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 /* Scheduler includes. */
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30 #include "FreeRTOS.h"
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32 /* Demo app includes. */
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33 #include "partest.h"
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38 unsigned portBASE_TYPE uxOutput;
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40 /*-----------------------------------------------------------
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41 * Simple parallel port IO routines.
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42 *-----------------------------------------------------------*/
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44 void vParTestInitialise( void )
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46 /* The explorer 16 board has LED's on port A. All bits are set as output
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47 so PORTA is read-modified-written directly. Two pins have change
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48 notification pullups that need disabling. */
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49 CNPU2bits.CN22PUE = 0;
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50 CNPU2bits.CN23PUE = 0;
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53 uxOutput = ptALL_OFF;
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55 /*-----------------------------------------------------------*/
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57 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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59 unsigned portBASE_TYPE uxLEDBit;
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61 /* Which port A bit is being modified? */
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62 uxLEDBit = 1 << uxLED;
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66 /* Turn the LED on. */
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67 portENTER_CRITICAL();
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69 uxOutput |= uxLEDBit;
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72 portEXIT_CRITICAL();
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76 /* Turn the LED off. */
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77 portENTER_CRITICAL();
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79 uxOutput &= ~uxLEDBit;
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82 portEXIT_CRITICAL();
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85 /*-----------------------------------------------------------*/
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87 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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89 unsigned portBASE_TYPE uxLEDBit;
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91 uxLEDBit = 1 << uxLED;
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92 portENTER_CRITICAL();
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94 /* If the LED is already on - turn it off. If the LED is already
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96 if( uxOutput & uxLEDBit )
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98 uxOutput &= ~uxLEDBit;
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103 uxOutput |= uxLEDBit;
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107 portEXIT_CRITICAL();
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