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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
57 /*****************************************************************************
58 * Private types/enumerations/variables
59 ****************************************************************************/
60
61 /*****************************************************************************
62 * Public types/enumerations/variables
63 ****************************************************************************/
64
65 /*****************************************************************************
66 * Private functions
67 ****************************************************************************/
68
69 /* Sets up system hardware */
70 static void prvSetupHardware(void)
71 {
72 Board_Init();
73 }
74
75 /* LED0 toggle thread */
76 static portTASK_FUNCTION(vLEDTask0, pvParameters) {
77 bool LedState = false;
78 while (1) {
79 Board_LED_Set(0, LedState);
80 LedState = (bool) !LedState;
81
82 vTaskDelay(configTICK_RATE_HZ/2);
83 }
84 }
85
86 /* LED1 toggle thread */
87 static portTASK_FUNCTION(vLEDTask1, pvParameters) {
88 bool LedState = false;
89 while (1) {
90 Board_LED_Set(1, LedState);
91 LedState = (bool) !LedState;
92
93 vTaskDelay(configTICK_RATE_HZ*2);
94 }
95 }
96
97 /* LED2 toggle thread */
98 static portTASK_FUNCTION(vLEDTask2, pvParameters) {
99 bool LedState = false;
100 while (1) {
101 Board_LED_Set(2, LedState);
102 LedState = (bool) !LedState;
103
104 vTaskDelay(configTICK_RATE_HZ);
105 }
106 }
107
108 /*****************************************************************************
109 * Public functions
110 ****************************************************************************/
111
116 int main(void)
117 {
118 prvSetupHardware();
119
120 /* LED1 toggle thread */
121 xTaskCreate(vLEDTask1, (signed char *) "vTaskLed1",
122 configMINIMAL_STACK_SIZE, NULL, (tskIDLE_PRIORITY + 1UL),
123 (xTaskHandle *) NULL);
124
125 /* LED2 toggle thread */
126 xTaskCreate(vLEDTask2, (signed char *) "vTaskLed2",
127 configMINIMAL_STACK_SIZE, NULL, (tskIDLE_PRIORITY + 1UL),
128 (xTaskHandle *) NULL);
129
130 /* LED0 toggle thread */
131 xTaskCreate(vLEDTask0, (signed char *) "vTaskLed0",
132 configMINIMAL_STACK_SIZE, NULL, (tskIDLE_PRIORITY + 1UL),
133 (xTaskHandle *) NULL);
134
135 /* Start the scheduler */
136 vTaskStartScheduler();
137
138 /* Should never arrive here */
139 return 1;
140 }
141