Package com.dalsemi.onewire.adapter

Class PDKAdapterUSB

java.lang.Object
com.dalsemi.onewire.adapter.DSPortAdapter
com.dalsemi.onewire.adapter.PDKAdapterUSB
public class PDKAdapterUSB extends DSPortAdapter

  • Constructor Details

    • PDKAdapterUSB

      public PDKAdapterUSB()

  • Method Details

    • selectPort

      public boolean selectPort(String portName) throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Specifies a platform appropriate port name for this adapter. Note that even though the port has been selected, it's ownership may be relinquished if it is not currently held in a 'exclusive' block. This class will then try to re-acquire the port when needed. If the port cannot be re-acquired when the exception PortInUseException will be thrown.
      Specified by:
      selectPort in class DSPortAdapter
      Parameters:
      portName - name of the target port, retrieved from getPortNames()
      Returns:
      true if the port was acquired, false if the port is not available.
      Throws:
      OneWireIOException - If port does not exist, or unable to communicate with port.
      OneWireException - If port does not exist

    • freePort

      public void freePort() throws OneWireException
      Description copied from class: DSPortAdapter
      Frees ownership of the selected port, if it is currently owned, back to the system. This should only be called if the recently selected port does not have an adapter, or at the end of your application's use of the port.
      Specified by:
      freePort in class DSPortAdapter
      Throws:
      OneWireException - If port does not exist

    • getAdapterName

      public String getAdapterName()
      Description copied from class: DSPortAdapter
      Retrieves the name of the port adapter as a string. The 'Adapter' is a device that connects to a 'port' that allows one to communicate with an iButton or other 1-Wire device. As example of this is 'DS9097U'.
      Specified by:
      getAdapterName in class DSPortAdapter
      Returns:
      String representation of the port adapter.

    • getPortTypeDescription

      public String getPortTypeDescription()
      Description copied from class: DSPortAdapter
      Retrieves a description of the port required by this port adapter. An example of a 'Port' would 'serial communication port'.
      Specified by:
      getPortTypeDescription in class DSPortAdapter
      Returns:
      String description of the port type required.

    • getClassVersion

      public String getClassVersion()
      Description copied from class: DSPortAdapter
      Retrieves a version string for this class.
      Specified by:
      getClassVersion in class DSPortAdapter
      Returns:
      version string

    • getPortNames

      public Enumeration<String> getPortNames()
      Description copied from class: DSPortAdapter
      Retrieves a list of the platform appropriate port names for this adapter. A port must be selected with the method 'selectPort' before any other communication methods can be used. Using a communication method before 'selectPort' will result in a OneWireException exception.
      Specified by:
      getPortNames in class DSPortAdapter
      Returns:
      Enumeration of type String that contains the port names

    • getPortName

      public String getPortName() throws OneWireException
      Description copied from class: DSPortAdapter
      Retrieves the name of the selected port as a String.
      Specified by:
      getPortName in class DSPortAdapter
      Returns:
      String of selected port
      Throws:
      OneWireException - if valid port not yet selected

    • adapterDetected

      public boolean adapterDetected() throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Detects adapter presence on the selected port.
      Specified by:
      adapterDetected in class DSPortAdapter
      Returns:
      true if the adapter is confirmed to be connected to the selected port, false if the adapter is not connected.
      Throws:
      OneWireIOException
      OneWireException

    • getAddress

      public void getAddress(byte[] address)
      Description copied from class: DSPortAdapter
      Copies the 'current' 1-Wire device address being used by the adapter into the array. This address is the last iButton or 1-Wire device found in a search (findNextDevice()...). This method copies into a user generated array to allow the reuse of the buffer. When searching many iButtons on the one wire network, this will reduce the memory burn rate.
      Specified by:
      getAddress in class DSPortAdapter
      Parameters:
      address - An array to be filled with the current iButton address.
      See Also:

