LPCOpen Platform  v1.03
LPCOpen Platform for NXP LPC Microcontrollers
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timer_11xx.c
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1 /*
2  * @brief 11xx 16/32-bit Timer/PWM control functions
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 "chip.h"
33 
34 /*****************************************************************************
35  * Private types/enumerations/variables
36  ****************************************************************************/
37 
38 /*****************************************************************************
39  * Public types/enumerations/variables
40  ****************************************************************************/
41 
42 /*****************************************************************************
43  * Private functions
44  ****************************************************************************/
45 
46 /* Returns the clock from the speicifc timer base address */
47 static CHIP_SYSCTL_CLOCK_T Chip_Timer_GetClock(LPC_TIMER_T *pTMR)
48 {
49  CHIP_SYSCTL_CLOCK_T clk;
50 
51  if (pTMR == LPC_TIMER32_0) {
52  clk = SYSCTL_CLOCK_CT32B0;
53  }
54  else if (pTMR == LPC_TIMER32_0) {
55  clk = SYSCTL_CLOCK_CT32B0;
56  }
57  else if (pTMR == LPC_TIMER16_0) {
58  clk = SYSCTL_CLOCK_CT16B0;
59  }
60  else {
61  clk = SYSCTL_CLOCK_CT16B1;
62  }
63 
64  return clk;
65 }
66 
67 /*****************************************************************************
68  * Public functions
69  ****************************************************************************/
70 
71 /* Initialize a timer */
72 void Chip_TIMER_Init(LPC_TIMER_T *pTMR)
73 {
74  /* Enable timer clock */
75  Chip_Clock_EnablePeriphClock(Chip_Timer_GetClock(pTMR));
76 }
77 
78 /* Shutdown a timer */
79 void Chip_TIMER_DeInit(LPC_TIMER_T *pTMR)
80 {
81  /* Disable timer clock */
82  Chip_Clock_DisablePeriphClock(Chip_Timer_GetClock(pTMR));
83 }