2 FreeRTOS.org V5.1.1 - Copyright (C) 2003-2008 Richard Barry.
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4 This file is part of the FreeRTOS.org distribution.
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6 FreeRTOS.org is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2 of the License, or
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9 (at your option) any later version.
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11 FreeRTOS.org is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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16 You should have received a copy of the GNU General Public License
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17 along with FreeRTOS.org; if not, write to the Free Software
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18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 A special exception to the GPL can be applied should you wish to distribute
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21 a combined work that includes FreeRTOS.org, without being obliged to provide
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22 the source code for any proprietary components. See the licensing section
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23 of http://www.FreeRTOS.org for full details of how and when the exception
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26 ***************************************************************************
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27 ***************************************************************************
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29 * SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
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30 * and even write all or part of your application on your behalf. *
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31 * See http://www.OpenRTOS.com for details of the services we provide to *
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32 * expedite your project. *
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34 ***************************************************************************
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35 ***************************************************************************
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37 Please ensure to read the configuration and relevant port sections of the
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38 online documentation.
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40 http://www.FreeRTOS.org - Documentation, latest information, license and
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43 http://www.SafeRTOS.com - A version that is certified for use in safety
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46 http://www.OpenRTOS.com - Commercial support, development, porting,
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47 licensing and training services.
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50 #include "FreeRTOS.h"
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52 /*-----------------------------------------------------------*/
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54 /* Called by the startup code to initialise the run time system. */
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55 unsigned portCHAR __low_level_init( void );
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57 /*-----------------------------------------------------------*/
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59 unsigned portCHAR __low_level_init( void )
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61 unsigned portCHAR resetflag = RESF;
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62 unsigned portBASE_TYPE i = 0;
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64 portDISABLE_INTERRUPTS(); /* disable global interrupts */
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66 PRCMD = 0x00; /* On-chip debug mode */
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67 PCC = 0x00; /* high speed mode fCPU */
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69 WDTM2 = 0xF; /* Stop watchdog Timer */
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70 PLLS = 0x03; /* Set PLL stabilisation time */
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71 PLLON = 1; /* activate PLL */
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72 for( i = 0; i <= 2000; i++ ) /* Wait for stabilisation */
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76 while( LOCK ) /* Wait for PLL frequency stabiliasation */
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80 SELPLL = 1; /* Set CPU operation to PLL mode */
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84 /*-----------------------------------------------------------*/
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