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129 lines
5.5 KiB
C
129 lines
5.5 KiB
C
/*
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FreeRTOS V6.0.5 - Copyright (C) 2010 Real Time Engineers Ltd.
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***************************************************************************
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* *
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* If you are: *
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* *
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* + New to FreeRTOS, *
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* + Wanting to learn FreeRTOS or multitasking in general quickly *
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* + Looking for basic training, *
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* + Wanting to improve your FreeRTOS skills and productivity *
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* *
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* then take a look at the FreeRTOS eBook *
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* *
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* "Using the FreeRTOS Real Time Kernel - a Practical Guide" *
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* http://www.FreeRTOS.org/Documentation *
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* *
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* A pdf reference manual is also available. Both are usually delivered *
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* to your inbox within 20 minutes to two hours when purchased between 8am *
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* and 8pm GMT (although please allow up to 24 hours in case of *
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* exceptional circumstances). Thank you for your support! *
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* *
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***************************************************************************
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This file is part of the FreeRTOS distribution.
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FreeRTOS is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License (version 2) as published by the
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Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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***NOTE*** The exception to the GPL is included to allow you to distribute
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a combined work that includes FreeRTOS without being obliged to provide the
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source code for proprietary components outside of the FreeRTOS kernel.
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details. You should have received a copy of the GNU General Public
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License and the FreeRTOS license exception along with FreeRTOS; if not it
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can be viewed here: http://www.freertos.org/a00114.html and also obtained
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by writing to Richard Barry, contact details for whom are available on the
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FreeRTOS WEB site.
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1 tab == 4 spaces!
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http://www.FreeRTOS.org - Documentation, latest information, license and
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contact details.
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http://www.SafeRTOS.com - A version that is certified for use in safety
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critical systems.
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http://www.OpenRTOS.com - Commercial support, development, porting,
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licensing and training services.
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*/
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/* Library includes. */
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#include "GPIO.h"
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/* Scheduler includes. */
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#include "FreeRTOS.h"
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/* Demo application includes. */
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#include "partest.h"
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/*-----------------------------------------------------------
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* Simple parallel port IO routines for the LED's - which are
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* connected to the second nibble of GPIO port 1.
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*-----------------------------------------------------------*/
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#define partstLED_3 0x0080
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#define partstLED_2 0x0040
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#define partstLED_1 0x0020
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#define partstLED_0 0x0010
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#define partstON_BOARD 0x0100 /* The LED built onto the KickStart board. */
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#define partstALL_LEDs ( partstLED_0 | partstLED_1 | partstLED_2 | partstLED_3 | partstON_BOARD )
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#define partstFIRST_LED_BIT 4
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/* This demo application uses files that are common to all port demo
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applications. These files assume 6 LED's are available, whereas I have
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only 5 (including the LED built onto the development board). To prevent
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two tasks trying to use the same LED a bit of remapping is performed.
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The ComTest tasks will try and use LED's 6 and 7. LED 6 is ignored and
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has no effect, LED 7 is mapped to LED3. The LED usage is described in
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the port documentation available from the FreeRTOS.org WEB site. */
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#define partstCOM_TEST_LED 7
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#define partstRX_CHAR_LED 3
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/*-----------------------------------------------------------*/
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void vParTestInitialise( void )
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{
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/* Configure the bits used to flash LED's on port 1 as output. */
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GPIO_Config(GPIO1, partstALL_LEDs, GPIO_OUT_OD);
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}
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/*-----------------------------------------------------------*/
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void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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{
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if( uxLED == partstCOM_TEST_LED )
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{
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/* Remap as described above. */
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uxLED = partstRX_CHAR_LED;
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}
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/* Adjust the LED value to map to the port pins actually being used,
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then write the required value to the port. */
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uxLED += partstFIRST_LED_BIT;
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GPIO_BitWrite( GPIO1, uxLED, !xValue );
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}
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/*-----------------------------------------------------------*/
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void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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{
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if( uxLED == partstCOM_TEST_LED )
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{
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/* Remap as described above. */
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uxLED = partstRX_CHAR_LED;
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}
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/* Adjust the LED value to map to the port pins actually being used,
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then write the opposite value to the current state to the port pin. */
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uxLED += partstFIRST_LED_BIT;
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GPIO_BitWrite(GPIO1, uxLED, ~GPIO_BitRead( GPIO1, uxLED ) );
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}
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