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.
158 lines
6.2 KiB
C
158 lines
6.2 KiB
C
/*
|
|
FreeRTOS V8.2.1 - Copyright (C) 2015 Real Time Engineers Ltd.
|
|
All rights reserved
|
|
|
|
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
|
|
|
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 on the following
|
|
link: http://www.freertos.org/a00114.html
|
|
|
|
***************************************************************************
|
|
* *
|
|
* FreeRTOS provides completely free yet professionally developed, *
|
|
* robust, strictly quality controlled, supported, and cross *
|
|
* platform software that is more than just the market leader, it *
|
|
* is the industry's de facto standard. *
|
|
* *
|
|
* Help yourself get started quickly while simultaneously helping *
|
|
* to support the FreeRTOS project by purchasing a FreeRTOS *
|
|
* tutorial book, reference manual, or both: *
|
|
* http://www.FreeRTOS.org/Documentation *
|
|
* *
|
|
***************************************************************************
|
|
|
|
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
|
|
the FAQ page "My application does not run, what could be wrong?". Have you
|
|
defined configASSERT()?
|
|
|
|
http://www.FreeRTOS.org/support - In return for receiving this top quality
|
|
embedded software for free we request you assist our global community by
|
|
participating in the support forum.
|
|
|
|
http://www.FreeRTOS.org/training - Investing in training allows your team to
|
|
be as productive as possible as early as possible. Now you can receive
|
|
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
|
|
Ltd, and the world's leading authority on the world's leading RTOS.
|
|
|
|
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.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
|
|
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
|
|
|
|
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
|
|
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
|
|
licenses offer ticketed support, indemnification and commercial 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!
|
|
*/
|
|
|
|
/* Scheduler includes. */
|
|
#include "FreeRTOS.h"
|
|
#include "portable.h"
|
|
|
|
/* Demo app includes. */
|
|
#include "partest.h"
|
|
|
|
/* Hardware specific definitions. */
|
|
#include "AT91R40008.h"
|
|
#include "pio.h"
|
|
#include "aic.h"
|
|
|
|
#define partstNUM_LEDS ( 8 )
|
|
#define partstALL_OUTPUTS_OFF ( ( unsigned long ) ~(0xFFFFFFFF << partstNUM_LEDS) )
|
|
|
|
static unsigned long ulLEDReg;
|
|
|
|
/*-----------------------------------------------------------
|
|
* Simple parallel port IO routines.
|
|
*-----------------------------------------------------------*/
|
|
|
|
static void SetLeds (unsigned int leds)
|
|
{
|
|
unsigned long ulPIOSetReg, ulPIOClearReg;
|
|
|
|
/* LEDs are grouped in different port bits: P3-P6 and P16-P19.
|
|
A port bit set to '0' turns an LED on, '1' turns it off. */
|
|
|
|
ulPIOSetReg = ( (leds & 0xF) << 16 ) | ( (leds & 0xF0) >> 1 );
|
|
ulPIOClearReg = (~ulPIOSetReg) & 0x000F0078;
|
|
|
|
AT91C_BASE_PIO->PIO_SODR = ulPIOSetReg;
|
|
AT91C_BASE_PIO->PIO_CODR = ulPIOClearReg;
|
|
}
|
|
/*-----------------------------------------------------------*/
|
|
|
|
void vParTestInitialise( void )
|
|
{
|
|
/* This is performed from main() as the io bits are shared with other setup
|
|
functions. Ensure the outputs are off to start. */
|
|
ulLEDReg = partstALL_OUTPUTS_OFF;
|
|
|
|
/* Enable clock to PIO... */
|
|
AT91C_BASE_PS->PS_PCER = AT91C_PS_PIO;
|
|
|
|
/* Enable all 8 LEDs and the four switches to be controlled by PIO... */
|
|
AT91C_BASE_PIO->PIO_PER = P3 | P4 | P5 | P6 | P16 | P17 | P18 | P19 | P1 | P2 | P9 | P12;
|
|
|
|
/* Configure all LED PIO lines for output... */
|
|
AT91C_BASE_PIO->PIO_OER = P3 | P4 | P5 | P6 | P16 | P17 | P18 | P19;
|
|
|
|
/* Configure all switch PIO lines for input... */
|
|
AT91C_BASE_PIO->PIO_ODR = P1 | P2 | P9 | P12;
|
|
|
|
/* Set initial state of LEDs. */
|
|
SetLeds( ulLEDReg );
|
|
}
|
|
/*-----------------------------------------------------------*/
|
|
|
|
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
|
|
{
|
|
/* Switch an LED on or off as requested. */
|
|
if (uxLED < partstNUM_LEDS)
|
|
{
|
|
if( xValue )
|
|
{
|
|
ulLEDReg &= ~(1 << uxLED);
|
|
}
|
|
else
|
|
{
|
|
ulLEDReg |= (1 << uxLED);
|
|
}
|
|
|
|
SetLeds( ulLEDReg );
|
|
}
|
|
}
|
|
/*-----------------------------------------------------------*/
|
|
|
|
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
|
|
{
|
|
/* Toggle the state of the requested LED. */
|
|
if (uxLED < partstNUM_LEDS)
|
|
{
|
|
ulLEDReg ^= ( 1 << uxLED );
|
|
SetLeds( ulLEDReg );
|
|
}
|
|
}
|
|
|