trampoline.s82

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/*! \file *********************************************************************
 *
 * \brief AVR32 UC3 ISP trampoline.
 *
 * In order to be able to program a project with both BatchISP and JTAGICE mkII
 * without having to take the general-purpose fuses into consideration, add this
 * file to the project and change the program entry point to __trampoline.
 *
 * The pre-programmed ISP will be erased if JTAGICE mkII is used.
 *
 * - Compiler:           IAR EWAVR32
 * - Supported devices:  All AVR32UC devices can be used.
 *
 * \author               Atmel Corporation: http://www.atmel.com \n
 *                       Support and FAQ: http://support.atmel.no/
 *
 ******************************************************************************/

/* Copyright (c) 2007, Atmel Corporation All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. The name of ATMEL may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY ATMEL ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY AND
 * SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


#include "../conf_isp.h"


//! @{
//! \verbatim


  RSEG  SSTACK:DATA:NOROOT(2)


  // This must be linked @ 0x80000000 if it is to be run upon reset.
  RSEG  RESET:CODE:NOROOT(1)


  PUBLIC  __trampoline
__trampoline:
  // Jump to program start.
  rjmp    program_start

  ORG PROGRAM_START_OFFSET
program_start:
  // Initialize the stack pointer.
  lddpc   sp, ??SPS
  // Jump to the C runtime startup routine.
  lddpc   pc, ??cmain


// Constant data area.

  ALIGN 2

??SPS:
  DC32  SFE(SSTACK) & ~3

  EXTERN  ?main
??cmain:
  DC32  ?main


  END


//! \endverbatim
//! @}