TEST/ZStack-2.5.1a/Components/hal/target/CC2530ZNP/hal_startup.c

/**************************************************************************************************
  Filename:       hal_startup.c
  Revised:        $Date: 2010-01-28 16:31:53 -0800 (Thu, 28 Jan 2010) $
  Revision:       $Revision: 21613 $

  Description:    Contains code that needs to run before main()

  Copyright 2008 Texas Instruments Incorporated. All rights reserved.

  IMPORTANT: Your use of this Software is limited to those specific rights
  granted under the terms of a software license agreement between the user
  who downloaded the software, his/her employer (which must be your employer)
  and Texas Instruments Incorporated (the "License").  You may not use this
  Software unless you agree to abide by the terms of the License. The License
  limits your use, and you acknowledge, that the Software may not be modified,
  copied or distributed unless embedded on a Texas Instruments microcontroller
  or used solely and exclusively in conjunction with a Texas Instruments radio
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  the foregoing purpose, you may not use, reproduce, copy, prepare derivative
  works of, modify, distribute, perform, display or sell this Software and/or
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  YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE
  PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
  INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, TITLE,
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**************************************************************************************************/

/**************************************************************************************************
 * INCLUDES
 *************************************************************************************************/
#include "hal_board.h"
#include "hal_types.h"

#ifdef __cplusplus
extern "C" {
#endif

#pragma language=extended

//
// Locate low_level_init in the CSTART module
//
#pragma location="CSTART"
//
// If the code model is banked, low_level_init must be declared
// __near_func elsa a ?BRET is performed
//
#if (__CODE_MODEL__ == 2)
__near_func __root char
#else
__root char
#endif
__low_level_init(void);

/**************************************************************************************************
 * @fn          __low_level_init
 *
 * @brief      The function __low_level_init is called by the start-up code before doing
 *                the normal initialization of data segments. If the return value is zero,
 *                initialization is not performed.
 *
 * @param       None
 *
 * @return      0 - don't intialize data segments / 1 - do initialization
 **************************************************************************************************/
#if (__CODE_MODEL__ == 2)
__near_func __root char
#else
__root char
#endif
__low_level_init(void)
{
  /*==================================*/
  /*  Initialize hardware.            */
  /*==================================*/
  // Map flash bank #1 into XDATA for access to "ROM mapped as data".
  MEMCTR = (MEMCTR & 0xF8) | 0x01;

  /*==================================*/
  /* Choose if segment initialization */
  /* should be done or not.           */
  /* Return: 0 to omit seg_init       */
  /*         1 to run seg_init        */
  /*==================================*/
  return 1;
}

#pragma language=default

#ifdef __cplusplus
}
#endif