]> git.sur5r.net Git - freertos/blob - FreeRTOS/Demo/dsPIC_MPLAB/ParTest/ParTest.c
Demo code only:
[freertos] / FreeRTOS / Demo / dsPIC_MPLAB / ParTest / ParTest.c
1 /*\r
2     FreeRTOS V8.1.1 - Copyright (C) 2014 Real Time Engineers Ltd. \r
3     All rights reserved\r
4 \r
5     VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
6 \r
7     ***************************************************************************\r
8      *                                                                       *\r
9      *    FreeRTOS provides completely free yet professionally developed,    *\r
10      *    robust, strictly quality controlled, supported, and cross          *\r
11      *    platform software that has become a de facto standard.             *\r
12      *                                                                       *\r
13      *    Help yourself get started quickly and support the FreeRTOS         *\r
14      *    project by purchasing a FreeRTOS tutorial book, reference          *\r
15      *    manual, or both from: http://www.FreeRTOS.org/Documentation        *\r
16      *                                                                       *\r
17      *    Thank you!                                                         *\r
18      *                                                                       *\r
19     ***************************************************************************\r
20 \r
21     This file is part of the FreeRTOS distribution.\r
22 \r
23     FreeRTOS is free software; you can redistribute it and/or modify it under\r
24     the terms of the GNU General Public License (version 2) as published by the\r
25     Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
26 \r
27     >>!   NOTE: The modification to the GPL is included to allow you to     !<<\r
28     >>!   distribute a combined work that includes FreeRTOS without being   !<<\r
29     >>!   obliged to provide the source code for proprietary components     !<<\r
30     >>!   outside of the FreeRTOS kernel.                                   !<<\r
31 \r
32     FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
33     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
34     FOR A PARTICULAR PURPOSE.  Full license text is available from the following\r
35     link: http://www.freertos.org/a00114.html\r
36 \r
37     1 tab == 4 spaces!\r
38 \r
39     ***************************************************************************\r
40      *                                                                       *\r
41      *    Having a problem?  Start by reading the FAQ "My application does   *\r
42      *    not run, what could be wrong?"                                     *\r
43      *                                                                       *\r
44      *    http://www.FreeRTOS.org/FAQHelp.html                               *\r
45      *                                                                       *\r
46     ***************************************************************************\r
47 \r
48     http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
49     license and Real Time Engineers Ltd. contact details.\r
50 \r
51     http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
52     including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
53     compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
54 \r
55     http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
56     Integrity Systems to sell under the OpenRTOS brand.  Low cost OpenRTOS\r
57     licenses offer ticketed support, indemnification and middleware.\r
58 \r
59     http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
60     engineered and independently SIL3 certified version for use in safety and\r
61     mission critical applications that require provable dependability.\r
62 \r
63     1 tab == 4 spaces!\r
64 */\r
65 \r
66 /* Scheduler includes. */\r
67 #include "FreeRTOS.h"\r
68 \r
69 /* Demo app includes. */\r
70 #include "partest.h"\r
71 \r
72 #define ptOUTPUT        0\r
73 #define ptALL_OFF       0\r
74 \r
75 unsigned portBASE_TYPE uxOutput;\r
76 \r
77 /*-----------------------------------------------------------\r
78  * Simple parallel port IO routines.\r
79  *-----------------------------------------------------------*/\r
80 \r
81 void vParTestInitialise( void )\r
82 {\r
83         /* The explorer 16 board has LED's on port A.  All bits are set as output\r
84         so PORTA is read-modified-written directly.  Two pins have change \r
85         notification pullups that need disabling. */\r
86         CNPU2bits.CN22PUE = 0;\r
87         CNPU2bits.CN23PUE = 0;\r
88         TRISA = ptOUTPUT;\r
89         PORTA = ptALL_OFF;\r
90         uxOutput = ptALL_OFF;\r
91 }\r
92 /*-----------------------------------------------------------*/\r
93 \r
94 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )\r
95 {\r
96 unsigned portBASE_TYPE uxLEDBit;\r
97 \r
98         /* Which port A bit is being modified? */\r
99         uxLEDBit = 1 << uxLED;\r
100 \r
101         if( xValue )\r
102         {\r
103                 /* Turn the LED on. */\r
104                 portENTER_CRITICAL();\r
105                 {\r
106                         uxOutput |= uxLEDBit;\r
107                         PORTA = uxOutput;\r
108                 }\r
109                 portEXIT_CRITICAL();\r
110         }\r
111         else\r
112         {\r
113                 /* Turn the LED off. */\r
114                 portENTER_CRITICAL();\r
115                 {\r
116                         uxOutput &= ~uxLEDBit;\r
117                         PORTA = uxOutput;\r
118                 }\r
119                 portEXIT_CRITICAL();\r
120         }\r
121 }\r
122 /*-----------------------------------------------------------*/\r
123 \r
124 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )\r
125 {\r
126 unsigned portBASE_TYPE uxLEDBit;\r
127 \r
128         uxLEDBit = 1 << uxLED;\r
129         portENTER_CRITICAL();\r
130         {\r
131                 /* If the LED is already on - turn it off.  If the LED is already\r
132                 off, turn it on. */\r
133                 if( uxOutput & uxLEDBit )\r
134                 {\r
135                         uxOutput &= ~uxLEDBit;\r
136                         PORTA = uxOutput;\r
137                 }\r
138                 else\r
139                 {\r
140                         uxOutput |= uxLEDBit;\r
141                         PORTA = uxOutput;\r
142                 }\r
143         }\r
144         portEXIT_CRITICAL();\r
145 }\r
146 \r