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.
133 lines
4.2 KiB
C
133 lines
4.2 KiB
C
/*
|
|
FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.
|
|
|
|
|
|
***************************************************************************
|
|
* *
|
|
* FreeRTOS tutorial books are available in pdf and paperback. *
|
|
* Complete, revised, and edited pdf reference manuals are also *
|
|
* available. *
|
|
* *
|
|
* Purchasing FreeRTOS documentation will not only help you, by *
|
|
* ensuring you get running as quickly as possible and with an *
|
|
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
|
* the FreeRTOS project to continue with its mission of providing *
|
|
* professional grade, cross platform, de facto standard solutions *
|
|
* for microcontrollers - completely free of charge! *
|
|
* *
|
|
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
|
* *
|
|
* Thank you for using FreeRTOS, and thank you for your support! *
|
|
* *
|
|
***************************************************************************
|
|
|
|
|
|
This file is part of the FreeRTOS distribution.
|
|
|
|
FreeRTOS 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 modification to the GPL is included to allow you to
|
|
distribute a combined work that includes FreeRTOS without being obliged to
|
|
provide the source code for proprietary components outside of the FreeRTOS
|
|
kernel. FreeRTOS 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 and the FreeRTOS license exception along with FreeRTOS; if not it
|
|
can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
|
by writing to Richard Barry, contact details for whom are available on the
|
|
FreeRTOS WEB site.
|
|
|
|
1 tab == 4 spaces!
|
|
|
|
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;
|
|
}
|
|
/*-----------------------------------------------------------*/
|