com/friendlyarm/nexell_linux_platform.git

7.3 Use OpenCV to Access USB Camera

  • The full name of "OpenCV" is Open Source Computer Vision Library and it is a cross platform vision library.
  • When the NanoPi Fire2A runs Debian users can use OpenCV APIs to access a USB Camera device.

1. Here is a guideline on how to use OpenCV with C++ on the NanoPi Fire2A:

  • Firstly you need to make sure your NanoPi Fire2A is connected to the internet.Login to your NanoPi Fire2A via a serial terminal or SSH. After login type in your username(root) and password(fa):
  • Run the following commands:
apt-get update
apt-get install libcv-dev libopencv-dev

2. Make sure your USB camera works with the NanoPi Fire2A. You can test your camera with NanoPi Fire2A's camera utility.

3. Check your camera device: 

ls /dev/video*
  • Note:in our case "video0" was the camera's device name.

4. OpenCV's code sample（Official Code Sample in C++) under /home/fa/Documents/opencv-demo. You can compile it by running the following command: 

cd /home/fa/Documents/opencv-demo
make

If it is compiled successfully a demo executable will be generated

5. Connect NanoPi Fire2A to a USB Keyboard & Run the Following Command: 

./demo

OpenCV-Fire

7.4 Connect NanoPi Fire2A to USB WiFi

  • Click on here to enter the kernel compilation [3]

7.5 Connect NanoPi Fire2A to Matrix GPS Module

  • The Matrix-GPS module is a small GPS module with high performance. It can be used in navigation devices, four-axle drones and etc.
  • The Matrix-GPS module uses serial communication. When the NanoPi Fire2A is connected to the Matrix GPS module, after the NanoPi Fire2A is powered up type in the following command in a terminal or click on the xgps icon it will be started.
$su - fa -c "DISPLAY=:0 xgps 127.0.0.1:9999"
  • Or on the Debian GUI start the LXTerminal, type in "xgps" and enter it will be started too.

For more details about this GPS module refer to this link
Refer to the following diagram to connect the NanoPi Fire2A to the Matrix-GPS:
GPS_NanoPi_2_Fire

Connection Details:

Matrix-GPS NanoPi Fire2A
RXD Pin8
TXD Pin10
5V Pin4
GND Pin6

7.6 Connect NanoPi Fire2A to I2C Device

  • The Matrix-I2C_LCD1602_Keypad module is an easy-to-use display module based on the LCD1602. This module integrates the LCD1602 and the MCP23017 module. It has five programmable keys which allow users to control the LCD1602's display and external devices connected to the module.
  • The MCP23017 communicates through I2C interface. You can learn how the NanoPi Fire2A communicates to an I2C device by studying this module.

For more details about the Matrix - I2C LCD1602 Keypad refer to this link
Refer to the following diagram to connect the NanoPi Fire2A to the Matrix-I2C_LCD1602_Keypad:
matrix-i2c_lcd1602_keypad_nanopi

Connection Details:

Matrix-I2C_LCD1602_Keypad NanoPi Fire2A
SDA Pin3
SCL Pin5
5V Pin4
GND Pin6

7.7 Connect NanoPi Fire2A to SPI Device

  • The Matrix-2'8_SPI_Key_TFT module is a 2.8" TFT LCD module. It uses the ST7789S IC and the XPT2046 resistive IC. The LCD's resolution is 320 * 240 and communicates via SPI. It has three programmable user keys.

For more details about the Matrix-2'8_SPI_Key_TFT SPI module refer to this link
Refer to the following diagram to connect the NanoPi Fire2A to the Matrix-2'8_SPI_Key_TFT module:
Matrix-2'8_SPI_Key_TFT_nanopi2

Connection Details

Matrix-2'8_SPI_Key_TFT NanoPi Fire2A
GND Pin6
5V Pin2
LED_EN Pin11
LCD_RESET Pin7
LCD_D/C Pin22
LCD_CS Pin24
SPICLK Pin23
SPIMOSI Pin19
SPIMISO Pin21
T_CS Pin26
T_IRQ Pin18

8 Android Hardware Access

FriendlyElec developed a library called “libfriendlyarm-hardware.so”, for android developer to access the hardware resources on the development board in their android apps, the library is based on Android NDK.
Accessible Modules：

