volt_freq_c.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 35 行

/*------------------------------------------------------------------------
File name: volt_freq_c.h


Description:
	This file include the function prototype statment and the type define
of the output structure variable. Some nessecary defult values of the output
variable are included in the file too.
-------------------------------------------------------------------------*/
/*------------------------------------------------------------------------
structure type variable definition:
--------------------------------------------------------------------------*/
typedef struct 
	{	int slope;		//Q12, slope between voltage and frequence in the VHz control
						//for rating voltage, vref=0x1000, and rating freuqence=0x7fff
						//slope=2^12*vref/frequence=2^12*0x1000/0x7fff=0x200
		int uout;       //Q15, return of function
	}vhz_volt;                                   
/*--------------------------------------------------------------------------
defult value of structure variable:
---------------------------------------------------------------------------*/
/*vhz_volt DEFULT_VALUE
	{	0x2000;
		0x0;
	};*/
/*---------------------------------------------------------------------------
function prototype statment
----------------------------------------------------------------------------*/
extern void volt_freq(vhz_volt *p, int freq);