org.teamneko.softspi

Class SoftSPI

java.lang.Object

org.teamneko.softspi.SoftSPI

public class SoftSPI
extends java.lang.Object

Software Implementation of an SPI port

Author:

Tommy « LeChat » Savaria

Field Summary

Fields

Modifier and Type	Field and Description
int	clk SPI Clock pin number (wiringPi numbering scheme)
int	cs Clock Select pin number (wiringPi numbering scheme)
int	miso Master In Slave Out pin number (wiringPi numbering scheme)
int	mosi Master Out Slave In pin number (wiringPi numbering scheme)
long	speed Bus speed in bits per second

Constructor Summary

Constructors

Constructor and Description
SoftSPI(int cs, int miso, int mosi, int clk, long speed) Build a new SoftSPI object by specifying the pins to use (wiringPi scheme)

Method Summary

Modifier and Type	Method and Description
static void	initialize(SoftSPI spi) Initializes WiringPi and the GPIO for the SPI Device
static byte[]	readWrite(SoftSPI spi, byte[] data) Initiate a read/write communication on the SPI port

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

cs

public final int cs

Clock Select pin number (wiringPi numbering scheme)

miso

public final int miso

Master In Slave Out pin number (wiringPi numbering scheme)

mosi

public final int mosi

Master Out Slave In pin number (wiringPi numbering scheme)

clk

public final int clk

SPI Clock pin number (wiringPi numbering scheme)

speed

public final long speed

Bus speed in bits per second

Constructor Detail

SoftSPI

public SoftSPI(int cs,
               int miso,
               int mosi,
               int clk,
               long speed)

Build a new SoftSPI object by specifying the pins to use (wiringPi scheme)

Parameters:

cs - Chip Select Pin

miso - Master In Slave Out Pin

mosi - Master Out Slave In Pin

clk - Clock Pin

speed - Speed of the SPI port in bits per second (b/s)

Method Detail

initialize

public static void initialize(SoftSPI spi)

Initializes WiringPi and the GPIO for the SPI Device

Parameters:

spi - SPI Pins Definition

readWrite

public static byte[] readWrite(SoftSPI spi,
                               byte[] data)

Initiate a read/write communication on the SPI port

Parameters:

spi - SPI Pins Definition

data - Data to write on the SPI port

Returns:

Data read from the SPI port