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1 /*\r
2     FreeRTOS V7.5.1 - Copyright (C) 2013 Real Time Engineers Ltd.\r
3 \r
4     VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
5 \r
6     ***************************************************************************\r
7      *                                                                       *\r
8      *    FreeRTOS provides completely free yet professionally developed,    *\r
9      *    robust, strictly quality controlled, supported, and cross          *\r
10      *    platform software that has become a de facto standard.             *\r
11      *                                                                       *\r
12      *    Help yourself get started quickly and support the FreeRTOS         *\r
13      *    project by purchasing a FreeRTOS tutorial book, reference          *\r
14      *    manual, or both from: http://www.FreeRTOS.org/Documentation        *\r
15      *                                                                       *\r
16      *    Thank you!                                                         *\r
17      *                                                                       *\r
18     ***************************************************************************\r
19 \r
20     This file is part of the FreeRTOS distribution.\r
21 \r
22     FreeRTOS is free software; you can redistribute it and/or modify it under\r
23     the terms of the GNU General Public License (version 2) as published by the\r
24     Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
25 \r
26     >>! NOTE: The modification to the GPL is included to allow you to distribute\r
27     >>! a combined work that includes FreeRTOS without being obliged to provide\r
28     >>! the source code for proprietary components outside of the FreeRTOS\r
29     >>! kernel.\r
30 \r
31     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
32     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
33     FOR A PARTICULAR PURPOSE.  Full license text is available from the following\r
34     link: http://www.freertos.org/a00114.html\r
35 \r
36     1 tab == 4 spaces!\r
37 \r
38     ***************************************************************************\r
39      *                                                                       *\r
40      *    Having a problem?  Start by reading the FAQ "My application does   *\r
41      *    not run, what could be wrong?"                                     *\r
42      *                                                                       *\r
43      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
44      *                                                                       *\r
45     ***************************************************************************\r
46 \r
47     http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
48     license and Real Time Engineers Ltd. contact details.\r
49 \r
50     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
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52     compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
53 \r
54     http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
55     Integrity Systems to sell under the OpenRTOS brand.  Low cost OpenRTOS\r
56     licenses offer ticketed support, indemnification and middleware.\r
57 \r
58     http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
59     engineered and independently SIL3 certified version for use in safety and\r
60     mission critical applications that require provable dependability.\r
61 \r
62     1 tab == 4 spaces!\r
63 */\r
64 \r
65 /* Scheduler includes. */\r
66 #include "FreeRTOS.h"\r
67 \r
68 /* Demo app includes. */\r
69 #include "partest.h"\r
70 \r
71 #define ptOUTPUT        0\r
72 #define ptALL_OFF       0\r
73 \r
74 unsigned portBASE_TYPE uxOutput;\r
75 \r
76 /*-----------------------------------------------------------\r
77  * Simple parallel port IO routines.\r
78  *-----------------------------------------------------------*/\r
79 \r
80 void vParTestInitialise( void )\r
81 {\r
82         /* The explorer 16 board has LED's on port A.  All bits are set as output\r
83         so PORTA is read-modified-written directly.  Two pins have change \r
84         notification pullups that need disabling. */\r
85         CNPU2bits.CN22PUE = 0;\r
86         CNPU2bits.CN23PUE = 0;\r
87         TRISA = ptOUTPUT;\r
88         PORTA = ptALL_OFF;\r
89         uxOutput = ptALL_OFF;\r
90 }\r
91 /*-----------------------------------------------------------*/\r
92 \r
93 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
94 {\r
95 unsigned portBASE_TYPE uxLEDBit;\r
96 \r
97         /* Which port A bit is being modified? */\r
98         uxLEDBit = 1 << uxLED;\r
99 \r
100         if( xValue )\r
101         {\r
102                 /* Turn the LED on. */\r
103                 portENTER_CRITICAL();\r
104                 {\r
105                         uxOutput |= uxLEDBit;\r
106                         PORTA = uxOutput;\r
107                 }\r
108                 portEXIT_CRITICAL();\r
109         }\r
110         else\r
111         {\r
112                 /* Turn the LED off. */\r
113                 portENTER_CRITICAL();\r
114                 {\r
115                         uxOutput &= ~uxLEDBit;\r
116                         PORTA = uxOutput;\r
117                 }\r
118                 portEXIT_CRITICAL();\r
119         }\r
120 }\r
121 /*-----------------------------------------------------------*/\r
122 \r
123 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
124 {\r
125 unsigned portBASE_TYPE uxLEDBit;\r
126 \r
127         uxLEDBit = 1 << uxLED;\r
128         portENTER_CRITICAL();\r
129         {\r
130                 /* If the LED is already on - turn it off.  If the LED is already\r
131                 off, turn it on. */\r
132                 if( uxOutput & uxLEDBit )\r
133                 {\r
134                         uxOutput &= ~uxLEDBit;\r
135                         PORTA = uxOutput;\r
136                 }\r
137                 else\r
138                 {\r
139                         uxOutput |= uxLEDBit;\r
140                         PORTA = uxOutput;\r
141                 }\r
142         }\r
143         portEXIT_CRITICAL();\r
144 }\r
145 \r