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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
60 /*****************************************************************************
61 * Private types/enumerations/variables
62 ****************************************************************************/
63
64 /*****************************************************************************
65 * Public types/enumerations/variables
66 ****************************************************************************/
67
68 /*****************************************************************************
69 * Private functions
70 ****************************************************************************/
71
72 /* Sets up system hardware */
73 static void prvSetupHardware(void)
74 {
75 Board_Init();
76 }
77
78 /* LED0 toggle thread */
79 static portTASK_FUNCTION(vLEDTask0, pvParameters) {
80 bool LedState = false;
81 while (1) {
82 Board_LED_Set(0, LedState);
83 LedState = (bool) !LedState;
84
85 vTaskDelay(configTICK_RATE_HZ/2);
86 }
87 }
88
89 /* LED1 toggle thread */
90 static portTASK_FUNCTION(vLEDTask1, pvParameters) {
91 bool LedState = false;
92 while (1) {
93 Board_LED_Set(1, LedState);
94 LedState = (bool) !LedState;
95
96 vTaskDelay(configTICK_RATE_HZ*2);
97 }
98 }
99
100 /* LED2 toggle thread */
101 static portTASK_FUNCTION(vLEDTask2, pvParameters) {
102 bool LedState = false;
103 while (1) {
104 Board_LED_Set(2, LedState);
105 LedState = (bool) !LedState;
106
107 vTaskDelay(configTICK_RATE_HZ);
108 }
109 }
110
111 /*****************************************************************************
112 * Public functions
113 ****************************************************************************/
114
119 int main(void)
120 {
121 prvSetupHardware();
122
123 /* LED1 toggle thread */
124 xTaskCreate(vLEDTask1, (signed char *) "vTaskLed1",
125 configMINIMAL_STACK_SIZE, NULL, (tskIDLE_PRIORITY + 1UL),
126 (xTaskHandle *) NULL);
127
128 /* LED2 toggle thread */
129 xTaskCreate(vLEDTask2, (signed char *) "vTaskLed2",
130 configMINIMAL_STACK_SIZE, NULL, (tskIDLE_PRIORITY + 1UL),
131 (xTaskHandle *) NULL);
132
133 /* LED0 toggle thread */
134 xTaskCreate(vLEDTask0, (signed char *) "vTaskLed0",
135 configMINIMAL_STACK_SIZE, NULL, (tskIDLE_PRIORITY + 1UL),
136 (xTaskHandle *) NULL);
137
138 /* Start the scheduler */
139 vTaskStartScheduler();
140
141 /* Should never arrive here */
142 return 1;
143 }
144