f280xcap.h

DSP280X芯片的编程简单例子

/* ==================================================================================
File name:        F280XCAP.H                     
                    
Originator:	Digital Control Systems Group
			Texas Instruments
Description:  
Header file containing data type and object definitions and 
initializers. Also contains prototypes for the functions in F280XCAP.C.

Target: TMS320F280x family
              
=====================================================================================
History:
-------------------------------------------------------------------------------------
 04-15-2005	Version 3.20: Using DSP280x v. 1.10 or higher 
------------------------------------------------------------------------------------*/

#ifndef __F280X_CAP_H__
#define __F280X_CAP_H__

#include "f280xbmsk.h"

/*-----------------------------------------------------------------------------
    Initialization states for ECAP Control Registers 1 and 2 for ECAP1
------------------------------------------------------------------------------*/
#define ECCTL1_INIT_STATE   ( CAP1POL_RISING_EDGE +  \
                              CAPLDEN_ENABLE + \
                              CTRRST1_DIFFERENCE_TS + \
                              EVTFLTPS_X_1 + \
                              EMULATION_FREE  )

#define ECCTL2_INIT_STATE   ( CONTINUOUS_MODE + \
                              TSCNTSTP_FREE + \
                              SYNCI_DISABLE + \
                              SYNCO_DISABLE + \
                              CAPTURE_MODE )

/*-----------------------------------------------------------------------------
Define the structure of the Capture Driver Object 
------------------------------------------------------------------------------*/
typedef struct { int32 EventPeriod;    // Output: Timer value difference between two edges detected (Q0)
                 void (*init)();       // Pointer to the init function 
                 Uint16 (*read)();      // Pointer to the read function 
               } CAPTURE;

/*-----------------------------------------------------------------------------
Define a handle for the CAPTURE object
------------------------------------------------------------------------------*/
typedef CAPTURE *CAPTURE_handle;

/*------------------------------------------------------------------------------
Default Initializer for the F280X CAPTURE Object
------------------------------------------------------------------------------*/
#define F280XCAP1       {1,    \
                        (void (*)(Uint32))F280X_CAP_Init,  \
                        (Uint16 (*)(Uint32))F280X_CAP_Read  \
                         }

/*------------------------------------------------------------------------------
Target Independent Default Initializer CAPTURE Object
------------------------------------------------------------------------------*/
#define CAPTURE_DEFAULTS  F280XCAP1

/*------------------------------------------------------------------------------
Prototypes for the functions in F280XCAP.C
------------------------------------------------------------------------------*/
void F280X_CAP_Init(CAPTURE_handle);
Uint16 F280X_CAP_Read(CAPTURE_handle);                                             

#endif //  __F280X_CAP_H__