2 FreeRTOS.org V5.1.2 - Copyright (C) 2003-2009 Richard Barry.
\r
4 This file is part of the FreeRTOS.org distribution.
\r
6 FreeRTOS.org is free software; you can redistribute it and/or modify
\r
7 it under the terms of the GNU General Public License as published by
\r
8 the Free Software Foundation; either version 2 of the License, or
\r
9 (at your option) any later version.
\r
11 FreeRTOS.org is distributed in the hope that it will be useful,
\r
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
\r
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\r
14 GNU General Public License for more details.
\r
16 You should have received a copy of the GNU General Public License
\r
17 along with FreeRTOS.org; if not, write to the Free Software
\r
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
\r
20 A special exception to the GPL can be applied should you wish to distribute
\r
21 a combined work that includes FreeRTOS.org, without being obliged to provide
\r
22 the source code for any proprietary components. See the licensing section
\r
23 of http://www.FreeRTOS.org for full details of how and when the exception
\r
26 ***************************************************************************
\r
27 ***************************************************************************
\r
29 * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
\r
31 * This is a concise, step by step, 'hands on' guide that describes both *
\r
32 * general multitasking concepts and FreeRTOS specifics. It presents and *
\r
33 * explains numerous examples that are written using the FreeRTOS API. *
\r
34 * Full source code for all the examples is provided in an accompanying *
\r
37 ***************************************************************************
\r
38 ***************************************************************************
\r
40 Please ensure to read the configuration and relevant port sections of the
\r
41 online documentation.
\r
43 http://www.FreeRTOS.org - Documentation, latest information, license and
\r
46 http://www.SafeRTOS.com - A version that is certified for use in safety
\r
49 http://www.OpenRTOS.com - Commercial support, development, porting,
\r
50 licensing and training services.
\r
56 + Use scheduler suspends in place of critical sections.
\r
60 + Replaced the inb() and outb() functions with direct memory
\r
61 access. This allows the port to be built with the 20050414 build of
\r
65 #include "FreeRTOS.h"
\r
67 #include "partest.h"
\r
69 /*-----------------------------------------------------------
\r
70 * Simple parallel port IO routines.
\r
71 *-----------------------------------------------------------*/
\r
73 #define partstALL_BITS_OUTPUT ( ( unsigned portCHAR ) 0xff )
\r
74 #define partstALL_OUTPUTS_OFF ( ( unsigned portCHAR ) 0xff )
\r
75 #define partstMAX_OUTPUT_LED ( ( unsigned portCHAR ) 7 )
\r
77 static volatile unsigned portCHAR ucCurrentOutputValue = partstALL_OUTPUTS_OFF; /*lint !e956 File scope parameters okay here. */
\r
79 /*-----------------------------------------------------------*/
\r
81 void vParTestInitialise( void )
\r
83 ucCurrentOutputValue = partstALL_OUTPUTS_OFF;
\r
85 /* Set port B direction to outputs. Start with all output off. */
\r
86 DDRB = partstALL_BITS_OUTPUT;
\r
87 PORTB = ucCurrentOutputValue;
\r
89 /*-----------------------------------------------------------*/
\r
91 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
\r
93 unsigned portCHAR ucBit = ( unsigned portCHAR ) 1;
\r
95 if( uxLED <= partstMAX_OUTPUT_LED )
\r
101 if( xValue == pdTRUE )
\r
103 ucBit ^= ( unsigned portCHAR ) 0xff;
\r
104 ucCurrentOutputValue &= ucBit;
\r
108 ucCurrentOutputValue |= ucBit;
\r
111 PORTB = ucCurrentOutputValue;
\r
116 /*-----------------------------------------------------------*/
\r
118 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
\r
120 unsigned portCHAR ucBit;
\r
122 if( uxLED <= partstMAX_OUTPUT_LED )
\r
124 ucBit = ( ( unsigned portCHAR ) 1 ) << uxLED;
\r
128 if( ucCurrentOutputValue & ucBit )
\r
130 ucCurrentOutputValue &= ~ucBit;
\r
134 ucCurrentOutputValue |= ucBit;
\r
137 PORTB = ucCurrentOutputValue;
\r