bananapi

Class SpiExample

java.lang.Object

bananapi.SpiExample

public class SpiExample
extends Object

This example code demonstrates how to perform basic SPI communications using the BananaPi. CS0 and CS1 (ship-select) are supported for SPI0.

Author:

Robert Savage

Field Summary

Fields

Modifier and Type	Field and Description
static short	ADC_CHANNEL_COUNT
protected static Console	console
static SpiDevice	spi

Constructor Summary

Constructors

Constructor and Description
SpiExample()

Method Summary

Modifier and Type	Method and Description
static int	getConversionValue(short channel) Communicate to the ADC chip via SPI to get single-ended conversion value for a specified channel.
static void	main(String[] args)
static void	read() Read data via SPI bus from MCP3002 chip.

Methods inherited from class java.lang.Object

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

Field Detail

spi

public static SpiDevice spi

ADC_CHANNEL_COUNT

public static short ADC_CHANNEL_COUNT

console

protected static final Console console

Constructor Detail

SpiExample

public SpiExample()

Method Detail

main

public static void main(String[] args)
                 throws InterruptedException,
                        IOException,
                        PlatformAlreadyAssignedException

Throws:

InterruptedException

IOException

PlatformAlreadyAssignedException

read

public static void read()
                 throws IOException,
                        InterruptedException

Read data via SPI bus from MCP3002 chip.

Throws:

IOException

InterruptedException

getConversionValue

public static int getConversionValue(short channel)
                              throws IOException

Communicate to the ADC chip via SPI to get single-ended conversion value for a specified channel.

Parameters:

channel - analog input channel on ADC chip

Returns:

conversion value for specified analog input channel

Throws:

IOException