eeprom.c

TDK 6521 SOC 芯片 DEMO程序

#endif

// Copy four (4) bytes to eeprom; 
#if EXTRAS
enum EEPROM_RC data *memset_pr  (uint32_t dst, int32_t src)
{
    int32_t xdata xsrc = src;

    return (memcpy_prx (dst, (uint8x_t *) &xsrc, 4));
}
#endif

#pragma save
#pragma NOAREGS
enum EEPROM_RC data *memcpy_prx (uint32_t Dst, uint8x_t *pSrc, uint16_t len) small reentrant
{
    if (!done || !(DIO & DIO_EEX))
       status = _ERR_PENDING;
    else
    {
       cnt = len;

       if (cnt)
       {
          mode = WRITE_MODE;
          addr.l = Dst;
          ptr = pSrc;
          status = _PENDING;
          done = FALSE;
          state = START_WRITE;          // Delay 'msWr' msec before next START.                                   
          if (NULL == stm_start (write_tick_cnt, 0, issue_START))
             status = _ERR_OVERRUN;
       }
       else
          status = _OK;
    }

    return (&status);
}
#pragma restore
#endif

#if CLI
// clear the EEPROM
enum EEPROM_RC data *memclr_pr (void)
{
    if (!done || !(DIO & DIO_EEX))
       status = _ERR_PENDING;
    else
    {
       cnt = EEPROM_SIZE;

       mode = CLEAR_MODE;
       addr.l = 0;
       status = _PENDING;
       done = FALSE;
       state = START_WRITE;          // Delay 'msWr' msec before next START.
       if (NULL == stm_start (write_tick_cnt, 0, issue_START))
           status = _ERR_OVERRUN;
    }

    return (&status);
}
#endif

// Read four (4) bytes; A return of nonzero is a failure.
#if EXTRAS
enum EEPROM_RC data *memget_pr (int32x_t *dst, uint32_t src)
{
    return (memcpy_xpr((uint8x_t *) dst, src, 4));    
}
#endif

enum EEPROM_RC data *memcpy_xpr (uint8_t xdata *pDst, uint32_t Src, uint16_t len)
{
    if (!done || !(DIO & DIO_EEX))
       status = _ERR_PENDING;
    else
    {
       cnt = len;

       if (cnt)
       {
          mode = READ_MODE;
          addr.l = Src;
          ptr = pDst;
          status = _PENDING;
          done = FALSE;
          state = START_WRITE;          // Delay 'msWr' msec before next START.                                   
          if (NULL == stm_start (write_tick_cnt, 0, issue_START))
             status = _ERR_OVERRUN;
       }
       else
          status = _OK;
    }

    return (&status);
}

// returns 1 if it worked, 0 if it timed out or failed
#if CAL_SAVE && NV_SELECT == NV_EEPROM
bool eeprom_ok (enum EEPROM_RC data *pstatus)
{
#if TIMERS
    STM stm; 
    bool ok;

    RESET_WD();

    ok = FALSE;

    stm = stm_start ( milliseconds(7000), 0, NULL);
    if (NULL == stm)
        *pstatus = _ERR_OVERRUN;

    while (stm_running(stm) && (_PENDING ==  *pstatus))
    {
        stm_run ();
    }

    RESET_WD();

    ok = stm_running(stm) && (_OK ==  *pstatus);

    stm_stop (stm);

    return ok;
#else // no timers, so no timeout
    while (PENDING ==  *pstatus)
    {
        RESET_WD();
        delay_clks (3);
    }

