f28xpwm.h

许继的2812开发全套驱动程序，很全很实用的.rar

/* ==================================================================================
File name:        F28XPWM.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 F28XPWM.C.
=====================================================================================
 History:
-------------------------------------------------------------------------------------
 05-15-2002	Release	Rev 1.0                                                  
---------------------------------------------------------------------------------- */


/*-----------------------------------------------------------------------------
Define the structure of the PWM Driver Object 
-----------------------------------------------------------------------------*/
typedef struct {   
        int n_period;          /* Input: PWM Half-Period in CPU clock cycles (Q0)  */
        int Mfunc_p;           /* Input: Period scaler (Q15)                */
        int Mfunc_c1;          /* Input: PWM 1&2 Duty cycle ratio (Q15)       */
        int Mfunc_c2;          /* Input: PWM 3&4 Duty cycle ratio (Q15)       */
        int Mfunc_c3;          /* Input: PWM 5&6 Duty cycle ratio (Q15)       */        
        void (*update)();      /* Pointer to the update function             */
        } PWMGEN ;    

/*-----------------------------------------------------------------------------
Define a PWMGEN_handle
-----------------------------------------------------------------------------*/
typedef PWMGEN *PWMGEN_handle;
/*------------------------------------------------------------------------------
Default Initializers for the F28X PWMGEN Object 
------------------------------------------------------------------------------*/
#define PWMGEN_DEFAULTS { 3750,   \
                          0x7FFF, \
                          0x4000, \
                          0x4000, \
                          0x4000, \
                          (void (*)(long))F28X_EV1_PWM_Update }
                             
/*------------------------------------------------------------------------------
 Prototypes for the functions in F28XPWM.C
------------------------------------------------------------------------------*/

void F28X_EV1_PWM_Update(PWMGEN_handle);