2015-04-08 16:21:16 +02:00
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Banana Pi/Pro {#bananapi}
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============
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The Banana Pi/Pro is a clone of the well known Raspberry Pi. It has advantages
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compared to the 'old' Raspberry Pi A/B/A+/B+ devices as it is based on the
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Allwinner A20 Dual Core Cortex-A7. It also has 1G Ethernet compared to 100M
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Ethernet on the Raspberry.
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There is a lot of effort on Mainline Kernel to fully support the Allwinner
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Chips, for example Fedora 22 Arm will come with support for BananaPi/Pro which
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means that you will be able to have HDMI Output and a number of periperal
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modules work out of the box.
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Pin-wise the Banana Pi matches the Raspberry Pi, the Banana Pro has a connector
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similar to the Raspberry Pi A+/B+
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Revision Support
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----------------
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Banana Pi
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Banana Pro
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Interface notes
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---------------
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**PWM** Whilst the Banana Pi is meant to have 1 PWM channel this is currently
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not supported.
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**SPI** works fine when used with old 3.4 Kernels provided by Lemaker, on
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Mainline Kernel SPI does currently not work
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**COM** I have created devicetree patches so that Mainline Kernel supports all
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COM-Interfaces, this is not yet visible in Kernel
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Mainline Kernel requires the use of Device-Trees, mraa tries it's best to guess
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which gpio/serial/i2c/spi is connected where but there is currently no support
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to manipulate the Device-Tree settings from within mraa. If a device does not
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work as expected then please check syslog, mraa usually complains with a
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meaningful message when it is unable to initialize the device.
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Pin Mapping
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-----------
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This pin mapping refers to the Banana Pi but gives an idea
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as to what the values are from mraa. Note that there is an emum to use wiringPi
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style numbers.
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| MRAA Number | Physical Pin | Function |
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|-------------|--------------|-----------|
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| 1 | P1-01 | 3V3 VCC |
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| 2 | P1-02 | 5V VCC |
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| 3 | P1-03 | I2C SDA |
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| 4 | P1-04 | 5V VCC |
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| 5 | P1-05 | I2C SCL |
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| 6 | P1-06 | GND |
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| 7 | P1-07 | GPIO(PI03)|
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| 8 | P1-08 | UART4 TX |
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| 9 | P1-09 | GND |
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| 10 | P1-10 | UART4 RX |
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| 11 | P1-11 | GPIO(PI19)|
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| 12 | P1-12 | GPIO(PH02)|
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| 13 | P1-13 | GPIO(PI18)|
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| 14 | P1-14 | GND |
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| 15 | P1-15 | GPIO(PI17)|
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| 16 | P1-16 | GPIO(PH20)|
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| 17 | P1-17 | 3V3 VCC |
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| 18 | P1-18 | GPIO(PH21)|
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| 19 | P1-19 | SPI MOSI |
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| 20 | P1-20 | GND |
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| 21 | P1-21 | SPI MISO |
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| 22 | P1-22 | GPIO(PI16)|
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| 23 | P1-23 | SPI SCL |
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| 24 | P1-24 | SPI CS0 |
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| 25 | P1-25 | GND |
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| 26 | P1-26 | SPI CS1 |
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There is also a second 8-pin connector on the Banana Pi, the pins are as follows:
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2016-05-18 15:28:16 -03:00
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| MRAA Number | Physical Pin | Function |
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|-------------|--------------|-----------|
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2015-04-08 16:21:16 +02:00
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| 27 | P1-19 | 5V VCC |
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| 28 | P1-20 | 3V3 VCC |
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| 29 | P1-21 | GPIO(PH5) |
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| 30 | P1-22 | GPIO(PI22)|
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| 31 | P1-23 | GPIO(PH03)|
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| 32 | P1-24 | GPIO(PI20)|
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| 33 | P1-25 | GND |
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| 34 | P1-26 | GND |
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