    return (_OK ==  *pstatus);
#endif
}
#endif // calibration

#endif // EEPROM.
/***************************************************************************
 * History:
 * $Log: eeprom.c,v $
 * Revision 1.30  2006/09/09 01:09:14  gmikef
 * *** empty log message ***
 *
 * Revision 1.29  2006/09/06 02:10:52  tvander
 * Spaces for tabs
 *
 * Revision 1.28  2006/08/30 21:55:08  gmikef
 * *** empty log message ***
 *
 * Revision 1.27  2006/06/29 00:55:48  tvander
 * Marked NOAREGS on reentrant routines that needed it.
 *
 * Revision 1.26  2006/06/15 16:36:55  tvander
 * Fixed reentrancy on iiceep.c and eepromp.c
 * Made parallel code changes to microwire eeprom drivers.
 *
 * Revision 1.25  2006/06/12 20:38:04  tvander
 * Compiles.
 *
 * Revision 1.24  2006/05/18 23:18:43  tvander
 * 16K and 32K
 * First cut at new requirements.
 * 32K 6521 is grossly tested.
 * All others have a clean compile with C51 8.02
 *
 * Revision 1.23  2006/04/14 20:11:22  tvander
 * Fixed, integrated with phased calibration
 *
 * Revision 1.22  2006/03/08 00:00:55  tvander
 * Revised IO so that multiplexed interrupts are centralized in io65xx.c
 * Added default interrupts to io65xx.c
 * Clean build.
 * Tested CE, serial.
 * interrupting EEPROM driver fails.
 *
 * Revision 1.21  2006/03/06 03:30:37  Michael T. Fischer
 * More 6530 prep.
 *
 * Revision 1.20  2006/02/08 22:36:25  gmikef
 * *** empty log message ***
 *
 * Revision 1.19  2006/02/08 03:43:17  tvander
 * Made "import" the default power measurement mode, rather than net-metering
 *
 * Revision 1.18  2006/01/10 03:56:45  gmikef
 * Added PDATA support for CE Outputs.
 *
 * Revision 1.17  2006/01/04 04:47:50  gmikef
 * Switched RMS and VA calculations to use floating point. (and Calibration).
 *
 * Revision 1.15  2005/11/29 01:14:13  tvander
 * Automatic software watchdogs
 *
 * Revision 1.14  2005/11/05 02:13:59  tvander
 * Fixed build
 *
 * Revision 1.13  2005/11/05 01:56:25  tvander
 * Added EEPROM erase; Note uwreep.c is not working; don't know why.
 *
 * Revision 1.12  2005/10/31 17:37:59  tvander
 * Includes improved EEPROM code with uwire.
 * Clean build, all build trees (Thank-you, Mike!)
 *
 * Revision 1.11  2005/10/20 18:39:39  tvander
 * Ported 2-wire EEPROM code from 6511/6513, including interrupting version, polling version for DIO, and polling version using the 2-wire logic.
 *
 * Revision 1.10  2005/09/22 23:45:03  tvander
 * Clean build all models and unit tests, updated copyright to be fore Teridian
 *
 * Revision 1.9  2005/08/28 02:13:01  gmikef
 * *** empty log message ***
 *
 * Revision 1.8  2005/08/16 02:28:29  gmikef
 * Remapped LCD for 6520 Eval Board.
 * Mapped CE code location to address of 'CeCode'.
 *
 * Revision 1.7  2005/08/12 21:51:37  tvander
 * Added a synchronization and test function.
 *
 * Revision 1.6  2005/08/10 01:57:13  gmikef
 * *** empty log message ***
 *
 * Revision 1.5  2005/04/30 02:10:04  gmikef
 * *** empty log message ***
 *
 * Revision 1.9  2005/04/25 21:26:00  gmikef
 * *** empty log message ***
 *
 * Revision 1.4  2005/04/21 01:58:50  gmikef
 * *** empty log message ***
 *
 * Revision 1.8  2005/04/09 02:04:24  gmikef
 * *** empty log message ***
 *
 * Revision 1.3  2005/03/12 00:16:58  tvander
 * Integrated memory types.
 *
 * Revision 1.2  2005/03/11 22:57:02  tvander
 * Added bool, and 8/16/32 data structures
 *
 * Revision 1.1  2005/03/11 22:19:13  tvander
 * *** empty log message ***
 *
 * Revision 1.3  2005/03/08 19:06:42  tvander
 * Self calibration in all software models
 *
 * Revision 1.2  2005/02/17 18:32:25  tvander
 * Added automatic check-in logging to all source code.
 *
 *  Copyright, 2004 Teridian SemiConductor, CORP. all rights reserved
 *  this program is fully protected by the United States copyright
 *  laws and is the property of Teridian SemiConductor CORPORATION.
 ***************************************************************************/