capturet0_11u24.h

00001  /* mbed Library - CaptureT0_11U24
00002  * Copyright (c) 2014
00003  * released under MIT license http://mbed.org/licence/mit
00004  */
00005  
00006 /***********************************************************************//**
00007  * @file        capturet1_11u24.h
00008  * @brief       Header file for the CaptureT0_11U24 library. 
00009  * @version     0.0
00010  * @date        5 Feb 2014
00011  * @author      
00012  **************************************************************************/
00013 /***************************************************************************
00014  * Revision     Date        Comments
00015  *----------    --------    -----------------------------------------------
00016  *
00017  *  0.0         2/5/14    Initial creation
00018  ***************************************************************************/
00019 
00020 #ifndef CAPTURET0_H
00021 #define CAPTURET0_H
00022 
00023 /* Includes ------------------------------------------------------------------- */
00024 #include "mbed.h"
00025 
00026 
00027 /* Public Types --------------------------------------------------------------- */
00028 
00029 
00030 /* Public Functions ----------------------------------------------------------- */
00031 /** @defgroup Capture_Public_Functions Capture Public Functions
00032 */
00033 class Capture {
00034 public:
00035 
00036 /** Create a Capture object and configure it
00037  *
00038  * @param none
00039  */
00040 Capture(void);
00041 
00042 /** Start capturing data. Accumulate the specified number of samples. 
00043  * @param numsamples    The number of samples to be accumulated
00044  * @return        None
00045  */
00046 void Start(int numsamples);
00047 
00048 /** Check to see if a new count is ready. 
00049  * 
00050  * @return       (int) Status value. Negative means overrun.
00051  */
00052 int Ready(void);
00053 
00054 /** Read (accumlated) sample count. 
00055  * 
00056  * @return       (unsigned int) Accumulated capture value
00057  */
00058 unsigned int Read(void);
00059 
00060 
00061 
00062 /* Public Macros -------------------------------------------------------------- */
00063 
00064 
00065 
00066 
00067 private:
00068 static void _Captureisr(void);
00069 void Captureisr(void);  
00070 static Capture *instance;
00071 int flag;
00072 int channel;
00073 //int capturecount;
00074 unsigned int capturedata;
00075 int Nsamples;
00076 //int Nsamplebits;
00077 //int *flagaddresspointer;
00078 
00079 
00080 
00081 /* Private Macros ------------------------------------------------------------- */
00082 /* --------------------- BIT DEFINITIONS -------------------------------------- */
00083 /* Timer Capture Register Definitions --------------------- */
00084 
00085 /*********************************************************************//**
00086  * Macro defines for CT32B0->IR Interrupt tegister
00087  **********************************************************************/
00088 #define IR_CR1INT                   ((uint32_t)(1<<6))        /**< Interrupt flag for capture channel 1 */
00089 
00090 /*********************************************************************//**
00091  * Macro defines for IOCON->PIO1_29 register bits LPC11U24
00092  **********************************************************************/
00093 #define PIN_PULL_UP                     2UL
00094 #define PIN_REPEATER                    3UL
00095 #define PIN_NORESISTOR                  0UL
00096 #define PIN_PULL_DOWN                   1UL 
00097 
00098 /* FUNC bits */
00099 #define CT32B0_CAP1                     2UL
00100 
00101 /* MODE bits */
00102 #define CAP_PULLUP                 ((uint32_t)(PIN_PULL_UP<<3))          // Pull up on the CT32B0_CAP1 input pin
00103 
00104 /*********************************************************************//**
00105  * Macro defines for SYSCON->SYSAHBCLKDIV register  bits LPC11U24
00106  **********************************************************************/
00107 #define CT32B0_CLK_ENABLE          ((uint32_t)(1<<9))        /**< CT32B0 clock enable */ 
00108 
00109 /*********************************************************************//**
00110  * Macro defines for CT32B0->TCR register  bits LPC11U24
00111  **********************************************************************/
00112 #define TCR_CEN                         1UL
00113 
00114 
00115 /*********************************************************************//**
00116  * Macro defines for CT32B0->CCR register  bits LPC11U24
00117  **********************************************************************/
00118 #define CCR_CAP1RE                     ((uint32_t)(1<<6)) 
00119 #define CCR_CAP1FE                     ((uint32_t)(1<<7))
00120 #define CCR_CAP1I                      ((uint32_t)(1<<8))  
00121 
00122 /*********************************************************************//**
00123  * Macro defines for CT32B0->CTCR register  bits LPC11U24
00124  **********************************************************************/
00125 #define CTCR_CTM_TIMER                  0UL
00126 #define CTCR_ENCC                       ((uint32_t)(1<<4))
00127 #define CTCR_SEICC_CAP1RE               ((uint32_t)(4<<5))
00128 
00129 
00130 
00131 }; // End of Capture class information
00132 #endif /* CAPTURE_H */
00133 /* --------------------------------- End Of File ------------------------------ */