Library to Capture the +ve and -ve Pulsewidth of a signal

Dependents:   PulseWidthCapture_Program

Revision:
0:7076676dd640
Child:
1:6bb38ae2e503
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PulseWidthCapture.h	Fri Dec 05 10:49:31 2014 +0000
@@ -0,0 +1,199 @@
+ /* mbed Library - PulseWidthCapture
+ * Copyright (c) 2014
+ * released under MIT license http://mbed.org/licence/mit
+ */
+ 
+/***********************************************************************//**
+ * @file        PulseWidthCapture.h
+ * @brief       Header file for the PulseWidthCapture library. 
+ * @version     0.0
+ * @date        03 Dec 2014
+ * @author      
+ **************************************************************************/
+/***************************************************************************
+ * Revision     Date        Comments
+ *----------    --------    -----------------------------------------------
+ *
+ *  0.0         03/12/14    Initial creation
+ ***************************************************************************/
+
+#ifndef CAPTURET0_H
+#define CAPTURET0_H
+
+/* Includes ------------------------------------------------------------------- */
+#include "mbed.h"
+
+/* Public Types --------------------------------------------------------------- */
+
+
+/* Public Functions ----------------------------------------------------------- */
+/** @defgroup Capture_Public_Functions Capture Public Functions
+*/
+class Capture {
+public:
+
+/** Create a Capture object and configure it
+ *
+ * @param none
+ */
+Capture(void);
+
+/** Start capturing data. Accumulate the specified number of samples. 
+ * @param numsamples    The number of samples to be accumulated
+ * @return        None
+ */
+void Start_1(void);
+
+void Start_2(void);
+
+void Wait(void);
+
+
+/** Read (accumlated) sample count. 
+ * 
+ * @return       (unsigned int) Accumulated capture value
+ */
+//unsigned int Read_1(void);
+void Read_1(void);
+
+//unsigned int Read_2(void);
+void Read_2(void);
+
+unsigned int Debug(void);
+
+/* Public Macros -------------------------------------------------------------- */
+
+private:
+static void _Captureisr1(void);
+static void _Captureisr2(void);
+static void _Captureisr3(void);
+void Captureisr1(void);  
+void Captureisr2(void);  
+void Captureisr3(void);  
+static Capture *instance;
+//double capturedata;
+unsigned int capturedata;
+unsigned int capturedata_2;
+unsigned int test_1, test_2; 
+float rise, fall;
+double rise_2, fall_2, i_1, j_1, m_1;
+unsigned int debug;    
+                                        
+/* Private Macros ------------------------------------------------------------- */
+/* --------------------- BIT DEFINITIONS -------------------------------------- */
+/* Timer Capture Register Definitions --------------------- */
+
+/*********************************************************************//**
+ * Macro defines for CT32B0->IR Interrupt tegister
+ **********************************************************************/
+#define CT32B0_IR_CR0INT                   ((uint32_t)(1<<4))
+#define CT32B0_IR_CR1INT                   ((uint32_t)(1<<6))        /**< Interrupt flag for capture channel 1 */
+
+#define CT16B0_IR_MR0INT                   ((uint32_t)(1<<0))
+
+
+/*********************************************************************//**
+ * Macro defines for CT32B1->IR Interrupt tegister
+ **********************************************************************/
+#define CT32B1_IR_CR0INT                   ((uint32_t)(1<<4))        /**< Interrupt flag for capture channel 1 */
+#define CT32B1_IR_CR1INT                   ((uint32_t)(1<<5))
+
+/*********************************************************************//**
+ * Macro defines for IOCON->PIO1_29 register bits LPC11U24
+ **********************************************************************/
+#define P1_29_PIN_PULL_UP                     2UL
+#define P1_29_PIN_REPEATER                    3UL
+#define P1_29_PIN_NORESISTOR                  0UL
+#define P1_29_PIN_PULL_DOWN                   1UL 
+
+/* FUNC bits */
+#define PORT_PIO1_29                          0UL
+#define SCKO                                  1UL
+#define CT32B0_CAP1                           2UL
+
+
+
+/* MODE bits */
