freq_theta.h

f2407:电机控制

/*----------------------------------------------------------------------
file name: freq_theta.h

2002.10.7
-----------------------------------------------------------------------*/
/*-----------------------------------------------------------------------
function return structure definition
-----------------------------------------------------------------------*/
typedef struct
{	unsigned int ktheta;    //Q5, ktheta=2*pi/fc
	int theta;		//Q0, increment of theta in each step
}freq_theta_struct;
/*-----------------------------------------------------------------------
external function statement
-----------------------------------------------------------------------*/
extern void freq_theta(freq_theta_struct *p, unsigned int frequence_r);