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sct_user.h
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1 /*
2 * @brief Interface to auto generated State Configurable Timer Blinky
3 * example code
4 *
5 * @note
6 * Copyright(C) NXP Semiconductors, 2012
7 * All rights reserved.
8 *
9 * @par
10 * Software that is described herein is for illustrative purposes only
11 * which provides customers with programming information regarding the
12 * LPC products. This software is supplied "AS IS" without any warranties of
13 * any kind, and NXP Semiconductors and its licensor disclaim any and
14 * all warranties, express or implied, including all implied warranties of
15 * merchantability, fitness for a particular purpose and non-infringement of
16 * intellectual property rights. NXP Semiconductors assumes no responsibility
17 * or liability for the use of the software, conveys no license or rights under any
18 * patent, copyright, mask work right, or any other intellectual property rights in
19 * or to any products. NXP Semiconductors reserves the right to make changes
20 * in the software without notification. NXP Semiconductors also makes no
21 * representation or warranty that such application will be suitable for the
22 * specified use without further testing or modification.
23 *
24 * @par
25 * Permission to use, copy, modify, and distribute this software and its
26 * documentation is hereby granted, under NXP Semiconductors' and its
27 * licensor's relevant copyrights in the software, without fee, provided that it
28 * is used in conjunction with NXP Semiconductors microcontrollers. This
29 * copyright, permission, and disclaimer notice must appear in all copies of
30 * this code.
31 */
32
33 #ifndef __SCT_USER_H__
34 #define __SCT_USER_H__
35
36 #include "chip.h"
37
38
39 // This is the timer setting for the match register of the L timer
40 // The other relevant factors for the final blinky speed is the processor clock
41 // and the prescaler value and the number of LED's in the
42 // For LPC43xx based boards, f(blinky) = 204MHz / (prescaler * speed * nb_of_LEDs) = 204MHz/(256*65535*4) = 3.0Hz
43 // For LPC18xx based boards, f(blinky) = 180MHz / (prescaler * speed * nb_of_LEDs) = 180MHz/(256*65535*4) = 2.7Hz
44
45 #define speed (65535) // max value for the 16-bit L counter
46
47
48 #endif