trigono.h

非常实用的AD和pwm的ad公司21990dsp芯片的控制源代码

/****************************************************************************************
*                                                                                      *
* Library: Configuration and Macros for Trigonometric Functions                        *
*                                                                                      *
* File: trigono.h                                                                      *
*                                                                                      *
* Description: Trigono Include File                                                    *
* Purpose    : Declare Library Routines and Macros for Trigonometric Operations        *
*                                                                                      *
* Author     : KU                                                                      *
* Version    : 1.0                                                                     *
* Date       : January 2000                                                            *
* Modification History:    KU                                                          *
*                                                                                      *
* Embedded Control Systems                                                             *
* Analog Devices Inc.                                                                  *
****************************************************************************************/

/****************************************************************************************
*                                                                                      *
* Constant that need to be defined in main.h:                                          *
*                                                                                      *
* None                                                                                 *
****************************************************************************************/

/****************************************************************************************
*                                                                                      *
* Other Libraries Required by this Module:                                             *
*                                                                                      *
* None                                                                                 *
****************************************************************************************/

#ifndef TRIG_INCLUDED
#define TRIG_INCLUDED

/****************************************************************************************
* Routines Defined in this Module                                                      *
****************************************************************************************/

.EXTERN Sin_;
.EXTERN Cos_;

/****************************************************************************************
* Global Variables Defined in this Module                                              *
****************************************************************************************/

/* None */

/****************************************************************************************
*                                                                                      *
* Type: Macro                                                                          *
*                                                                                      *
* Call: Set_DAG_registers_for_trigonometric();                                         *
*                                                                                      *
* Initialise the DAG registers for use with the trigonometric functions                *
*                                                                                      *
* Inputs  :   	None                                                                   *
*                                                                                      *
* Ouputs  :	None                                                                   *
*                                                                                      *
* Modified:	M5, L5	                                                               *
*                                                                                      *
****************************************************************************************/

	#define Set_DAG_registers_for_trigonometric \
		M5 = 1; \
		L5 = 0


/****************************************************************************************
*                                                                                      *
* Type: Macro                                                                          *
*                                                                                      *
* Call: Sin(angle);                                                                    *
*                                                                                      *
* This Function performs the Sine Calculation				               *
*                                                                                      *
* Input:   %0 : Angle in 1.15 format (dreg or constant)                                *
*                                                                                      *
* Output:  AR : Sine of angle                                                          *
*                                                                                      *
* Modified:    AX0, AX1, AY0, AY1, AR, AF, MY0, MX1, MY1, MR, SR, I6, M6, L6                              *
*                                                                                      *
****************************************************************************************/

	#define Sin(theta) \
		ax0 = theta; \
		call Sin_
	

/****************************************************************************************
*                                                                                      *
* Type: Macro                                                                          *
*                                                                                      *
* Call: Cos(angle);                                                                    *
*                                                                                      *
* This Function performs the Cose calculation				               *
*                                                                                      *
* Input:   %0 : Angle in 1.15 format (dreg or constant)                                *
*                                                                                      *
* Output:  AR : Cosine of angle                                                        *
*                                                                                      *
* Modified:   AX0, AX1, AY0, AY1, AR, AF, MY0, MX1, MY1, MR, SR, I6                             *
*                                                                                      *
****************************************************************************************/

	#define Cos(theta) \
		ax0 = theta; \
		call Cos_
	



 #endif