arm pwm.txt

本程序为ARMLPC2292 SPWM调制程序

#include  "config.h"
uint32	fz=5000;         //载波频率
uint32	fx=50;          //调制波频率
uint32	N;	        	//载波比
uint32  M=0.9;			    //调制度
uint32  D=10000;
uint32 T3;
uint32 pwm_i;
uint32 pwm_angle;
uint32 pwm_temp;
uint32 pwm_temp1;//PWM变量:pwm _i是第i个载波;pwm_angel为三角载波规则的底点角度
                                   //pwm_temp为比较寄存器4的值