    • findFirstDevice

      public boolean findFirstDevice() throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Returns true if the first iButton or 1-Wire device is found on the 1-Wire Network. If no devices are found, then false will be returned.
      Specified by:
      findFirstDevice in class DSPortAdapter
      Returns:
      true if an iButton or 1-Wire device is found.
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • findNextDevice

      public boolean findNextDevice() throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Returns true if the next iButton or 1-Wire device is found. The previous 1-Wire device found is used as a starting point in the search. If no more devices are found then false will be returned.
      Specified by:
      findNextDevice in class DSPortAdapter
      Returns:
      true if an iButton or 1-Wire device is found.
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • setSearchOnlyAlarmingDevices

      public void setSearchOnlyAlarmingDevices()
      Description copied from class: DSPortAdapter
      Sets the 1-Wire Network search to find only iButtons and 1-Wire devices that are in an 'Alarm' state that signals a need for attention. Not all iButton types have this feature. Some that do: DS1994, DS1920, DS2407. This selective searching can be canceled with the 'setSearchAllDevices()' method.
      Specified by:
      setSearchOnlyAlarmingDevices in class DSPortAdapter
      See Also:

    • setNoResetSearch

      public void setNoResetSearch()
      Description copied from class: DSPortAdapter
      Sets the 1-Wire Network search to not perform a 1-Wire reset before a search. This feature is chiefly used with the DS2409 1-Wire coupler. The normal reset before each search can be restored with the 'setSearchAllDevices()' method.
      Specified by:
      setNoResetSearch in class DSPortAdapter

    • setSearchAllDevices

      public void setSearchAllDevices()
      Description copied from class: DSPortAdapter
      Sets the 1-Wire Network search to find all iButtons and 1-Wire devices whether they are in an 'Alarm' state or not and restores the default setting of providing a 1-Wire reset command before each search. (see setNoResetSearch() method).
      Specified by:
      setSearchAllDevices in class DSPortAdapter
      See Also:

    • beginExclusive

      public boolean beginExclusive(boolean blocking) throws OneWireException
      Description copied from class: DSPortAdapter
      Gets exclusive use of the 1-Wire to communicate with an iButton or 1-Wire Device. This method should be used for critical sections of code where a sequence of commands must not be interrupted by communication of threads with other iButtons, and it is permissible to sustain a delay in the special case that another thread has already been granted exclusive access and this access has not yet been relinquished.

      It can be called through the OneWireContainer class by the end application if they want to ensure exclusive use. If it is not called around several methods then it will be called inside each method.

      Specified by:
      beginExclusive in class DSPortAdapter
      Parameters:
      blocking - true if want to block waiting for exclusive access to the adapter
      Returns:
      true if blocking was false and a exclusive session with the adapter was acquired
      Throws:
      OneWireException - on a setup error with the 1-Wire adapter

    • endExclusive

      public void endExclusive()
      Description copied from class: DSPortAdapter
      Relinquishes exclusive control of the 1-Wire Network. This command dynamically marks the end of a critical section and should be used when exclusive control is no longer needed.
      Specified by:
      endExclusive in class DSPortAdapter

    • putBit

      public void putBit(boolean dataBit) throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Sends a bit to the 1-Wire Network.
      Specified by:
      putBit in class DSPortAdapter
      Parameters:
      dataBit - the bit value to send to the 1-Wire Network.
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • getBit

      public boolean getBit() throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Gets a bit from the 1-Wire Network.
      Specified by:
      getBit in class DSPortAdapter
      Returns:
      the bit value received from the the 1-Wire Network.
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • putByte

      public void putByte(int dataByte) throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Sends a byte to the 1-Wire Network.
      Specified by:
      putByte in class DSPortAdapter
      Parameters:
      dataByte - the byte value to send to the 1-Wire Network.
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • getByte

      public int getByte() throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Gets a byte from the 1-Wire Network.
      Specified by:
      getByte in class DSPortAdapter
      Returns:
      the byte value received from the the 1-Wire Network.
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • getBlock

