3 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
6 * this software and associated documentation files (the "Software"), to deal in
7 * the Software without restriction, including without limitation the rights to
8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
9 * the Software, and to permit persons to whom the Software is furnished to do so,
10 * subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in all
13 * copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * http://www.FreeRTOS.org
23 * http://aws.amazon.com/freertos
28 /*-----------------------------------------------------------
29 * Simple parallel port IO routines.
30 *-----------------------------------------------------------*/
42 #define partstPINS (GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 Z | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7)
44 #define partstALL_OUTPUTS_OFF ( ( unsigned char ) 0x00 )
45 #define partstMAX_OUTPUT_LED ( ( unsigned char ) 8 )
47 static volatile unsigned char ucOutputValue = partstALL_OUTPUTS_OFF;
49 void vParTestInitialise( void )
52 PDCWrite( PDC_LED, ucOutputValue );
54 /*-----------------------------------------------------------*/
56 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
58 unsigned char ucBit = ( unsigned char ) 1;
62 if( uxLED < partstMAX_OUTPUT_LED )
64 ucBit = ( ( unsigned char ) 1 ) << uxLED;
66 if( xValue == pdFALSE )
68 ucBit ^= ( unsigned char ) 0xff;
69 ucOutputValue &= ucBit;
73 ucOutputValue |= ucBit;
76 PDCWrite( PDC_LED, ucOutputValue );
81 /*-----------------------------------------------------------*/
83 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
89 if( uxLED < partstMAX_OUTPUT_LED )
91 ucBit = ( ( unsigned char ) 1 ) << uxLED;
93 if( ucOutputValue & ucBit )
95 ucOutputValue &= ~ucBit;
99 ucOutputValue |= ucBit;
102 PDCWrite( PDC_LED, ucOutputValue );