2 * FreeRTOS Kernel V10.2.1
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3 * Copyright (C) 2019 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.
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 * http://www.FreeRTOS.org
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23 * http://aws.amazon.com/freertos
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25 * 1 tab == 4 spaces!
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28 /*-----------------------------------------------------------
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29 * Simple parallel port IO routines.
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30 *-----------------------------------------------------------*/
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32 /* FreeRTOS.org includes. */
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33 #include "FreeRTOS.h"
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35 #include "partest.h"
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37 #define partstMAX_OUTPUT_LED ( 2 )
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38 #define partstFIRST_LED GPIO_Pin_8
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40 static unsigned short usOutputValue = 0;
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42 /*-----------------------------------------------------------*/
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44 void vParTestInitialise( void )
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46 GPIO_InitTypeDef GPIO_InitStructure;
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48 /* Enable LED GPIO clock. */
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49 RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB, ENABLE );
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51 /* Configure LED pins as output push-pull. */
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52 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 ;
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53 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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54 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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56 GPIO_Init( GPIOB, &GPIO_InitStructure );
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58 /*-----------------------------------------------------------*/
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60 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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62 unsigned short usBit;
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66 if( uxLED < partstMAX_OUTPUT_LED )
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68 usBit = partstFIRST_LED << uxLED;
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70 if( xValue == pdFALSE )
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72 usBit ^= ( unsigned short ) 0xffff;
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73 usOutputValue &= usBit;
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77 usOutputValue |= usBit;
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80 GPIO_Write( GPIOB, usOutputValue );
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85 /*-----------------------------------------------------------*/
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87 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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89 unsigned short usBit;
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93 if( uxLED < partstMAX_OUTPUT_LED )
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95 usBit = partstFIRST_LED << uxLED;
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97 if( usOutputValue & usBit )
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99 usOutputValue &= ~usBit;
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103 usOutputValue |= usBit;
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106 GPIO_Write( GPIOB, usOutputValue );
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111 /*-----------------------------------------------------------*/
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