      public byte[] getBlock(int len) throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Gets a block of data from the 1-Wire Network.
      Specified by:
      getBlock in class DSPortAdapter
      Parameters:
      len - length of data bytes to receive
      Returns:
      the data received from the 1-Wire Network.
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • getBlock

      public void getBlock(byte[] buff, int len) throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Gets a block of data from the 1-Wire Network and write it into the provided array.
      Specified by:
      getBlock in class DSPortAdapter
      Parameters:
      buff - array in which to write the received bytes
      len - length of data bytes to receive
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • getBlock

      public void getBlock(byte[] buff, int off, int len) throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Gets a block of data from the 1-Wire Network and write it into the provided array.
      Specified by:
      getBlock in class DSPortAdapter
      Parameters:
      buff - array in which to write the received bytes
      off - offset into the array to start
      len - length of data bytes to receive
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • dataBlock

      public void dataBlock(byte[] buff, int off, int len) throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Sends a block of data and returns the data received in the same array. This method is used when sending a block that contains reads and writes. The 'read' portions of the data block need to be pre-loaded with 0xFF's. It starts sending data from the index at offset 'off' for length 'len'.
      Specified by:
      dataBlock in class DSPortAdapter
      Parameters:
      buff - array of data to transfer to and from the 1-Wire Network.
      off - offset into the array of data to start
      len - length of data to send / receive starting at 'off'
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • reset

      public int reset() throws OneWireIOException, OneWireException
      Description copied from class: DSPortAdapter
      Sends a Reset to the 1-Wire Network.
      Specified by:
      reset in class DSPortAdapter
      Returns:
      the result of the reset. Potential results are:
      • 0 (RESET_NOPRESENCE) no devices present on the 1-Wire Network.
      • 1 (RESET_PRESENCE) normal presence pulse detected on the 1-Wire Network indicating there is a device present.
      • 2 (RESET_ALARM) alarming presence pulse detected on the 1-Wire Network indicating there is a device present and it is in the alarm condition. This is only provided by the DS1994/DS2404 devices.
      • 3 (RESET_SHORT) indicates 1-Wire appears shorted. This can be transient conditions in a 1-Wire Network. Not all adapter types can detect this condition.
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • canOverdrive

      public boolean canOverdrive() throws OneWireIOException, OneWireException
      Returns whether adapter can physically support overdrive mode.
      Overrides:
      canOverdrive in class DSPortAdapter
      Returns:
      true if this port adapter can do OverDrive, false otherwise.
      Throws:
      OneWireIOException - on a 1-Wire communication error with the adapter
      OneWireException - on a setup error with the 1-Wire adapter

    • canHyperdrive

      public boolean canHyperdrive() throws OneWireIOException, OneWireException
      Returns whether the adapter can physically support hyperdrive mode.
      Overrides:
      canHyperdrive in class DSPortAdapter
      Returns:
      true if this port adapter can do HyperDrive, false otherwise.
      Throws:
      OneWireIOException - on a 1-Wire communication error with the adapter
      OneWireException - on a setup error with the 1-Wire adapter

    • canFlex

      public boolean canFlex() throws OneWireIOException, OneWireException
      Returns whether the adapter can physically support flex speed mode.
      Overrides:
      canFlex in class DSPortAdapter
      Returns:
      true if this port adapter can do flex speed, false otherwise.
      Throws:
      OneWireIOException - on a 1-Wire communication error with the adapter
      OneWireException - on a setup error with the 1-Wire adapter

    • canProgram

      public boolean canProgram() throws OneWireIOException, OneWireException
      Returns whether adapter can physically support 12 volt power mode.
      Overrides:
      canProgram in class DSPortAdapter
      Returns:
      true if this port adapter can do Program voltage, false otherwise.
      Throws:
      OneWireIOException - on a 1-Wire communication error with the adapter
      OneWireException - on a setup error with the 1-Wire adapter

