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LPC_Timer.h
资源名称：LPC2148_IAR_LPC2148.zip　[点击查看]
上传用户：sourcesun
上传日期：2013-09-23
资源大小：362k
文件大小：5k
源码类别：

DNA

开发平台：

Asm

LPC_Timer.h：源码内容
  1. /*************************************************************************
  2.  *
  3.  *    Used with ICCARM and AARM.
  4.  *
  5.  *    (c) Copyright IAR Systems 2003
  6.  *
  7.  *    File name   : LPC_Timer.h
  8.  *    Description :
  9.  *
  10.  *    History :
  11.  *    1. Date: July 08, 2004
  12.  *       Author: Wilson Liu
  13.  *       Description: Create the basic function
  14.  *
  15.  *    2. Date: August 12, 2004
  16.  *       Author: Shawn Zhang
  17.  *       Description: Re-write some API interface
  18.  *
  19.  *    3. Data        : Oct 10, 2004
  20.  *       Author      : Stanimir Bonev
  21.  *       Description : Modify some function and interface
  22.  *
  23.  *    $Revision: 1.1.4.1 $
  24.  **************************************************************************/
  25. #include <includes.h>
  27. #ifndef __LPC_TIMER_H
  28. #define __LPC_TIMER_H
  30. /* Timer Control register bit descriptions */
  31. #define TCR_ENABLE_BIT          0
  32. #define TCR_RESET_BIT           1
  34. // The channel name which is used in matching, in fact they represent
  35. // corresponding Match Register
  36. #define CH_MAXNUM               4
  37. #define CH0                     0
  38. #define CH1                     1
  39. #define CH2                     2
  40. #define CH3                     3
  42. // The channel name which is used in capturing, in fact they represent
  43. // corresponding Capture Register
  44. #define CPCH_MAXNUM             4
  45. #define CPCH0                   0
  46. #define CPCH1                   1
  47. #define CPCH2                   2
  48. #define CPCH3                   3
  50. //The actions when matching
  51. #define TimerAction_Interrupt   0x1
  52. #define TimerAction_ResetTimer  0x2
  53. #define TimerAction_StopTimer   0x4
  55. //Interrupt source type
  56. #define TIMERMR0Int             0x01
  57. #define TIMERMR1Int             0x02
  58. #define TIMERMR2Int             0x04
  59. #define TIMERMR3Int             0x08
  60. #define TIMERCR0Int             0x10
  61. #define TIMERCR1Int             0x20
  62. #define TIMERCR2Int             0x40
  63. #define TIMERCR3Int             0x80
  65. #define TIMERALLInt             0xFF
  67. // TIMER Chanel def
  68. typedef enum {
  69.   TIMER0 = 0,
  70.   TIMER1
  71. } LPC_TimerChanel_t;
  73. // External Match Control Action Type
  74. typedef enum {
  75.     DONOTHING = 0,
  76.     SETTOLOW,
  77.     SETTOHIGH,
  78.     TOGGLE
  79. } LPC_Timer_ExtAction_t;
  81. // Capture Control Action Type
  82. typedef enum {
  83.   TimerCPTrigger_Rising = 1,
  84.   TimerCPTrigger_Falling
  85. } LPC_Timer_CapureAction_t;
  87. typedef struct {
  88.   bool Enable;
  89.   unsigned char Action;
  90.   unsigned long TimeValue;
  91.   void (* Fnpr)(void *);
  92.   void * FnprArg;
  93. } LPC_Timer_MatchChannel_t;
  95. typedef struct {
  96.   bool Enable;
  97.   unsigned char TriggerType;
  98.   bool EnableInt;
  99.   void (* Fnpr)(void *);
  100.   void * FnprArg;
  102.   long CPValue;
  103. } LPC_Timer_CaptureChannel_t;
  105. typedef struct {
  106.   unsigned long Precision;
  107.   unsigned long Prescaler;
  108.   LPC_Timer_MatchChannel_t MatchCH[CH_MAXNUM];
  109.   LPC_Timer_CaptureChannel_t CaptureCH[CPCH_MAXNUM];
  111.   LPC_Timer_ExtAction_t ExtAction[CH_MAXNUM];
  112.   unsigned char ExtBitValue[CH_MAXNUM];       // low or high, only 1 bit
  113. } LPC_Timer_Config_t;
  116. /* Declare functions */
  117. int TIMER_Init(LPC_TimerChanel_t DevNum, unsigned long precision);
  118. int TIMER_Reset(LPC_TimerChanel_t DevNum);
  119. int TIMER_Start(LPC_TimerChanel_t DevNum);
  120. int TIMER_Stop(LPC_TimerChanel_t DevNum);
  122. int TIMER_SetMatchAction(LPC_TimerChanel_t DevNum,
  123.                           unsigned int CHNum,
  124.                           unsigned int action ,
  125.                           unsigned long TimeValue,
  126.                           void (* Fnpr)(void *),
  127.                           void * FnprArg,
  128.                           LPC_Timer_ExtAction_t ExtAction);
  130. int TIMER_GetTimerMatch(LPC_TimerChanel_t DevNum, unsigned int MRNum,
  131.             unsigned int * pAction , unsigned int * pMatchValue);
  133. int TIMER_GetTimerExternalMatch(LPC_TimerChanel_t DevNum, unsigned int MATNum,
  134.             unsigned int * pAction , unsigned int *pExternalMatchValue);
  136. int TIMER_SetCaptureAction (LPC_TimerChanel_t DevNum,
  137.                           unsigned char CPCHNum,
  138.                           unsigned char  TriggerType,
  139.                           bool EnableInt,
  140.                           void (* Fnpr)(void *),
  141.                           void * FnprArg );
  143. int TIMER_GetTimerCapture(LPC_TimerChanel_t DevNum, unsigned int CRNum,
  144.             unsigned int * pCaptureValue);
  146. unsigned long TIMER_CheckIntType(LPC_TimerChanel_t DevNum);
  147. unsigned long TIMER_ClearInt(LPC_TimerChanel_t DevNum, int IntType);
  149. unsigned long TIMER_GetREGValue_CR(LPC_TimerChanel_t DevNum, int CRNum);
  150. unsigned long TIMER_GetREGValue_TC(LPC_TimerChanel_t DevNum);
  151. unsigned long TIMER_GetPrescaler(LPC_TimerChanel_t DevNum);
  153. void TIMER0_ISR ();
  154. void TIMER1_ISR ();
  156. // Time defenition
  157. #define sec_T0  *(SYS_GetFpclk()/TIMER_GetPrescaler(TIMER0))
  158. #define msec_T0 *(SYS_GetFpclk()/(TIMER_GetPrescaler(TIMER0)*1000))
  159. #define usec_T0 *(SYS_GetFpclk()/(TIMER_GetPrescaler(TIMER0)*1000000))
  161. #define sec_T1  *(SYS_GetFpclk()/TIMER_GetPrescaler(TIMER1))
  162. #define msec_T1 *(SYS_GetFpclk()/(TIMER_GetPrescaler(TIMER1)*1000))
  163. #define usec_T1 *(SYS_GetFpclk()/(TIMER_GetPrescaler(TIMER1)*1000000))
  165. #endif //__LPC_Timer_H