2 FreeRTOS V8.1.0 - Copyright (C) 2014 Real Time Engineers Ltd.
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5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 ***************************************************************************
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9 * FreeRTOS provides completely free yet professionally developed, *
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10 * robust, strictly quality controlled, supported, and cross *
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11 * platform software that has become a de facto standard. *
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13 * Help yourself get started quickly and support the FreeRTOS *
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14 * project by purchasing a FreeRTOS tutorial book, reference *
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15 * manual, or both from: http://www.FreeRTOS.org/Documentation *
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19 ***************************************************************************
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21 This file is part of the FreeRTOS distribution.
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23 FreeRTOS is free software; you can redistribute it and/or modify it under
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24 the terms of the GNU General Public License (version 2) as published by the
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25 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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27 >>! NOTE: The modification to the GPL is included to allow you to !<<
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28 >>! distribute a combined work that includes FreeRTOS without being !<<
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29 >>! obliged to provide the source code for proprietary components !<<
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30 >>! outside of the FreeRTOS kernel. !<<
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32 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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33 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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34 FOR A PARTICULAR PURPOSE. Full license text is available from the following
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35 link: http://www.freertos.org/a00114.html
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39 ***************************************************************************
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41 * Having a problem? Start by reading the FAQ "My application does *
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42 * not run, what could be wrong?" *
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44 * http://www.FreeRTOS.org/FAQHelp.html *
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46 ***************************************************************************
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48 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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49 license and Real Time Engineers Ltd. contact details.
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51 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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52 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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53 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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55 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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56 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
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57 licenses offer ticketed support, indemnification and middleware.
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59 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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60 engineered and independently SIL3 certified version for use in safety and
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61 mission critical applications that require provable dependability.
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66 /* Simple LED IO functions. LED 0 is toggled by a timer every half second. */
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68 /* FreeRTOS includes. */
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69 #include "FreeRTOS.h"
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72 /* Library includes. */
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73 #include "lpc18xx_gpio.h"
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74 #include "lpc18xx_scu.h"
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75 #include "lpc18xx_cgu.h"
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77 #define ledTOGGLE_RATE ( 500 / portTICK_RATE_MS )
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79 #define ledLED0_PORT 1
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80 #define ledLED0_BIT ( 1UL << 11UL )
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82 #define ledLED1_PORT 2
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83 #define ledLED1_BIT ( 1UL << 12UL )
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86 * Toggles an LED just to show the application is running.
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88 static void prvLEDToggleTimerCallback( xTimerHandle xTimer );
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90 /*-----------------------------------------------------------*/
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92 void vLEDsInitialise( void )
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94 static xTimerHandle xLEDToggleTimer = NULL;
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96 /* Set the LED pin-muxing and configure as output. */
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97 scu_pinmux( 0x2 , 11, MD_PUP, FUNC0 );
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98 scu_pinmux( 0x2 , 12, MD_PUP, FUNC0 );
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99 GPIO_SetDir( ledLED0_PORT, ledLED0_BIT, 1 );
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100 GPIO_SetDir( ledLED1_PORT, ledLED1_BIT, 1 );
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102 /* Create the timer used to toggle LED0. */
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103 xLEDToggleTimer = xTimerCreate( "LEDTmr", /* Just a text name to associate with the timer, useful for debugging, but not used by the kernel. */
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104 ledTOGGLE_RATE, /* The period of the timer. */
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105 pdTRUE, /* This timer will autoreload, so uxAutoReload is set to pdTRUE. */
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106 NULL, /* The timer ID is not used, so can be set to NULL. */
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107 prvLEDToggleTimerCallback ); /* The callback function executed each time the timer expires. */
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109 /* Sanity check that the timer was actually created. */
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110 configASSERT( xLEDToggleTimer );
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112 /* Start the timer. If this is called before the scheduler is started then
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113 the block time will automatically get changed to 0 (from portMAX_DELAY). */
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114 xTimerStart( xLEDToggleTimer, portMAX_DELAY );
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116 /*-----------------------------------------------------------*/
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118 static void prvLEDToggleTimerCallback( xTimerHandle xTimer )
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120 static uint8_t ucState = 0;
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122 /* Remove compiler warnings. */
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125 /* Just toggle an LED to show the program is running. */
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128 GPIO_SetValue( ledLED0_PORT, ledLED0_BIT );
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132 GPIO_ClearValue( ledLED0_PORT, ledLED0_BIT );
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135 ucState = !ucState;
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