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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32 + Types used updated.
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33 + Add vParTestToggleLED();
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37 + Use scheduler suspends in place of critical sections.
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41 #include "FreeRTOS.h"
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43 #include "partest.h"
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45 #define partstALL_OUTPUTS_OFF ( ( unsigned short) 0x00 )
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46 #define partstMAX_OUTPUT_LED ( ( unsigned char ) 7 )
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47 #define partstPORT_F_ADDR ( ( unsigned short ) 0x605 )
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48 #define partstPORT_DIRECTION_REG ( ( unsigned short ) 0x606 )
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49 #define partstPORT_F_DIR_BIT ( ( unsigned short ) 0x20 )
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51 /*lint -e956 File scope parameters okay here. */
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52 static volatile unsigned char ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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55 /*-----------------------------------------------------------
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56 * Simple parallel port IO routines.
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57 *-----------------------------------------------------------*/
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59 void vParTestInitialise( void )
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61 unsigned short usInput;
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63 ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
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65 /* Set the direction to output for port F. */
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66 usInput = portINPUT_BYTE( partstPORT_DIRECTION_REG );
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67 usInput |= partstPORT_F_DIR_BIT;
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68 portOUTPUT_BYTE( partstPORT_DIRECTION_REG, usInput );
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70 /* Start with all outputs off. */
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71 portOUTPUT_BYTE( partstPORT_F_ADDR, partstALL_OUTPUTS_OFF );
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73 /*-----------------------------------------------------------*/
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75 void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )
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77 unsigned char ucBit = ( unsigned char ) 1;
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79 if( uxLED <= partstMAX_OUTPUT_LED )
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86 if( xValue == pdTRUE )
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88 ucBit ^= ( unsigned char ) 0xff;
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89 ucCurrentOutputValue &= ucBit;
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93 ucCurrentOutputValue |= ucBit;
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96 portOUTPUT_BYTE( partstPORT_F_ADDR, ( unsigned ) ucCurrentOutputValue );
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100 /*-----------------------------------------------------------*/
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102 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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104 unsigned char ucBit;
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106 if( uxLED <= partstMAX_OUTPUT_LED )
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108 ucBit = ( ( unsigned char ) 1 ) << uxLED;
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112 if( ucCurrentOutputValue & ucBit )
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114 ucCurrentOutputValue &= ~ucBit;
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118 ucCurrentOutputValue |= ucBit;
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121 portOUTPUT_BYTE( partstPORT_F_ADDR, ( unsigned ) ucCurrentOutputValue );
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