+#define P1_29_CAP_PULLUP                 ((uint32_t)(PIN_PULL_UP<<3))          // Pull up on the CT32B0_CAP1 input pin
+
+/*********************************************************************//**
+ * Macro defines for IOCON->PIO0_12 register bits LPC11U24
+ **********************************************************************/
+#define P0_12_PIN_PULL_UP                     2UL
+#define P0_12_PIN_REPEATER                    3UL
+#define P0_12_PIN_NORESISTOR                  0UL
+#define P0_12_PIN_PULL_DOWN                   1UL 
+
+/* FUNC bits */
+#define PIO0_12                               1UL
+#define ADL                                   2UL
+#define CT32B1_CAP0                           3UL             //forPIO0_12
+#define ADMODE                           ((uint32_t)(1<<7)) 
+#define FILTR                            ((uint32_t)(1<<8))    
+
+/* MODE bits */
+#define P0_12_CAP_PULLUP                 ((uint32_t)(PIN_PULL_UP<<3))          // Pull up on the CT32B0_CAP1 input pin
+
+/*********************************************************************//**
+ * Macro defines for SYSCON->SYSAHBCLKDIV register  bits LPC11U24
+ **********************************************************************/
+#define CT32B0_CLK_ENABLE          ((uint32_t)(1<<9))        /**< CT32B0 clock enable */ 
+
+#define CT32B1_CLK_ENABLE          ((uint32_t)(1<<10))
+
+#define CT16B0_CLK_ENABLE          ((uint32_t)(1<<7))
+/*********************************************************************//**
+ * Macro defines for CT32B0->TCR register  bits LPC11U24
+ **********************************************************************/
+#define CT32B0_TCR_CEN                         1UL
+
+/*********************************************************************//**
+ * Macro defines for CT32B1->TCR register  bits LPC11U24
+ **********************************************************************/
+#define CT32B1_TCR_CEN                          1UL
+
+/*********************************************************************//**
+ * Macro defines for CT16B0->TCR register  bits LPC11U24
+ **********************************************************************/
+#define CT16B0_TCR_CEN                          1UL
+
+/*********************************************************************//**
+ * Macro defines for CT32B0->CCR register  bits LPC11U24
+ **********************************************************************/
+#define CCR_CAP1RE                     ((uint32_t)(1<<6)) 
+#define CCR_CAP1FE                     ((uint32_t)(1<<7))
+#define CCR_CAP1I                      ((uint32_t)(1<<8))  
+
+/*********************************************************************//**
+ * Macro defines for CT32B1->CCR register  bits LPC11U24
+ **********************************************************************/
+#define CCR_CAP0RE                     ((uint32_t)(1<<0)) 
+#define CCR_CAP0FE                     ((uint32_t)(1<<1))
+#define CCR_CAP0I                      ((uint32_t)(1<<2))  
+
+/*********************************************************************//**
+ * Macro defines for CT32B0->CTCR register  bits LPC11U24
+ **********************************************************************/
+#define CT32B0_CTCR_CTM_TIMER                  0UL
+#define CT32B0_CTCR_ENCC                       ((uint32_t)(1<<4))
+#define CT32B0_CTCR_SEICC_CAP1RE               ((uint32_t)(4<<5))
+#define CT32B0_CTCR_SEICC_CAP1FE               ((uint32_t)(5<<5))
+
+
+/*********************************************************************//**
+ * Macro defines for CT32B1->CTCR register  bits LPC11U24
+ **********************************************************************/
+#define CT32B1_CTCR_CTM_TIMER                  0UL
+#define CT32B1_CTCR_ENCC                       ((uint32_t)(1<<4))
+#define CT32B1_CTCR_SEICC_CAP0RE               ((uint32_t)(0<<5))          //CT32B1_CAP0
+#define CT32B1_CTCR_SEICC_CAP0FE               ((uint32_t)(1<<5))
+
+#define CT16B0_MR0I                            ((uint32_t)(1<<0))
+
+#define CT16B0_MR0R                            ((uint32_t)(1<<1))
+
+
+
+}; // End of Capture class information
+#endif /* CAPTURE_H */
+/* --------------------------------- End Of File ------------------------------ */