RockpiX/dev/libmraa - Revision history

Cx at 07:42, 10 May 2022

2022-05-10T07:42:20Z

Ken at 06:54, 23 September 2021

2021-09-23T06:54:02Z

Ken: /* Install libmraa */

2021-09-22T07:35:07Z

‎Install libmraa

Ken: /* Install libmraa */

2021-09-18T08:45:11Z

‎Install libmraa

Ken: /* Install libmraa */

2021-09-18T02:37:51Z

‎Install libmraa

Stephen: /* Install libmraa */

2021-06-18T13:04:19Z

‎Install libmraa

Shine at 03:52, 25 November 2020

2020-11-25T03:52:49Z

Shine: Created page with "注意：还差spi与pwm1未调试通过，并且缺少adc，GPIO_DFX3异常关闭。 {{RockpiX_header}} {{Languages|RockpiX/dev/libmraa}} ROCK Pi X > Ro..."

2020-11-25T03:52:34Z

Created page with "注意：还差spi与pwm1未调试通过，并且缺少adc，GPIO_DFX3异常关闭。 {{RockpiX_header}} {{Languages|RockpiX/dev/libmraa}} ROCK Pi X > Ro..."

New page

注意：还差spi与pwm1未调试通过，并且缺少adc，GPIO_DFX3异常关闭。

{{RockpiX_header}}
{{Languages|RockpiX/dev/libmraa}}

[[rockpiX | ROCK Pi X]] > [[RockpiX/dev/libmraa | Libmraa]]

= Libmraa-rockpiX =

== Install libmraa ==

We need to download the deb installation package first, and then install it:

vms@vms-ROCK-Pi-X:~$ wget https://dl.radxa.com/rockpix/packages/libmraa-rockpix.deb
vms@vms-ROCK-Pi-X:~$ sudo dpkg -i libmraa-rockpix.deb
vms@vms-ROCK-Pi-X:~$ sudo apt-get install -f -y

== Enable interface ==
See ROCK Pi X [[RockpiX/hardware/gpio | GPIO pintout]]. ROCK Pi X has one 40-pin expansion header. Each pin is distinguished by color.

=== Hardware V1.0/V1.1 ===
10 GPIO:
PIN7 ISH_GPIO0
PIN12 GPIO_DFX3
PIN16 GPIO_DFX4
PIN21 ISH_GPIO9
PIN24 ISH_GPIO1
PIN26 ISH_GPIO4
PIN29 ISH_GPIO2
PIN31 ISH_GPIO3
PIN33 ISH_GPIO10
PIN37 ISH_GPIO13

