filter.c

在ccs编程环境下

#include "IQmathLib.h"         /* Include header for IQmath library */
/* Don't forget to set a proper GLOBAL_Q in "IQmathLib.h" file */
#include "filter.h"

void lpf_calc(LPF *v)
{	// y += tc*wc*(x-y_1)
	v->y += _IQmpy(v->Tc,_IQmpy(v->wc,(v->x - v->y_old)));
	v->y_old = v->y;
}