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ritimer.c
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1 /*
2 * @brief RITimer 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
57 /*****************************************************************************
58 * Private types/enumerations/variables
59 ****************************************************************************/
60
61 /*****************************************************************************
62 * Public types/enumerations/variables
63 ****************************************************************************/
64
65 /*****************************************************************************
66 * Private functions
67 ****************************************************************************/
68
69 #define TIME_INTERVAL (1000)
70
71 /*****************************************************************************
72 * Public functions
73 ****************************************************************************/
74
79 void RIT_IRQHandler(void)
80 {
81 /* Clearn interrupt */
82 Chip_RIT_ClearInt(LPC_RITIMER);
83
84 /* Toggle LED */
85 Board_LED_Toggle(0);
86 }
87
92 int main(void)
93 {
94 Board_Init();
95
96 Board_LED_Set(0, true);
97
98 /* Initialize RITimer */
99 Chip_RIT_Init(LPC_RITIMER);
100
101 /* Configure RIT for a 1s interrupt tick rate */
102 Chip_RIT_SetTimerInterval(LPC_RITIMER, TIME_INTERVAL);
103
104 NVIC_EnableIRQ(RIT_IRQn);
105
106 /* LEDs toggle in interrupt handlers */
107 while (1) {
108 __WFI();
109 }
110 }
111