//
//  ISD51  In-System Debugger for 8051 based microcontrollers
//  Copyright KEIL ELEKTRONIK GmbH and Keil Software, Inc. 2000 - 2002
//  Version 1.00 Beta 0
//------------------------------------------------------------------------------
//  ISD51.H:  This header file allows the configuration of the ISD51
//            In-System Monitor.
//
//  Note: This file modified for uart2 on uPSD system.  Designed to
//        to link with ISD51_U2.obj
//
//
//  Copy this file to your project folder and add the copy to your uVision2
//  project.  You can customize several parameters of the ISD51 In-System 
//  Monitor within this configuration file.
//
//------------------------------------------------------------------------------
//  ISD51 Memory Space
//  ==================
//
//  The following define specifies the size of the on-chip DATA/IDATA RAM.
//  Most 8051 devices have 256 bytes IDATA RAM.  Some devices offer just
//  128 Bytes.  ISD51 uses 1 Byte in this IDATA.  In addition each software
//  breakpoint requires another 2 Bytes IDATA space.  For example, if two
//  breakpoints are defined, ISD51 uses the IDATA locations 0xFB .. 0xFF.

#define RAMSIZE  0x100   // default is 0x100 => 256 bytes IDATA RAM

//------------------------------------------------------------------------------
//
//  ISD51 UART Interface
//  ====================
//
//  ISD51.a51 has been modified for uPSD UART2 it now becomes ISD51_U2.a51
//



//------------------------------------------------------------------------------
//
//  ISD51 Functions
//  ===============
//
//  The following C Macro define the IDS51 functions

#ifdef __C51__

#include <absacc.h>

extern void __isd_init (void);   // ISD51 core init function

#define ISDinit()                                                         \
  if ((IEA & 0x10) == 0) {  /* Is ISD51 UART already initialized?     */  \
    __isd_init ();          /* Init ISD51 core & enable ISD interrupt */  \
  }

#define ISDwait()                                                      \
  while (1)  {                                                         \
    if (SCON2 & 0x01)  {   /* wait until Debugger sends 0xA5 */        \
      if (SBUF2 == 0xA5)  break;                                       \    
      SCON2 &= 0xFE;                                                   \
    }                                                                  \
  }                                                                    \
  __isd_init ();         /* Init ISD51 core & enable ISD interrupt */


#define ISDcheck()                                                         \
  if ((IEA & 0x10) == 0)  {  /* Is ISD51 UART already initialized? */      \
    if (SCON2 & 0x01)  {     /* wait until Debugger sends 0xA5 */          \
      if (SBUF2 != 0xA5) SCON2 &= 0xFE;                                    \
      else  __isd_init (); /* Init core & ISD interrupt */                 \
    }                                                                      \
  }                                                                        \

#define ISDdisable()     /* Disable ISD Interrupt                  */  \
    IEA &= 0xEF;

#define ISDenable()      /* Enable ISD Interrupt                  */  \
    IEA |= 0x10;

#define ISDbreak()       /* hard-code program stop (breakpoint) */     \
    SCON2 |= 0x02;       /* Set TI - Enter ISD Interrupt function */   \
    _nop_ ();

#endif


//-----------------------------------------------------------------------------
//---------------- !!! End of User Configuration Part    !!! ------------------
//-----------------------------------------------------------------------------