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freertos_blinky.c
Go to the documentation of this file.
1 /*
2 * @brief FreeRTOS Blinky example
3 *
4 * @note
5 * Copyright(C) NXP Semiconductors, 2012
6 * All rights reserved.
7 *
8 * @par
9 * Software that is described herein is for illustrative purposes only
10 * which provides customers with programming information regarding the
11 * LPC products. This software is supplied "AS IS" without any warranties of
12 * any kind, and NXP Semiconductors and its licensor disclaim any and
13 * all warranties, express or implied, including all implied warranties of
14 * merchantability, fitness for a particular purpose and non-infringement of
15 * intellectual property rights. NXP Semiconductors assumes no responsibility
16 * or liability for the use of the software, conveys no license or rights under any
17 * patent, copyright, mask work right, or any other intellectual property rights in
18 * or to any products. NXP Semiconductors reserves the right to make changes
19 * in the software without notification. NXP Semiconductors also makes no
20 * representation or warranty that such application will be suitable for the
21 * specified use without further testing or modification.
22 *
23 * @par
24 * Permission to use, copy, modify, and distribute this software and its
25 * documentation is hereby granted, under NXP Semiconductors' and its
26 * licensor's relevant copyrights in the software, without fee, provided that it
27 * is used in conjunction with NXP Semiconductors microcontrollers. This
28 * copyright, permission, and disclaimer notice must appear in all copies of
29 * this code.
30 */
31
32 #include "board.h"
33 #include "FreeRTOS.h"
34 #include "task.h"
35
59 /*****************************************************************************
60 * Private types/enumerations/variables
61 ****************************************************************************/
62
63 /*****************************************************************************
64 * Public types/enumerations/variables
65 ****************************************************************************/
66
67 /*****************************************************************************
68 * Private functions
69 ****************************************************************************/
70
71 /* Sets up system hardware */
72 static void prvSetupHardware(void)
73 {
74 Board_Init();
75 }
76
77 /* LED0 toggle thread */
78 static portTASK_FUNCTION(vLEDTask0, pvParameters) {
79 bool LedState = false;
80 while (1) {
81 Board_LED_Set(0, LedState);
82 LedState = (bool) !LedState;
83
84 vTaskDelay(configTICK_RATE_HZ / 2);
85 }
86 }
87
88 /* LED1 toggle thread */
89 static portTASK_FUNCTION(vLEDTask1, pvParameters) {
90 bool LedState = false;
91 while (1) {
92 Board_LED_Set(1, LedState);
93 LedState = (bool) !LedState;
94
95 vTaskDelay(configTICK_RATE_HZ * 2);
96 }
97 }
98
99 /* LED2 toggle thread */
100 static portTASK_FUNCTION(vLEDTask2, pvParameters) {
101 bool LedState = false;
102 while (1) {
103 Board_LED_Set(2, LedState);
104 LedState = (bool) !LedState;
105
106 vTaskDelay(configTICK_RATE_HZ);
107 }
108 }
109
110 /*****************************************************************************
111 * Public functions
112 ****************************************************************************/
113
118 int main(void)
119 {
120 prvSetupHardware();
121
122 /* LED1 toggle thread */
123 xTaskCreate(vLEDTask1, (signed char *) "vTaskLed1",
124 configMINIMAL_STACK_SIZE, NULL, (tskIDLE_PRIORITY + 1UL),
125 (xTaskHandle *) NULL);
126
127 /* LED2 toggle thread */
128 xTaskCreate(vLEDTask2, (signed char *) "vTaskLed2",
129 configMINIMAL_STACK_SIZE, NULL, (tskIDLE_PRIORITY + 1UL),
130 (xTaskHandle *) NULL);
131
132 /* LED0 toggle thread */
133 xTaskCreate(vLEDTask0, (signed char *) "vTaskLed0",
134 configMINIMAL_STACK_SIZE, NULL, (tskIDLE_PRIORITY + 1UL),
135 (xTaskHandle *) NULL);
136
137 /* Start the scheduler */
138 vTaskStartScheduler();
139
140 /* Should never arrive here */
141 return 1;
142 }
143