mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-04-21 22:11:57 -04:00
152 lines
4.8 KiB
C
152 lines
4.8 KiB
C
/*
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FreeRTOS V5.4.2 - Copyright (C) 2009 Real Time Engineers Ltd.
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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 a
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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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Alternative commercial license and support terms are also available upon
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request. See the licensing section of http://www.FreeRTOS.org for full
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license details.
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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.
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You should have received a copy of the GNU General Public License along
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with FreeRTOS; 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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* Looking for a quick start? Then check out the FreeRTOS eBook! *
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* See http://www.FreeRTOS.org/Documentation for details *
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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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