I2C: x1, I2C1
PIN3 I2C2_SDA
PIN5 I2C2_SCL
PIN19 ISH_I2C1_DATA
PIN23 ISH_I2C1_CLK

SPI: x1, SPI0(Pin#11/13/15/27)
PIN11 SPI2_CLK
PIN13 SPI2_MISO
PIN15 SPI2_CS0
PIN16 SPI2_MOSI

UART: x1, UART1 and UART2
PIN8 UART2_TX
PIN10 UART2_RX
PIN18 UART2_RTS
PIN22 UART2_CTS

PWM: x2, PWM0 and PWM1
PIN32 PWM0
PIN33 PWM1

== Test ==
=== test gpio ===
Use '''mraa-gpio''' to test

vms@vms-ROCK-Pi-X:~$ mraa-gpio list
01 3.3v:
02 5v:
03 I2C2_SDA: I2C
05 I2C2_SCL: I2C
06 GND:
07 ISH_GPIO0: GPIO I2C
08 UART2_TX: UART
09 GND:
10 UART2_RX: UART
11 SPI2_CLK: SPI UART
12 GPIO_DFX3: GPIO
13 SPI2_MISO: SPI UART
14 GND:
15 SPI2_CS0: SPI
16 SPI2_MOSI: GPIO SPI
17 +3.3V:
18 UART2_RTS: UART
19 SPI_MOSI: I2C SPI
20 GND:
21 SPI_MISO: GPIO SPI
22 UART2_CTS: UART
23 SPI_CLK: I2C SPI
24 ISH_GPIO1: GPIO
25 GND:
26 ISH_GPIO4: GPIO
27 I2C5_DATA: I2C
28 I2C5_CLK: I2C
29 ISH_GPIO2: GPIO
31 ISH_GPIO3: GPIO
32 PWM0: PWM
33 PWM1: GPIO PWM UART
34 GND:
35 I2S1_FRM:
36 I2S1_CLK:
37 ISH_GPIO13: GPIO
38 I2S1_RX:
39 GND:
40 I2S1_TX:
vms@vms-ROCK-Pi-X:~$
vms@vms-ROCK-Pi-X:~$ sudo mraa-gpio set 7 1 //pin40 pull high
vms@vms-ROCK-Pi-X:~$ cat /sys/class/gpio/gpio335/value
1
vms@vms-ROCK-Pi-X:~$ sudo mraa-gpio set 7 0 //pin40 pull low
vms@vms-ROCK-Pi-X:~$ cat /sys/class/gpio/gpio335/value
0

=== test i2c ===
Use '''mraa-i2c''' to test, we must have a i2c slave device , for example, we use I2C EEPROM:

vms@vms-ROCK-Pi-X:~$ mraa-i2c list
Bus 0: id=02 type=linux default
Bus 1: id=05 type=linux
vms@vms-ROCK-Pi-X:~$ sudo mraa-i2c detect 0
00: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- 18 -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: 50 51 52 53 54 55 56 57 -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
vms@vms-ROCK-Pi-X:~$ sudo mraa-i2c set 0 0x50 0x10 0x55
Device 50, Register = 10, Value = 55
vms@vms-ROCK-Pi-X:~$ sudo mraa-i2c get 0 0x50 0x10
Register 0X10 = 0X55
vms@vms-ROCK-Pi-X:~$

=== test Uart ===
Connect Rock Pi X to PC via serial cable, Open minicom in PC :

PC@MYPC:~$ sudo minicom /dev/ttyUSB0

Use mraa-uart tool to send information on rockpix, and view the received information on pc :

* On Rock Pi X

vms@vms-ROCK-Pi-X:~$ sudo mraa-uart dev 0 baud 1500000 send data

* In minicom of PC

Welcome to minicom 2.7.1

OPTIONS: I18n
Compiled on Aug 13 2017, 15:25:34.
Port /dev/ttyUSB0, 10:22:25

Press CTRL-A Z for help on special keys

'''data'''

== Compilation example ==
=== Install compiler and project builder ===
Install '''g++''' compiler and '''cmake''' project builder

vms@vms-ROCK-Pi-X:~$ sudo apt-get install cmake g++

Configure Java environment variables :

vms@vms-ROCK-Pi-X:~$ sudo su #password: rock
vms@vms-ROCK-Pi-X:~# vim ./.bashrc
...
export JAVA_HOME=/usr/lib/jvm/java-1.11.0-openjdk-arm64
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

vms@vms-ROCK-Pi-X:~# source ./.bashrc
vms@vms-ROCK-Pi-X:~# cp /usr/local/share/mraa . -r
vms@vms-ROCK-Pi-X:~# cd mraa/examples/
vms@vms-ROCK-Pi-X:~/mraa/examples# mkdir build
vms@vms-ROCK-Pi-X:~/mraa/examples# cd build
vms@vms-ROCK-Pi-X:~/mraa/examples/build# cmake ..; make
...
[ 97%] Building CXX object c++/CMakeFiles/i2c_cpp.dir/i2c.o
[100%] Linking CXX executable i2c_cpp
[100%] Built target i2c_cpp
vms@vms-ROCK-Pi-X:~/mraa/examples/build# ls
CMakeCache.txt CMakeFiles Makefile '''c''' '''c++''' cmake_install.cmake '''java'''

After compiling, you can see that C, C + + and Java are generated. Let's take a look at the example of using Java.

