| /* | |
| FreeRTOS.org V5.3.1 - Copyright (C) 2003-2009 Richard Barry. | |
| This file is part of the FreeRTOS.org distribution. | |
| FreeRTOS.org is free software; you can redistribute it and/or modify it | |
| under the terms of the GNU General Public License (version 2) as published | |
| by the Free Software Foundation and modified by the FreeRTOS exception. | |
| **NOTE** The exception to the GPL is included to allow you to distribute a | |
| combined work that includes FreeRTOS.org without being obliged to provide | |
| the source code for any proprietary components. Alternative commercial | |
| license and support terms are also available upon request. See the | |
| licensing section of http://www.FreeRTOS.org for full details. | |
| FreeRTOS.org is distributed in the hope that it will be useful, but WITHOUT | |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| more details. | |
| You should have received a copy of the GNU General Public License along | |
| with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59 | |
| Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
| *************************************************************************** | |
| * * | |
| * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation * | |
| * * | |
| * This is a concise, step by step, 'hands on' guide that describes both * | |
| * general multitasking concepts and FreeRTOS specifics. It presents and * | |
| * explains numerous examples that are written using the FreeRTOS API. * | |
| * Full source code for all the examples is provided in an accompanying * | |
| * .zip file. * | |
| * * | |
| *************************************************************************** | |
| 1 tab == 4 spaces! | |
| Please ensure to read the configuration and relevant port sections of the | |
| online documentation. | |
| http://www.FreeRTOS.org - Documentation, latest information, license and | |
| contact details. | |
| http://www.SafeRTOS.com - A version that is certified for use in safety | |
| critical systems. | |
| http://www.OpenRTOS.com - Commercial support, development, porting, | |
| licensing and training services. | |
| */ | |
| #include "FreeRTOS.h" | |
| /*-----------------------------------------------------------*/ | |
| /* Called by the startup code to initialise the run time system. */ | |
| unsigned portCHAR __low_level_init(void); | |
| /*-----------------------------------------------------------*/ | |
| unsigned portCHAR __low_level_init(void) | |
| { | |
| unsigned portCHAR resetflag = RESF; | |
| unsigned portCHAR psval = 0; | |
| unsigned portBASE_TYPE i = 0; | |
| /* Setup provided by NEC. */ | |
| portDISABLE_INTERRUPTS(); /* disable global interrupts */ | |
| PRCMD = 0x00; /* On-chip debug mode */ | |
| OCDM = 0x00; | |
| VSWC = 0x00; /* set system wait control register */ | |
| WDTM2 = 0x00; /* WDT2 setting */ | |
| PLLON = 0; /* PLL stop mode */ | |
| psval = 0x0A | 0x00; | |
| PRCMD = psval; /* set Command Register */ | |
| CKC = psval; /* set Clock Control Register */ | |
| PLLS = 0x03; | |
| psval = 0x80; /* Set fXX and fCPU */ | |
| PRCMD = psval; | |
| PCC = psval; | |
| PLLON = 1; /* activate PLL */ | |
| for( i = 0; i <= 2000; i++ ) /* Wait for stabilisation */ | |
| { | |
| portNOP(); | |
| } | |
| while( LOCK ) /* Wait for PLL frequency stabiliasation */ | |
| { | |
| ; | |
| } | |
| SELPLL = 1; /* Set PLL mode active */ | |
| RSTOP = 0; /* Set fR (enable) */ | |
| BGCE0 = 0; /* Set fBRG(disable) */ | |
| psval = 0x00; /* Stand-by setting */ | |
| PRCMD = psval; /* set Command Register */ | |
| PSC = psval; /* set Power Save Control Register */ | |
| return pdTRUE; | |
| } | |
| /*-----------------------------------------------------------*/ |