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// ============================================================================
//
// = CONTEXT
// TANGO Project - Keithley Electrometer Support Library
//
// = FILENAME
// CommunicationLink.h
//
// = AUTHOR
// X. Elattaoui
//
//
// Revision 1.7 2012/07/03 06:15:53 xavela
// Novelec part : bug at init fixed.
//
// Revision 1.6 2010/06/10 14:36:15 xavela
// cmd switch_off called before any parameters modifications and then locked with switch_on.
//
ELATTAOUI
committed
// Revision 1.5 2008/04/15 12:51:59 xavela
// xavier :
// - SRQ management changed :
// * ReadStatusByteRegister method added
// * IsSrqLineUP added
//
// Revision 1.4 2008/02/15 10:17:55 xavela
// xavier :
// - command abort added for SCPI Keithleys
//
// Revision 1.3 2008/02/13 15:51:44 xavela
// xavier :
// - Integration Mode available for DDC/SCPI devices
// - tests done with a K617 (DDC) and a K6485 (SCPI)
//
// Revision 1.2 2008/02/11 16:55:04 xavela
// xavier : for DDC part
// - integration mode OK (tests done with K_486)
//
// - TODO: DDC/SCPI
// integration time for ScanServer compatibility.
// report config for all DDC
// add configuration in SCPI start command
//
// Revision 1.1 2007/07/09 13:20:35 stephle
// initial import
//
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//
// ============================================================================
#ifndef _COMMUNICATION_LINK_H_
#define _COMMUNICATION_LINK_H_
#include <string>
// ============================================================================
// DEPENDENCIES
// ============================================================================
/**
* \addtogroup Communication Management
* @{
*/
/**
* \brief Abstract class to manage a specific communication bus
*
* \author Xavier Elattaoui
* \date 11-2006
*/
class CommunicationLink
{
public :
/**
* Initialization.
*/
CommunicationLink (std::string& communication_link_name);
/**
* Release resources.
*/
virtual ~CommunicationLink (void);
/**
* \brief Send command (data) as string to hardware.
*
* \throws Tango::DevFailed
*/
virtual void write(std::string) = 0;
/**
* \brief Gets hardware response as string.
*
* \throws Tango::DevFailed
*/
virtual std::string read(void) = 0;
/**
* \brief Performs a write read operation as string.
*
* \throws Tango::DevFailed
*/
virtual std::string write_read(std::string cmd_to_send) = 0;
* \brief Performs a write read operation as string. (for Serialline )
virtual std::string write_read (std::string command_to_send, long nbChar) {return "";}
/**
* \brief Returns the Gpib SRQ line state : used here to know if Keithley
* device is ready after an integration cycle.
*
* \throws Tango::DevFailed
*/
virtual bool SRQLineState (void); //- used to know if the integration cycle is done!
virtual short readStatusByteRegister (void); //- device status byte register value on SRQ!
/**
* \brief Clear a specific device (same as reset *RST).
*
* \throws Tango::DevFailed
*/
virtual void clear(void);
/**
* \brief Trigg device on the gpib bus.
*
* \throws Tango::DevFailed
*/
virtual void trigger(void);