Public Member Functions | Protected Member Functions | Protected Attributes | Private Member Functions | Private Attributes
cCANSerial_PEAK Class Reference

Low-level communication class to access a CAN port from company PEAK (http://www.peak-system.com) More...

#include <canserial-peak.h>

Inheritance diagram for cCANSerial_PEAK:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 cCANSerial_PEAK (unsigned long _baudrate, double _timeout, int _id_read, int _id_write, const char *device="/dev/pcanusb0") throw (cCANSerial_PEAKException*)
 cCANSerial_PEAK (tDeviceHandle _peak_handle, double _timeout, int _id_read, int _id_write) throw (cCANSerial_PEAKException*)
void Close (void) throw (cCANSerial_PEAKException*)
 Close the previously opened CAN PEAK interface port.
virtual char const * GetErrorMessage (tErrorCode dw)
virtual tErrorCode GetErrorNumber ()
tDeviceHandle GetHandle ()
bool IsOpen (void) throw ()
 Return true if interface to CAN PEAK is open.
void Open (void) throw (cCANSerial_PEAKException*)
ssize_t Read (void *data, ssize_t size, long timeout_us, bool return_on_less_data) throw (cCANSerial_PEAKException*)
void SetTimeout (double _timeout) throw (cSerialBaseException*)
 set the timeout for next readline() calls (negative value means: no timeout, wait for ever)
int write (char const *ptr, int len=0) throw (cCANSerial_PEAKException*)
 Write data to a previously opened port.
 ~cCANSerial_PEAK ()
 destructor: clean up

Protected Member Functions

int BaudrateToBaudrateCode (unsigned long baudrate) throw (cCANSerial_PEAKException*)
 Translate a baudrate given as unsigned long into a baudrate code for struct termios.

Protected Attributes

unsigned long baudrate
 the baudrate to use in bit/s
int id_read
 the CAN ID used for reading
int id_write
 the CAN ID used for writing
char m_device [64]

Private Member Functions

 cCANSerial_PEAK (cCANSerial_PEAK const &other)
 private copy constructor without implementation, since copying of cCANSerial_PEAK objects makes no sense
cCANSerial_PEAKoperator= (cCANSerial_PEAK const &rhs)
 private copy assignment operator without implementation, since copying of cCANSerial_PEAK objects makes no sense

Private Attributes

cCANSerial_PEAK_Internal * pimpl
 ptr to private, implementation specific members (using the 'Pimpl' (pointer to implementatino) design pattern)

Detailed Description

Low-level communication class to access a CAN port from company PEAK (http://www.peak-system.com)

Since SDHLibrary-C++ release 0.0.2.0 implementation specific parts of the access to PEAK CAN devices have been removed from the header file here in order to get rid of dependencies from the Pcan_usb.h. Specifically the peak_handle of type PEAK_HANDLE member was removed. You can still provide an existing handle for reuse on construction, but you must cast your HANDLE to a tDeviceHandle. You can get the internally used PEAK_HANDLE cast to a tDeviceHandle with GetHandle().

Definition at line 78 of file canserial-peak.h.


Constructor & Destructor Documentation

cCANSerial_PEAK::cCANSerial_PEAK ( cCANSerial_PEAK const &  other) [private]

private copy constructor without implementation, since copying of cCANSerial_PEAK objects makes no sense

cCANSerial_PEAK::cCANSerial_PEAK ( unsigned long  _baudrate,
double  _timeout,
int  _id_read,
int  _id_write,
const char *  device = "/dev/pcanusb0" 
) throw (cCANSerial_PEAKException*)

Constructor: constructs an object to communicate with an SDH via CAN bus using a PEAK CAN card.

Parameters:
_baudrate- the baudrate in bit/s. Only some bitrates are valid: (1000000,800000,500000,250000,125000,100000,50000,20000,10000)
_timeout- the timeout in seconds (0 for no timeout = wait for ever)
_id_read- the CAN ID to use for reading (The SDH sends data on this ID)
_id_write- the CAN ID to use for writing (The SDH receives data on this ID)
device- the name of the char device to communicate with the PEAD driver (Needed on Linux only!)
cCANSerial_PEAK::cCANSerial_PEAK ( tDeviceHandle  _peak_handle,
double  _timeout,
int  _id_read,
int  _id_write 
) throw (cCANSerial_PEAKException*)

Constructor: constructs an object to communicate with an SDH via CAN bus using a PEAK CAN card by reusing an already existing handle (will work in Linux only).

