/* | |
FreeRTOS.org V5.1.2 - 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 as published by | |
the Free Software Foundation; either version 2 of the License, or | |
(at your option) any later version. | |
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 | |
A special exception to the GPL can be applied should you wish to distribute | |
a combined work that includes FreeRTOS.org, without being obliged to provide | |
the source code for any proprietary components. See the licensing section | |
of http://www.FreeRTOS.org for full details of how and when the exception | |
can be applied. | |
*************************************************************************** | |
*************************************************************************** | |
* * | |
* 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. * | |
* * | |
*************************************************************************** | |
*************************************************************************** | |
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; | |
} | |
/*-----------------------------------------------------------*/ |