You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
129 lines
3.6 KiB
C
129 lines
3.6 KiB
C
/*
|
|
FreeRTOS.org V5.1.1 - Copyright (C) 2003-2008 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.
|
|
|
|
***************************************************************************
|
|
***************************************************************************
|
|
* *
|
|
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
|
|
* and even write all or part of your application on your behalf. *
|
|
* See http://www.OpenRTOS.com for details of the services we provide to *
|
|
* expedite your project. *
|
|
* *
|
|
***************************************************************************
|
|
***************************************************************************
|
|
|
|
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;
|
|
|
|
/* Setup provided by NEC. */
|
|
|
|
/* Disable global interrupts to ensure no interrupts occur during system
|
|
setup. */
|
|
portDISABLE_INTERRUPTS();
|
|
|
|
PRCMD = 0x00;
|
|
OCDM = 0x00;
|
|
VSWC = 0x12;
|
|
VSWC = 18;
|
|
|
|
/* Set main system clock */
|
|
OSTS = 0x06;
|
|
psval = 0x80;
|
|
PRCMD = psval;
|
|
PCC = psval;
|
|
while (!OSTC)
|
|
{
|
|
;
|
|
}
|
|
|
|
PLLS = 0x03;
|
|
PLLON = 1;
|
|
while (LOCKR)
|
|
{
|
|
;
|
|
}
|
|
|
|
psval = 0x01;
|
|
PRCMD = psval;
|
|
MCM = psval;
|
|
SELPLL = 1;
|
|
|
|
/* Set fCPU */
|
|
psval = PCC | 0x00;
|
|
PRCMD = psval;
|
|
PCC = psval;
|
|
RCM = 0x83;
|
|
|
|
/* Set fXP1 */
|
|
SELCNT4 = 0x00;
|
|
|
|
/* Set fBRG */
|
|
PRSM0 = 0x00;
|
|
|
|
/* Stand-by setting */
|
|
psval = 0x00;
|
|
PRCMD = psval;
|
|
PSC = psval;
|
|
|
|
/* WDT2 setting */
|
|
WDTM2 = 0x1F;
|
|
|
|
/* PCL setting */
|
|
PCLM = 0x00;
|
|
|
|
/* disable dma0 - dma3 */
|
|
E00 = 0;
|
|
E11 = 0;
|
|
E22 = 0;
|
|
E33 = 0;
|
|
|
|
return pdTRUE;
|
|
}
|
|
/*-----------------------------------------------------------*/
|