    • canDeliverPower

      public boolean canDeliverPower() throws OneWireIOException, OneWireException
      Returns whether the adapter can physically support strong 5 volt power mode.
      Overrides:
      canDeliverPower in class DSPortAdapter
      Returns:
      true if this port adapter can do strong 5 volt mode, false otherwise.
      Throws:
      OneWireIOException - on a 1-Wire communication error with the adapter
      OneWireException - on a setup error with the 1-Wire adapter

    • canDeliverSmartPower

      public boolean canDeliverSmartPower() throws OneWireIOException, OneWireException
      Returns whether the adapter can physically support "smart" strong 5 volt power mode. "smart" power delivery is the ability to deliver power until it is no longer needed. The current drop it detected and power delivery is stopped.
      Overrides:
      canDeliverSmartPower in class DSPortAdapter
      Returns:
      true if this port adapter can do "smart" strong 5 volt mode, false otherwise.
      Throws:
      OneWireIOException - on a 1-Wire communication error with the adapter
      OneWireException - on a setup error with the 1-Wire adapter

    • canBreak

      public boolean canBreak() throws OneWireIOException, OneWireException
      Returns whether adapter can physically support 0 volt 'break' mode.
      Overrides:
      canBreak in class DSPortAdapter
      Returns:
      true if this port adapter can do break, false otherwise.
      Throws:
      OneWireIOException - on a 1-Wire communication error with the adapter
      OneWireException - on a setup error with the 1-Wire adapter

    • setPowerDuration

      public void setPowerDuration(int timeFactor) throws OneWireIOException, OneWireException
      Sets the duration to supply power to the 1-Wire Network. This method takes a time parameter that indicates the program pulse length when the method startPowerDelivery().

      Note: to avoid getting an exception, use the canDeliverPower() and canDeliverSmartPower() method to check it's availability.

      Overrides:
      setPowerDuration in class DSPortAdapter
      Parameters:
      timeFactor -
      • 0 (DELIVERY_HALF_SECOND) provide power for 1/2 second.
      • 1 (DELIVERY_ONE_SECOND) provide power for 1 second.
      • 2 (DELIVERY_TWO_SECONDS) provide power for 2 seconds.
      • 3 (DELIVERY_FOUR_SECONDS) provide power for 4 seconds.
      • 4 (DELIVERY_SMART_DONE) provide power until the the device is no longer drawing significant power.
      • 5 (DELIVERY_INFINITE) provide power until the setBusNormal() method is called.
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • startPowerDelivery

      public boolean startPowerDelivery(int changeCondition) throws OneWireIOException, OneWireException
      Sets the 1-Wire Network voltage to supply power to an iButton device. This method takes a time parameter that indicates whether the power delivery should be done immediately, or after certain conditions have been met.

      Note: to avoid getting an exception, use the canDeliverPower() and canDeliverSmartPower() method to check it's availability.

      Overrides:
      startPowerDelivery in class DSPortAdapter
      Parameters:
      changeCondition -
      • 0 (CONDITION_NOW) operation should occur immediately.
      • 1 (CONDITION_AFTER_BIT) operation should be pending execution immediately after the next bit is sent.
      • 2 (CONDITION_AFTER_BYTE) operation should be pending execution immediately after next byte is sent.
      Returns:
      true if the voltage change was successful, false otherwise.
      Throws:
      OneWireIOException - on a 1-Wire communication error
      OneWireException - on a setup error with the 1-Wire adapter

    • PowerLevel

      public int PowerLevel(int portHandle, int newLevel)

    • setPowerNormal

      public void setPowerNormal()
      Description copied from class: DSPortAdapter
      Sets the 1-Wire Network voltage to normal level. This method is used to disable 1-Wire conditions created by startPowerDelivery and startProgramPulse. This method will automatically be called if a communication method is called while an outstanding power command is taking place.
      Overrides:
      setPowerNormal in class DSPortAdapter