2 * FreeRTOS Kernel V10.0.1
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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.
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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 /* Standard includes. */
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40 /* Library includes. */
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41 #include "stm32f10x_lib.h"
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43 #define partstNUM_LEDs 4
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45 /* Holds the current output state for each of the LEDs. */
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46 static unsigned char ucBitStates[ partstNUM_LEDs ];
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48 /* Holds the port used by each of the LEDs. */
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49 static GPIO_TypeDef * uxIO_Port[ partstNUM_LEDs ];
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51 /* Holds the pin used by each of the LEDs. */
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52 static const unsigned short uxIO_Pins[ partstNUM_LEDs ] = { GPIO_Pin_14, GPIO_Pin_13, GPIO_Pin_3, GPIO_Pin_4 };
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54 /*-----------------------------------------------------------*/
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56 void vParTestInitialise( void )
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58 GPIO_InitTypeDef GPIO_InitStructure;
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60 /* Configure PE14, PD13, PD3 and PD4 output push-pull */
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61 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;
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62 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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63 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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64 GPIO_Init( GPIOE, &GPIO_InitStructure );
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66 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
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67 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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68 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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69 GPIO_Init( GPIOD, &GPIO_InitStructure );
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71 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_4;
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72 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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73 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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74 GPIO_Init( GPIOD, &GPIO_InitStructure );
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76 memset( ucBitStates, 0x00, sizeof( ucBitStates ) );
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78 uxIO_Port[ 0 ] = GPIOE;
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79 uxIO_Port[ 1 ] = GPIOD;
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80 uxIO_Port[ 2 ] = GPIOD;
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81 uxIO_Port[ 3 ] = GPIOD;
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83 /*-----------------------------------------------------------*/
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85 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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87 if( uxLED < partstNUM_LEDs )
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89 portENTER_CRITICAL();
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91 if( xValue != pdFALSE )
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93 ucBitStates[ uxLED ] = pdTRUE;
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97 ucBitStates[ uxLED ] = pdFALSE;
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100 GPIO_WriteBit( uxIO_Port[ uxLED ], uxIO_Pins[ uxLED ], ucBitStates[ uxLED ] );
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102 portEXIT_CRITICAL();
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105 /*-----------------------------------------------------------*/
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107 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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109 if( uxLED < partstNUM_LEDs )
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111 portENTER_CRITICAL();
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113 ucBitStates[ uxLED ] = !ucBitStates[ uxLED ];
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114 GPIO_WriteBit( uxIO_Port[ uxLED ], uxIO_Pins[ uxLED ], ucBitStates[ uxLED ] );
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116 portEXIT_CRITICAL();
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119 /*-----------------------------------------------------------*/
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121 portBASE_TYPE xGetLEDState( unsigned portBASE_TYPE uxLED )
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123 if( uxLED < partstNUM_LEDs )
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125 return ( portBASE_TYPE ) ucBitStates[ uxLED ];
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