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This is a port of popular nRF24L01(+) library RF24 for Allwinner A10/A20 devices.

To build sun7i (a20) version, type

make librf24-sun7i

To build sun4i (a10) version, type

make librf24-sun4i

To install library, type

    sudo make install

To make tests, type

	cd test/
	make

Tests description

scanner.cpp Example to detect interference on the various channels available. This is a good diagnostic tool to check whether you're picking a good channel for your application.
pingtest.cpp Examples sends data to a client, which receives it and then sends back. Refer to arduino/pingtest.pde for a sample arduino client.
arduino_rcv.cpp This example receives incrementing counter value from Arduino node (arduino/arduino_send.pde)
arduino_rcv_irq.cpp Similar to arduino_rcv, but this sample uses IRQ pin through GPIO to reduce CPU usage.

Wiring and configuration for Cubieboard 2

All tests by default use /dev/spidev0.0 device and assume the following connectionof the NRF24L01 module to the Cubieboard:

NRF24L01 pin -> Cubiboard 2 pin

1 GND -> 45 GND
2 3.3V -> 44 3.3V
3 CE -> 41, PB13
4 CSN -> 40, PB10
5 SCK -> 47, PI11
6 MOSI -> 46, PI12
7 MISO -> 48, PI13
8 IRQ -> 37, PH7 (optional, for the sample that uses IRQ)

script.fex configuration

[spi0_para]
spi_used = 1
spi_cs_bitmap = 1
spi_cs0 = port:PI10<2><default><default><default>
spi_cs1 = port:PI14<2><default><default><default>
spi_sclk = port:PI11<2><default><default><default>
spi_mosi = port:PI12<2><default><default><default>
spi_miso = port:PI13<2><default><default><default>

[spi_devices]
spi_dev_num = 1

[spi_board0]
modalias = "spidev"
max_speed_hz = 12000000
bus_num = 0
chip_select = 0
mode = 0
full_duplex = 1
manual_cs = 0

[gpio_para]
gpio_num = 8
...
gpio_pin_8 = port:PH7<1><default><default><default>

mplatov/librf24-sunxi

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Tests description

Wiring and configuration for Cubieboard 2