/* FreeRTOS.org V5.1.2 - Copyright (C) 2003-2009 Richard Barry. This file is part of the FreeRTOS.org distribution. FreeRTOS.org is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. FreeRTOS.org 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 along with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA A special exception to the GPL can be applied should you wish to distribute a combined work that includes FreeRTOS.org, without being obliged to provide the source code for any proprietary components. See the licensing section of http://www.FreeRTOS.org for full details of how and when the exception can be applied. *************************************************************************** *************************************************************************** * * * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation * * * * This is a concise, step by step, 'hands on' guide that describes both * * general multitasking concepts and FreeRTOS specifics. It presents and * * explains numerous examples that are written using the FreeRTOS API. * * Full source code for all the examples is provided in an accompanying * * .zip file. * * * *************************************************************************** *************************************************************************** Please ensure to read the configuration and relevant port sections of the online documentation. 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. */ /*----------------------------------------------------------- * Characters on the LCD are used to simulate LED's. In this case the 'ParTest' * is really operating on the LCD display. *-----------------------------------------------------------*/ /* * This demo is configured to execute on the ES449 prototyping board from * SoftBaugh. The ES449 has a built in LCD display and a single built in user * LED. Therefore, in place of flashing an LED, the 'flash' and 'check' tasks * toggle '*' characters on the LCD. The left most '*' represents LED 0, the * next LED 1, etc. * * There is a single genuine on board LED referenced as LED 10. */ /* Standard includes. */ #include /* Scheduler includes. */ #include "FreeRTOS.h" #include "task.h" /* Demo application includes. */ #include "partest.h" /* Constants required to setup the LCD. */ #define LCD_DIV_64 5 /* Constants required to access the "LED's". The LED segments are turned on and off to generate '*' characters. */ #define partstNUM_LEDS ( ( unsigned portCHAR ) 6 ) #define partstSEGMENTS_ON ( ( unsigned portCHAR ) 0x0f ) #define partstSEGMENTS_OFF ( ( unsigned portCHAR ) 0x00 ) /* The LED number of the real on board LED, rather than a simulated LED. */ #define partstON_BOARD_LED ( ( unsigned portBASE_TYPE ) 10 ) #define mainON_BOARD_LED_BIT ( ( unsigned portCHAR ) 0x01 ) /* The LCD segments used to generate the '*' characters for LED's 0 to 5. */ unsigned portCHAR * const ucRHSSegments[ partstNUM_LEDS ] = { ( unsigned portCHAR * )0xa4, ( unsigned portCHAR * )0xa2, ( unsigned portCHAR * )0xa0, ( unsigned portCHAR * )0x9e, ( unsigned portCHAR * )0x9c, ( unsigned portCHAR * )0x9a }; unsigned portCHAR * const ucLHSSegments[ partstNUM_LEDS ] = { ( unsigned portCHAR * )0xa3, ( unsigned portCHAR * )0xa1, ( unsigned portCHAR * )0x9f, ( unsigned portCHAR * )0x9d, ( unsigned portCHAR * )0x9b, ( unsigned portCHAR * )0x99 }; /* * Toggle the single genuine built in LED. */ static void prvToggleOnBoardLED( void ); /*-----------------------------------------------------------*/ void vParTestInitialise( void ) { /* Initialise the LCD hardware. */ /* Used for the onboard LED. */ P1DIR = 0x01; // Setup Basic Timer for LCD operation BTCTL = (LCD_DIV_64+0x23); // Setup port functions P1SEL = 0x32; P2SEL = 0x00; P3SEL = 0x00; P4SEL = 0xFC; P5SEL = 0xFF; /* Initialise all segments to off. */ LCDM1 = partstSEGMENTS_OFF; LCDM2 = partstSEGMENTS_OFF; LCDM3 = partstSEGMENTS_OFF; LCDM4 = partstSEGMENTS_OFF; LCDM5 = partstSEGMENTS_OFF; LCDM6 = partstSEGMENTS_OFF; LCDM7 = partstSEGMENTS_OFF; LCDM8 = partstSEGMENTS_OFF; LCDM9 = partstSEGMENTS_OFF; LCDM10 = partstSEGMENTS_OFF; LCDM11 = partstSEGMENTS_OFF; LCDM12 = partstSEGMENTS_OFF; LCDM13 = partstSEGMENTS_OFF; LCDM14 = partstSEGMENTS_OFF; LCDM15 = partstSEGMENTS_OFF; LCDM16 = partstSEGMENTS_OFF; LCDM17 = partstSEGMENTS_OFF; LCDM18 = partstSEGMENTS_OFF; LCDM19 = partstSEGMENTS_OFF; LCDM20 = partstSEGMENTS_OFF; /* Setup LCD control. */ LCDCTL = (LCDSG0_7|LCD4MUX|LCDON); } /*-----------------------------------------------------------*/ void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue ) { /* Set or clear the output [in this case show or hide the '*' character. */ if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS ) { vTaskSuspendAll(); { if( xValue ) { /* Turn on the segments required to show the '*'. */ *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON; *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON; } else { /* Turn off all the segments. */ *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF; *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF; } } xTaskResumeAll(); } } /*-----------------------------------------------------------*/ void vParTestToggleLED( unsigned portBASE_TYPE uxLED ) { if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS ) { vTaskSuspendAll(); { /* If the '*' is already showing - hide it. If it is not already showing then show it. */ if( *( ucRHSSegments[ uxLED ] ) ) { *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF; *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF; } else { *( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON; *( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON; } } xTaskResumeAll(); } else { if( uxLED == partstON_BOARD_LED ) { /* The request related to the genuine on board LED. */ prvToggleOnBoardLED(); } } } /*-----------------------------------------------------------*/ static void prvToggleOnBoardLED( void ) { static unsigned portSHORT sState = pdFALSE; /* Toggle the state of the single genuine on board LED. */ if( sState ) { P1OUT |= mainON_BOARD_LED_BIT; } else { P1OUT &= ~mainON_BOARD_LED_BIT; } sState = !sState; } /*-----------------------------------------------------------*/