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Richard Barry 2010-09-23 18:11:20 +00:00
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20100923-V6.1.0-RC2/Demo/ARM7_STR71x_IAR/ParTest/ParTest.c Normal file
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/*
FreeRTOS V6.1.0 - Copyright (C) 2010 Real Time Engineers Ltd.
***************************************************************************
* *
* If you are: *
* *
* + New to FreeRTOS, *
* + Wanting to learn FreeRTOS or multitasking in general quickly *
* + Looking for basic training, *
* + Wanting to improve your FreeRTOS skills and productivity *
* *
* then take a look at the FreeRTOS books - available as PDF or paperback *
* *
* "Using the FreeRTOS Real Time Kernel - a Practical Guide" *
* http://www.FreeRTOS.org/Documentation *
* *
* A pdf reference manual is also available. Both are usually delivered *
* to your inbox within 20 minutes to two hours when purchased between 8am *
* and 8pm GMT (although please allow up to 24 hours in case of *
* exceptional circumstances). 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 exception 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.
*/
/* Library includes. */
#include "GPIO.h"
/* Scheduler includes. */
#include "FreeRTOS.h"
/* Demo application includes. */
#include "partest.h"
/*-----------------------------------------------------------
* Simple parallel port IO routines for the LED's - which are
* connected to the second nibble of GPIO port 1.
*-----------------------------------------------------------*/
#define partstLED_3 0x0080
#define partstLED_2 0x0040
#define partstLED_1 0x0020
#define partstLED_0 0x0010
#define partstON_BOARD 0x0100 /* The LED built onto the KickStart board. */
#define partstALL_LEDs ( partstLED_0 | partstLED_1 | partstLED_2 | partstLED_3 | partstON_BOARD )
#define partstFIRST_LED_BIT 4
/* This demo application uses files that are common to all port demo
applications. These files assume 6 LED's are available, whereas I have
only 5 (including the LED built onto the development board). To prevent
two tasks trying to use the same LED a bit of remapping is performed.
The ComTest tasks will try and use LED's 6 and 7. LED 6 is ignored and
has no effect, LED 7 is mapped to LED3. The LED usage is described in
the port documentation available from the FreeRTOS.org WEB site. */
#define partstCOM_TEST_LED 7
#define partstRX_CHAR_LED 3
/*-----------------------------------------------------------*/
void vParTestInitialise( void )
{
/* Configure the bits used to flash LED's on port 1 as output. */
GPIO_Config(GPIO1, partstALL_LEDs, GPIO_OUT_OD);
}
/*-----------------------------------------------------------*/
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
{
if( uxLED == partstCOM_TEST_LED )
{
/* Remap as described above. */
uxLED = partstRX_CHAR_LED;
}
/* Adjust the LED value to map to the port pins actually being used,
then write the required value to the port. */
uxLED += partstFIRST_LED_BIT;
GPIO_BitWrite( GPIO1, uxLED, !xValue );
}
/*-----------------------------------------------------------*/
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
if( uxLED == partstCOM_TEST_LED )
{
/* Remap as described above. */
uxLED = partstRX_CHAR_LED;
}
/* Adjust the LED value to map to the port pins actually being used,
then write the opposite value to the current state to the port pin. */
uxLED += partstFIRST_LED_BIT;
GPIO_BitWrite(GPIO1, uxLED, ~GPIO_BitRead( GPIO1, uxLED ) );
}