=== Example of running Java ===
Go to the Java example directory and use the Java command to run the '''.jar''' package.<br/>

vms@vms-ROCK-Pi-X:~/mraa/examples/build# cd java/
vms@vms-ROCK-Pi-X:~/mraa/examples/build/java# ls
AioA0 CMakeFiles GpioMmapped Isr UartExample
BlinkIO CyclePwm3 GpioRead6 Makefile cmake_install.cmake
BlinkOnboard Example HelloEdison SpiMAX7219
Bmp85 FTDITest I2cCompass SpiMCP4261
vms@vms-ROCK-Pi-X:~/mraa/examples/build/java# java -jar GpioMmapped/GpioMmapped.jar
hello mraa
Version: v2.1.0-7-g9d7131e
Platform: ROCK PI X

Look, you have successfully run it. Next, you can try to write a Java demo yourself. Viewing these '''.hpp''' files can help you write '''your own demo'''

vms@vms-ROCK-Pi-X:/usr/local/include/mraa# ls
aio.h gpio.h iio.hpp led.hpp types.h uart_ow.hpp
aio.hpp gpio.hpp iio_kernel_headers.h pwm.h types.hpp
common.h i2c.h initio.h pwm.hpp uart.h
common.hpp i2c.hpp initio.hpp spi.h uart.hpp
firmata.h iio.h led.h spi.hpp uart_ow.h
vms@vms-ROCK-Pi-X:/usr/local/include/mraa#

=== More examples ===
More examples (including examples written in python and c++) can be found at:

/usr/local/share/mraa/examples/

@@ Line 14: / Line 14: @@
   vms@vms-ROCK-Pi-X:~$ wget https://dl.radxa.com/rockpix/packages/libmraa-rockpix_0.4_amd64.deb
   vms@vms-ROCK-Pi-X:~$ sudo apt install -f -y libc6 libjson-c4  libjson-c-dev libgtest-dev  libgcc1 libstdc++6 python2.7 libpython2.7 python3.8 libpython3.8
-  vms@vms-ROCK-Pi-X:~$ sudo dpkg -i libmraa-rockpix_0.3_amd64.deb
+  vms@vms-ROCK-Pi-X:~$ sudo dpkg -i libmraa-rockpix_0.4_amd64.deb
   vms@vms-ROCK-Pi-X:~$ sudo apt-get install -f -y

@@ Line 12: / Line 12: @@
   vms@vms-ROCK-Pi-X:~$ sudo apt update && sudo apt upgrade
-  vms@vms-ROCK-Pi-X:~$ wget https://dl.radxa.com/rockpix/packages/libmraa-rockpix_0.3_amd64.deb
+  vms@vms-ROCK-Pi-X:~$ wget https://dl.radxa.com/rockpix/packages/libmraa-rockpix_0.4_amd64.deb
   vms@vms-ROCK-Pi-X:~$ sudo apt install -f -y libc6 libjson-c4  libjson-c-dev libgtest-dev  libgcc1 libstdc++6 python2.7 libpython2.7 python3.8 libpython3.8
   vms@vms-ROCK-Pi-X:~$ sudo dpkg -i libmraa-rockpix_0.3_amd64.deb

@@ Line 13: / Line 13: @@
   vms@vms-ROCK-Pi-X:~$ sudo apt update && sudo apt upgrade
   vms@vms-ROCK-Pi-X:~$ wget https://dl.radxa.com/rockpix/packages/libmraa-rockpix_0.3_amd64.deb
   vms@vms-ROCK-Pi-X:~$ sudo dpkg -i libmraa-rockpix_0.3_amd64.deb
   vms@vms-ROCK-Pi-X:~$ sudo apt-get install -f -y

@@ Line 11: / Line 11: @@
 We need to download the deb installation package first, and then install it:
   vms@vms-ROCK-Pi-X:~$ wget https://dl.radxa.com/rockpix/packages/libmraa-rockpix_0.3_amd64.deb
   vms@vms-ROCK-Pi-X:~$ sudo dpkg -i libmraa-rockpix_0.3_amd64.deb

← Older revision		Revision as of 03:52, 25 November 2020
Line 1:		Line 1:
−	~~注意：还差spi与pwm1未调试通过，并且缺少adc，GPIO_DFX3异常关闭。~~
−
	{{RockpiX_header}}		{{RockpiX_header}}
	{{Languages\|RockpiX/dev/libmraa}}		{{Languages\|RockpiX/dev/libmraa}}

@@ Line 151: / Line 151: @@
 == Compilation example ==
 === Install compiler and project builder ===
 Install '''g++''' compiler and '''cmake''' project builder