Parameters:
_peak_handle- the PEAK CAN handle to reuse (Works on Linux only!)
_timeout- the timeout in seconds (0 for no timeout = wait for ever)
_id_read- the CAN ID to use for reading (The SDH sends data on this ID)
_id_write- the CAN ID to use for writing (The SDH receives data on this ID)

destructor: clean up


Member Function Documentation

int cCANSerial_PEAK::BaudrateToBaudrateCode ( unsigned long  baudrate) throw (cCANSerial_PEAKException*) [protected]

Translate a baudrate given as unsigned long into a baudrate code for struct termios.

void cCANSerial_PEAK::Close ( void  ) throw (cCANSerial_PEAKException*) [virtual]

Close the previously opened CAN PEAK interface port.

Implements cSerialBase.

virtual char const* cCANSerial_PEAK::GetErrorMessage ( tErrorCode  dw) [virtual]

Overloaded helper function that returns a PEAK error message for error code dw.

Remarks:
The string returned will be overwritten by the next call to the function

Reimplemented from cSerialBase.

Overloaded helper function that returns the last Peak error number.

Reimplemented from cSerialBase.

Return the value of the HANDLE to the actual CAN device. Works on Linux only! Only returns a valid handle after a call to Open()!

Remarks:
The returned handle can be used to open a connection to a second SDH on the same CAN bus
Returns:
the handle to the actual CAN device
bool cCANSerial_PEAK::IsOpen ( void  ) throw () [virtual]

Return true if interface to CAN PEAK is open.

Implements cSerialBase.

void cCANSerial_PEAK::Open ( void  ) throw (cCANSerial_PEAKException*) [virtual]

Open the device as configured by the parameters given to the constructor

Implements cSerialBase.

cCANSerial_PEAK& cCANSerial_PEAK::operator= ( cCANSerial_PEAK const &  rhs) [private]

private copy assignment operator without implementation, since copying of cCANSerial_PEAK objects makes no sense

ssize_t cCANSerial_PEAK::Read ( void *  data,
ssize_t  size,
long  timeout_us,
bool  return_on_less_data 
) throw (cCANSerial_PEAKException*) [virtual]

Read data from device. This function waits until max_time_us us passed or the expected number of bytes are received via serial line. if (return_on_less_data is true (default value), the number of bytes that have been received are returned and the data is stored in data If the return_on_less_data is false, data is only read from serial line, if at least size bytes are available.

Implements cSerialBase.

void cCANSerial_PEAK::SetTimeout ( double  _timeout) throw (cSerialBaseException*) [virtual]

set the timeout for next readline() calls (negative value means: no timeout, wait for ever)

Reimplemented from cSerialBase.

int cCANSerial_PEAK::write ( char const *  ptr,
int  len = 0 
) throw (cCANSerial_PEAKException*) [virtual]

Write data to a previously opened port.

Write len bytes from *ptr to the CAN device

Parameters:
ptr- pointer the byte array to send in memory
len- number of bytes to send
Returns:
the number of bytes actually written

Implements cSerialBase.


Member Data Documentation

unsigned long cCANSerial_PEAK::baudrate [protected]

the baudrate to use in bit/s

Definition at line 84 of file canserial-peak.h.

int cCANSerial_PEAK::id_read [protected]

the CAN ID used for reading

Definition at line 87 of file canserial-peak.h.

int cCANSerial_PEAK::id_write [protected]

the CAN ID used for writing

Definition at line 90 of file canserial-peak.h.

char cCANSerial_PEAK::m_device[64] [protected]

Definition at line 98 of file canserial-peak.h.

cCANSerial_PEAK_Internal* cCANSerial_PEAK::pimpl [private]

ptr to private, implementation specific members (using the 'Pimpl' (pointer to implementatino) design pattern)

Definition at line 102 of file canserial-peak.h.


The documentation for this class was generated from the following file:
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schunk_sdh
Author(s): Florian Weisshardt
autogenerated on Tue Mar 5 2013 14:44:11