mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-04-22 06:21:58 -04:00
156 lines
5.2 KiB
C
156 lines
5.2 KiB
C
/*
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FreeRTOS.org V5.4.0 - Copyright (C) 2003-2009 Richard Barry.
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This file is part of the FreeRTOS.org distribution.
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FreeRTOS.org is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License (version 2) as published
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by the 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 a
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combined work that includes FreeRTOS.org without being obliged to provide
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the source code for any proprietary components. Alternative commercial
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license and support terms are also available upon request. See the
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licensing section of http://www.FreeRTOS.org for full details.
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FreeRTOS.org 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.
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You should have received a copy of the GNU General Public License along
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with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59
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Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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***************************************************************************
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* *
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* Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
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* *
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* This is a concise, step by step, 'hands on' guide that describes both *
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* general multitasking concepts and FreeRTOS specifics. It presents and *
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* explains numerous examples that are written using the FreeRTOS API. *
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* Full source code for all the examples is provided in an accompanying *
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* .zip file. *
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* *
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***************************************************************************
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1 tab == 4 spaces!
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Please ensure to read the configuration and relevant port sections of the
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online documentation.
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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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/*-----------------------------------------------------------
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* Simple parallel port IO routines.
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*-----------------------------------------------------------*/
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/* FreeRTOS.org includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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#include "partest.h"
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/* Standard includes. */
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#include <string.h>
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/* Library includes. */
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#include "stm32f10x_lib.h"
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#define partstNUM_LEDs 4
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/* Holds the current output state for each of the LEDs. */
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static unsigned char ucBitStates[ partstNUM_LEDs ];
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/* Holds the port used by each of the LEDs. */
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static GPIO_TypeDef * uxIO_Port[ partstNUM_LEDs ];
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/* Holds the pin used by each of the LEDs. */
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static const unsigned short uxIO_Pins[ partstNUM_LEDs ] = { GPIO_Pin_14, GPIO_Pin_13, GPIO_Pin_3, GPIO_Pin_4 };
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/*-----------------------------------------------------------*/
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void vParTestInitialise( void )
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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/* Configure PE14, PD13, PD3 and PD4 output push-pull */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init( GPIOE, &GPIO_InitStructure );
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init( GPIOD, &GPIO_InitStructure );
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_4;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init( GPIOD, &GPIO_InitStructure );
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memset( ucBitStates, 0x00, sizeof( ucBitStates ) );
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uxIO_Port[ 0 ] = GPIOE;
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uxIO_Port[ 1 ] = GPIOD;
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uxIO_Port[ 2 ] = GPIOD;
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uxIO_Port[ 3 ] = GPIOD;
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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 < partstNUM_LEDs )
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{
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portENTER_CRITICAL();
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{
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if( xValue != pdFALSE )
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{
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ucBitStates[ uxLED ] = pdTRUE;
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}
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else
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{
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ucBitStates[ uxLED ] = pdFALSE;
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}
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GPIO_WriteBit( uxIO_Port[ uxLED ], uxIO_Pins[ uxLED ], ucBitStates[ uxLED ] );
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}
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portEXIT_CRITICAL();
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}
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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 < partstNUM_LEDs )
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{
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portENTER_CRITICAL();
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{
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ucBitStates[ uxLED ] = !ucBitStates[ uxLED ];
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GPIO_WriteBit( uxIO_Port[ uxLED ], uxIO_Pins[ uxLED ], ucBitStates[ uxLED ] );
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}
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portEXIT_CRITICAL();
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}
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}
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/*-----------------------------------------------------------*/
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portBASE_TYPE xGetLEDState( unsigned portBASE_TYPE uxLED )
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{
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if( uxLED < partstNUM_LEDs )
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{
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return ( portBASE_TYPE ) ucBitStates[ uxLED ];
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}
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else
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{
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return 0;
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}
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}
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