spwm.c

交流电机调速程序

#include 	"math.h"
#include    "f2407_c.h" 
#define PI 		3.1415926
extern void ini(void);
extern interrupt void timer2_isr(void);
extern interrupt void inter2_isr(void);                                           
void delay5s(void);
float sin_table[33]={0,0.189,0.371,0.541,0.690,0.815,0.909,0.972,0.98,
					   0.972,0.909,0.815,0.690,0.541,0.371,0.189,0,
					   -0.189,-0.371,-0.541,-0.690,-0.815,-0.909,-0.972,-0.98,
					   -0.972,-0.909,-0.815,-0.690,-0.541,-0.371,-0.189,0};

extern float b_time;
extern void adc_soc(void);
extern void init_adc(void);
/*extern void qep_init(void);*/
/****************************** MAIN ROUTINE ***************************/
void main(void)
{
   unsigned int i,j;
   ini();
   init_adc();
/*  qep_init();*/
   asm(" CLRC INTM");
   
   /*  start process*/
   for(i=0;i<10;i++)
   delay5s();
   delay5s();
   delay5s();
   delay5s();
   delay5s();
   /*  begin speed control*/
   *IMR |= 0x0001;
   adc_soc();
   for(;;)delay5s();;
}

void delay5s(void)
{
	unsigned long i;
	for(i=0;i<500000;i++);
}