  • Serial Port
  • PWM
  • EEPROM
  • ADC
  • LED
  • LCD 1602 (I2C)
  • OLED (SPI)

Accessible Ports：

  • GPIO
  • Serial Port
  • I2C
  • SPI

Please refer to the following url for details：

9 More OS Support

9.1 Ubuntu-Core with Qt-Embedded

Ubuntu Core with Qt-Embedded is a light Linux system without X-windows. It uses the Qt-Embedded's GUI and is popular in industrial and enterprise applications. Besides the regular Ubuntu core's features our Ubuntu-Core has the following additional features:

  • it supports our LCDs with both capacitive touch and resistive touch(S700, X710, S70)
  • it supports WiFi
  • it supports Ethernet
  • it supports Bluetooth and has been installed with bluez utilities
  • it supports audio playing

For more details refer to Ubuntu Core with Qt-Embedded.

9.2 Ubuntu-Mate

  • Please go to this link [4] to download the image files
  • Please uncompress it and flash the image file to a TF card with win32diskimager under Windows
  • After it is done you can boot your NanoPi Fire2A with this card
  • Login name: "root" or "fa", Password: fa

Note: this UbuntuMate works with both NanoPi 2 and NanoPi Fire2A

9.3 Kali

  • Please go to this link [5] to download the image files
  • Please prepare an 8G High Speed MicroSD card, insert it to a Linux host and do "sudo fdisk -l" to check its device name, i.e. "/dev/sd*"
  • Please copy the image files to the card by running the following commands as root:
xzcat kali-2.0-nanopi2.img.xz | dd of=<YOURDEVICE> bs=1m
  • After it is done you can boot your NanoPi Fire2A with this card.

Note: this is offered by Kali and FriendlyElec doesn't provide technical support for it.

9.4 Android-Remixos

Go to this link [6] to download the image files;

  • Untar the image ball:
tar -xf nanopi2-android-remixos-sd4g.tar
  • Use the win32diskimager utility to flash the image to a MicroSD card.

It supports HDMI and LCD output and works with all existing FriendlyElec 4418 based boards.
Note: this is offered by Remix team and FriendlyElec doesn't provide technical support for it.

10 FAQ

  • Common Issues
Where to download image files? The NanoPi Fire2A has a wiki site which has all the necessary information and details about everything. Its link is :http://wiki.friendlyarm.com/wiki/index.php/NanoPi_Fire2A
After the board is powered on the red LED is not on 1. The power is not enough or instable. A 5V/2A power is a must;

2. The TF card is not a high speed one. Please use an 8G (or above) microSD Card/TFCard, Class 10 (or Above);
3. Please try our latest image files;
4. Please contact our techsupport at techsupport@friendlyarm.com

After the board is powered on the green LED is on but not blinking 1. The power is not enough or instable. A 5V/2A power is a must;

2. The TF card is not a high speed one. Please use an 8G (or above) microSD Card/TFCard, Class 10 (or Above);
3. Please try our latest image files

When the board doesn’t connect any display device it can boot normally and output system messages to the serial port. However when it connects an LCD the LCD doesn’t display anything or reboots frequently before it fully loads an OS. 1. The power is not enough or instable. A 5V/2A power is a must;

2. Please check whetherthe FPC cable is properly connected or whether it is broken or not;
3. Please connect the board to a PC via a serial cable and check whether the LCD is recognized by the board.

When the board doesn’t connect an LCD it can boot normally and output system messages to the serial port. However when it connects an HDMI monitor the monitor doesn’t display anything 1. You can try connecting your board to a monitor with DVI interface with an HDMI to DVI cable

2. Please use a monitor which has an HDMI interface

When the board runs Debian HDMI doesn’t have audio output Our Debian system currently doesn’t support HDMI audio because we didn’t include HDMI’s audio package
When the board runs Android HDMI doesn’t support volume control. Our Android system currently doesn’t support HDMI’s volume control. Users can adjust it via a remote control

11 Source Code and Image Files Download Links

  • Image File: [7]
  • Source Code: [8]

11.1 Resources

12 External Links

13 Update Log

13.1 Oct-19-2017

  • Released English version

13.2 Oct-24-2017

  • Corrected typos
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