hfDaqCard

Class SmruDaqJNI

java.lang.Object

hfDaqCard.SmruDaqJNI

public class SmruDaqJNI
extends java.lang.Object

Functions to interface with the SMRU Ltd DAQ card C code via JNI

Author:

Doug Gillespie

Field Summary

Fields

Modifier and Type	Field and Description
static int	SMRU_RET_OK
static int	SMRU_VAL_MASTER
static int	SMRU_VAL_SLAVE
static int	SMRU_VAL_SLAVE_MASTERED
static int	SMRU_VAL_STANDALONE

Constructor Summary

Constructors

Constructor and Description
SmruDaqJNI(SmruDaqSystem smruDaqSystem)

Method Summary

Methods

Modifier and Type	Method and Description
int	closeCard(int board)
int	getLED(int board, int led)
int	getnDevices()
int	getNumDevices()
long	getSerialNumber(int boardId) Get the serial number for a device.
int	getSynchMode(int board) Get a boards synch mode
boolean	prepareChannel(int board, int channel, int gainIndex, int filterIndex) Sets the gain and filters for a channel
int	prepareDevice(int board, boolean reset) This function will also load the card information and open the card - so jni code keeps thos handles and keeps on re-using them.
short[]	readSamples(int board, int channel, int nSamples)
boolean	resetCard(int board)
boolean	setChannelMask(int board, int channelMask)
int	setLED(int board, int led, int state)
boolean	setSampleRateIndex(int board, int sampleRateIndex)
int	setSynchMode(int board, int mode) Set a board synch mode.
boolean	startSystem(int board)
boolean	stopSystem(int board)
boolean	systemStopped(int board)
int	toggleLED(int board, int led)

Methods inherited from class java.lang.Object

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

Field Detail

SMRU_VAL_STANDALONE

public static final int SMRU_VAL_STANDALONE

See Also:

Constant Field Values

SMRU_VAL_MASTER

public static final int SMRU_VAL_MASTER

See Also:

Constant Field Values

SMRU_VAL_SLAVE

public static final int SMRU_VAL_SLAVE

See Also:

Constant Field Values

SMRU_VAL_SLAVE_MASTERED

public static final int SMRU_VAL_SLAVE_MASTERED

See Also:

Constant Field Values

SMRU_RET_OK

public static final int SMRU_RET_OK

See Also:

Constant Field Values

Constructor Detail

SmruDaqJNI

public SmruDaqJNI(SmruDaqSystem smruDaqSystem)

Method Detail

getNumDevices

public int getNumDevices()

toggleLED

public int toggleLED(int board,
            int led)

setLED

public int setLED(int board,
         int led,
         int state)

getLED

public int getLED(int board,
         int led)

prepareDevice

public int prepareDevice(int board,
                boolean reset)

This function will also load the card information and open the card - so jni code keeps thos handles and keeps on re-using them.

Parameters:

cardName -

Returns:

setSynchMode

public int setSynchMode(int board,
               int mode)

Set a board synch mode.

Parameters:

board - board number

mode - synch mode (0,1,2,3)

Returns:

SMRU_RET_OK or -MinVal if an error

getSynchMode

public int getSynchMode(int board)

Get a boards synch mode

Parameters:

board - board number

Returns:

synch mode or -something if an error

closeCard

public int closeCard(int board)

resetCard

public boolean resetCard(int board)

setSampleRateIndex

public boolean setSampleRateIndex(int board,
                         int sampleRateIndex)

setChannelMask

public boolean setChannelMask(int board,
                     int channelMask)

prepareChannel

public boolean prepareChannel(int board,
                     int channel,
                     int gainIndex,
                     int filterIndex)

Sets the gain and filters for a channel

Parameters:

board - board number

channel - channel number

gainIndex - gain index

filterIndex - filter index

Returns:

ok if ok

startSystem

public boolean startSystem(int board)

stopSystem

public boolean stopSystem(int board)

systemStopped

public boolean systemStopped(int board)

readSamples

public short[] readSamples(int board,
                  int channel,
                  int nSamples)

getnDevices

public int getnDevices()

Returns:

the nDevices

getSerialNumber

public long getSerialNumber(int boardId)

Get the serial number for a device.

Parameters:

boardId - board number

Returns:

serial number.