Difference between revisions of "Matrix - Compact Kit"
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Generated library files are under the "install/lib" directory. The test program is under the "install/usr/bin" directory. The modules are under the "modules" directory<br> | Generated library files are under the "install/lib" directory. The test program is under the "install/usr/bin" directory. The modules are under the "modules" directory<br> | ||
| − | === | + | ===Copy Test Program=== |
| − | + | Please insert a TF card which is flashed with Debian to a Linux host and mount its boot and rootfs sections.<br> | |
| − | + | We assume the rootfs is mounted to /media/rootfs then please run the following commands to copy the module, library and test program to the card<br> | |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
$ cp modules /media/rootfs/ -r | $ cp modules /media/rootfs/ -r | ||
Revision as of 10:42, 30 December 2015
Contents
1 Introduction
- The Matrix-Compact Kit is a compact board with various hardware resources, interfaces and ports including user button, LED, buzzer, ADC, compass, temperature sensor, IR receiver, TFT port and etc. This board can be connected to the NanoPi, NanoPi 2 and Raspberry Pi via its 40 pin header. In addition you can connect other external modules to its GPIOs.
2 Features
Matrix - Compact Kit has the following onboard resources:
- 0.9 TFT LCD
- 3 x tact switch
- 4 x 5mm LED
- Buzzer
- ADC
- Sliding rheostat
- 40 pin female connector
- 4 pin header - I2C interface
- 4 pin header - UART interface
- 3 pin double row pin-header - 3.3V and GND
- 18B20 temperature sensor
- IR receiver
- 10 x 3 pin header - 3 x AIO, 7 x DIO (two of them can be configured to PWM and four of them can be configured to SPI)
- Compass
3 Dimensional Diagram and Pin Description
- PCB Dimension(mm):
- 40 pin female connector's pin description
Pin# Name Pin# Name 1 VDD_SYS_3.3V 2 VDD_5V 3 I2C0_SDA 4 VDD_5V 5 I2C0_SCL 6 DGND 7 GPIOB28 8 UART3_TXD 9 DGND 10 UART3_RXD 11 GPIOB29 12 GPIOB26 13 GPIOB30 14 DGND 15 GPIOB31 16 PWM2 17 VDD_SYS_3.3V 18 GPIOB27 19 SPI0_MOSI 20 DGND 21 SPI0_MISO 22 PWM0 23 SPI0_CLK 24 SPI0_CS 25 DGND 26 PWM1 27 I2C1_SDA 28 I2C1_SCL 29 GPIOC8 30 DGND 31 SPI2_CLK 32 GPIOC28 33 SPI2_CS 34 DGND 35 SPI2_MOSI 36 GPIOC7 37 SPI2_MISO 38 ALIVEGPIO2 39 DGND 40 ALIVEGPIO3
- 30 pin header's pin description
Pin# Name Pin# Name Pin# Name 1 GND 2 VDD_5V 3 A1_PCF 4 GND 5 VDD_5V 6 A2_PCF 7 GND 8 VDD_5V 9 A3_PCF 10 GND 11 VDD_5V 12 D1_Pi11 13 GND 14 VDD_5V 15 D2_Pi26 16 GND 17 VDD_5V 18 D3_Pi16 19 GND 20 VDD_5V 21 D4_Pi19 22 GND 23 VDD_5V 24 D5_Pi21 25 GND 26 VDD_5V 27 D6_Pi23 28 GND 29 VDD_5V 30 D7_Pi24
- 18B20 and IR receiver's pin description
Pin# Name Pin# Name Pin# Name 1 VDD_5V 2 DATA 3 GND 1 DATA 2 GND 3 VDD_5V
4 Download Matrix Source Code
All the matrix modules' code samples are open source. They are maintained on GitHub: https://github.com/friendlyarm/matrix.git
Each branch in this hub contains the matrix modules' code samples for a board that the matrix modules can work with
- The matrix-nanopi branch contains the matrix modules' code samples for the NanoPi
- The matrix-nanopi2 branch contains the matrix modules' code samples for the NanoPi 2
- The matrix-tiny4412 branch contains the matrix modules' code samples for the Tiny4412;
- The matrix-raspberrypi branch contains the matrix modules' code samples for the RaspberryPi;
Please follow the steps below to get the source code:
Install the git utility on a PC running Ubuntu14.04
$ sudo apt-get install git
Clone the matrix code from GitHub
$ git clone https://github.com/friendlyarm/matrix.git
If this is successful a "matrix" directory will be generated, which will contain all the matrix modules' code samples.
5 Connect to NanoPi 2
5.1 Hardware Connection
Please refer to the following connection diagram to connect the Matrix-Compact_Kit to the NanoPi 2:
5.2 Compile Test Program
Please login the matrix hub and enter the nanopi2 branch
$ cd matrix $ git checkout nanopi2
Compile the Matrix code
$ make CROSS_COMPILE=arm-linux- clean $ make CROSS_COMPILE=arm-linux- $ make CROSS_COMPILE=arm-linux- install
Note: please make sure to install the cross compiler "arm-linux-gcc-4.9.3" on your PC, which is used to compile files for the NanoPi 2.
Generated library files are under the "install/lib" directory. The test program is under the "install/usr/bin" directory. The modules are under the "modules" directory
5.3 Copy Test Program
Please insert a TF card which is flashed with Debian to a Linux host and mount its boot and rootfs sections.
We assume the rootfs is mounted to /media/rootfs then please run the following commands to copy the module, library and test program to the card
$ cp modules /media/rootfs/ -r $ cp install/lib/* /media/rootfs/lib/ -d $ cp install/usr/bin/* /media/rootfs/usr/bin/
5.4 测试LCD显示
将SD卡重新插入NanoPi 2，上电启动，在Debian的shell终端中执行以下命令。
$ cd /modules $ insmod fbtft_device.ko name=matrix-st7735s gpios=dc:58,reset:63,cs:59 $ sudo FRAMEBUFFER=/dev/fb-st7735s startx &
fbtft_device是LCD驱动，成功加载驱动后，可以看到LCD被清屏。
startx命令会将1寸屏作为桌面显示设备，运行效果如下：
5.5 测试AD转换
执行以下命令获得Channel 0的AD转换值：
$ matrix-adc通过旋转可调电阻可以改变AD转换值，运行效果如下：
5.6 测试指南针
执行以下命令获得当前方向：
$ matrix-compass通过改变开发板的朝向可以获得不同的方向值，运行效果如下：
5.7 读按键值
| 按键 | CPU GPIO | linux索引号 |
| KEY1 | GPIOC7 | 71 |
| KEY2 | ALIVEGPIO2 | 162 |
| KEY3 | ALIVEGPIO3 | 163 |
以KEY1为例，执行以下命令读取按键值：
$ cd /sys/class/gpio/ $ echo 71 > export $ echo in > gpio71/direction $ cat gpio71/value
当KEY1按下时value=0，KEY1弹起时value=1。
5.8 控制LED
| LED | CPU GPIO | linux索引号 |
| LED1 | GPIOC10 | 74 |
| LED2 | GPIOC9 | 73 |
| LED3 | GPIOC11 | 75 |
| LED4 | GPIOC12 | 76 |
以LED1为例，执行以下命令控制LED：
$ cd /sys/class/gpio/ $ echo 74 > export $ echo out > gpio74/direction $ echo 1 > gpio74/value
1表示点亮LED1,0表示熄灭LED1。
6 与NanoPi连接使用
7 与Tiny4412连接使用
8 与RaspberryPi连接使用
9 与Arduino连接使用
10 相关资料
- [Schematic]()
