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.
116 lines
5.2 KiB
C
116 lines
5.2 KiB
C
/*
|
|
FreeRTOS V8.0.0 - Copyright (C) 2014 Real Time Engineers Ltd.
|
|
All rights reserved
|
|
|
|
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
|
|
|
***************************************************************************
|
|
* *
|
|
* FreeRTOS provides completely free yet professionally developed, *
|
|
* robust, strictly quality controlled, supported, and cross *
|
|
* platform software that has become a de facto standard. *
|
|
* *
|
|
* Help yourself get started quickly and support the FreeRTOS *
|
|
* project by purchasing a FreeRTOS tutorial book, reference *
|
|
* manual, or both from: http://www.FreeRTOS.org/Documentation *
|
|
* *
|
|
* Thank you! *
|
|
* *
|
|
***************************************************************************
|
|
|
|
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. Full license text is available from the following
|
|
link: http://www.freertos.org/a00114.html
|
|
|
|
1 tab == 4 spaces!
|
|
|
|
***************************************************************************
|
|
* *
|
|
* Having a problem? Start by reading the FAQ "My application does *
|
|
* not run, what could be wrong?" *
|
|
* *
|
|
* http://www.FreeRTOS.org/FAQHelp.html *
|
|
* *
|
|
***************************************************************************
|
|
|
|
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
|
|
license and Real Time Engineers Ltd. contact details.
|
|
|
|
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
|
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
|
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
|
|
|
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
|
|
Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
|
|
licenses offer ticketed support, indemnification and middleware.
|
|
|
|
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
|
|
engineered and independently SIL3 certified version for use in safety and
|
|
mission critical applications that require provable dependability.
|
|
|
|
1 tab == 4 spaces!
|
|
*/
|
|
|
|
#include "FreeRTOS.h"
|
|
|
|
/*-----------------------------------------------------------*/
|
|
|
|
/* Called by the startup code to initialise the run time system. */
|
|
unsigned char __low_level_init(void);
|
|
|
|
/*-----------------------------------------------------------*/
|
|
|
|
unsigned char __low_level_init(void)
|
|
{
|
|
unsigned char resetflag = RESF;
|
|
unsigned char 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;
|
|
}
|
|
/*-----------------------------------------------------------*/
|