nanopi_duo_gpio_pyH3

Python control of NanoPi-Duo GPIO (Allwinner H3) based on pyA20 0.2.1 When using GPIO make sure that the desired gpio is not used by another periphery.

references: https://www.olimex.com/wiki/A20-OLinuXino-MICRO https://pypi.python.org/pypi/pyA20

install

python setup.py install 

GPIO mapping

PG6	TX1, UART1 TX
PG7	RX1, UART1 RX
PA15 	SPI1-MOSI
PA16 	SPI1-MISO
PA14 	SPI1-CLK
PA13 	SPI1-CS
PA12 	I2C0-SDA
PA11 	I2C0-SCL
PA4  	DTX, UART0 TX debug
PA5  	DRX, UART0 RX debug
PG11 	GPIO G11
PL11 	IRRX, IrDa RX

LEDs mapping (based on schematics)

PL10	Power LED
PA10	Status LED

Button mapping (based on schematics)

PL3	Button

GPIO METHODS

init()      -   Make initialization of the module. Always must be called first.
getcfg()    -   Read current configuration of gpio.
setcfg()    -   Write configuration to gpio.
input()     -   Return current value of gpio.
output()    -   Set output value.
pullup()    -   Set pull-up/pull-down.

The available constants are:

NAME        -   EQUALS TO
====            =========
HIGH        ->      1
LOW         ->      0
INPUT       ->      0
OUTPUT      ->      1
PULLUP      ->      1
PULLDOWN    ->      2

I2C METHODS

init()      -   Make initialization of the module
open()      -   Begin communication with slave device
read()      -   Read from slave device
write()     -   Write data to slave device
close()     -   End communication with slave device

SPI METHODS

open()      -   Open SPI bus with given configuration
read()      -   Read data from slave device without write
write()     -   Write data to slave device without read
xfer()      -   Do write and after that read
close()     -   Close SPI bus