freq_theta.h

来自「《DSP原理及电机控制应用-基于240x系列》2008新购的DSP原理及电机控制」· C头文件 代码 · 共 18 行

/*----------------------------------------------------------------------
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);