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
17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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
32 + Add vParTestToggleLED();
36 + Use scheduler suspends in place of critical sections.
44 #define partstALL_OUTPUTS_OFF ( ( unsigned short) 0x00 )
45 #define partstMAX_OUTPUT_LED ( ( unsigned char ) 7 )
46 #define partstPORT_F_ADDR ( ( unsigned short ) 0x605 )
47 #define partstPORT_DIRECTION_REG ( ( unsigned short ) 0x606 )
48 #define partstPORT_F_DIR_BIT ( ( unsigned short ) 0x20 )
50 /*lint -e956 File scope parameters okay here. */
51 static volatile unsigned char ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
54 /*-----------------------------------------------------------
55 * Simple parallel port IO routines.
56 *-----------------------------------------------------------*/
58 void vParTestInitialise( void )
60 unsigned short usInput;
62 ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
64 /* Set the direction to output for port F. */
65 usInput = portINPUT_BYTE( partstPORT_DIRECTION_REG );
66 usInput |= partstPORT_F_DIR_BIT;
67 portOUTPUT_BYTE( partstPORT_DIRECTION_REG, usInput );
69 /* Start with all outputs off. */
70 portOUTPUT_BYTE( partstPORT_F_ADDR, partstALL_OUTPUTS_OFF );
72 /*-----------------------------------------------------------*/
74 void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue )
76 unsigned char ucBit = ( unsigned char ) 1;
78 if( uxLED <= partstMAX_OUTPUT_LED )
85 if( xValue == pdTRUE )
87 ucBit ^= ( unsigned char ) 0xff;
88 ucCurrentOutputValue &= ucBit;
92 ucCurrentOutputValue |= ucBit;
95 portOUTPUT_BYTE( partstPORT_F_ADDR, ( unsigned ) ucCurrentOutputValue );
99 /*-----------------------------------------------------------*/
101 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
105 if( uxLED <= partstMAX_OUTPUT_LED )
107 ucBit = ( ( unsigned char ) 1 ) << uxLED;
111 if( ucCurrentOutputValue & ucBit )
113 ucCurrentOutputValue &= ~ucBit;
117 ucCurrentOutputValue |= ucBit;
120 portOUTPUT_BYTE( partstPORT_F_ADDR, ( unsigned ) ucCurrentOutputValue );