2 * FreeRTOS Kernel V10.0.0
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3 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software. If you wish to use our Amazon
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14 * FreeRTOS name, please do so in a fair use way that does not cause confusion.
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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18 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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19 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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23 * http://www.FreeRTOS.org
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24 * http://aws.amazon.com/freertos
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26 * 1 tab == 4 spaces!
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29 /*-----------------------------------------------------------
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30 * Simple parallel port IO routines.
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31 *-----------------------------------------------------------*/
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33 /* FreeRTOS.org includes. */
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34 #include "FreeRTOS.h"
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36 #include "partest.h"
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38 #define partstMAX_OUTPUT_LED ( 2 )
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39 #define partstFIRST_LED GPIO_Pin_8
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41 static unsigned short usOutputValue = 0;
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43 /*-----------------------------------------------------------*/
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45 void vParTestInitialise( void )
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47 GPIO_InitTypeDef GPIO_InitStructure;
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49 /* Enable LED GPIO clock. */
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50 RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB, ENABLE );
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52 /* Configure LED pins as output push-pull. */
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53 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 ;
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54 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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55 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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57 GPIO_Init( GPIOB, &GPIO_InitStructure );
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59 /*-----------------------------------------------------------*/
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61 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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63 unsigned short usBit;
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67 if( uxLED < partstMAX_OUTPUT_LED )
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69 usBit = partstFIRST_LED << uxLED;
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71 if( xValue == pdFALSE )
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73 usBit ^= ( unsigned short ) 0xffff;
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74 usOutputValue &= usBit;
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78 usOutputValue |= usBit;
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81 GPIO_Write( GPIOB, usOutputValue );
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86 /*-----------------------------------------------------------*/
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88 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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90 unsigned short usBit;
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94 if( uxLED < partstMAX_OUTPUT_LED )
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96 usBit = partstFIRST_LED << uxLED;
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98 if( usOutputValue & usBit )
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100 usOutputValue &= ~usBit;
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104 usOutputValue |= usBit;
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107 GPIO_Write( GPIOB, usOutputValue );
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112 /*-----------------------------------------------------------*/
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