zdspwm.c

来自「DSP240 用的程序 电机及基本的 希望有用的朋友」· C语言 代码 · 共 20 行

/* Using scomp logic generate symmetric PWM */
#include "C240.h"
main()
{
 OCRA=0xffff; 
 SACTR=0x0026;
 SCMPR1=0x0003; /* Duty is 30% */
 SCMPR2=0x0005; /* Duty is 50% */
 SCMPR3=0x0007; /* Duty is 70% */
 COMCON=0x4957; 
 COMCON=0xc957;
 T1PR=0x000a; /* The period of PWM is CLK*10 */  
 T1CNT=0x0000; 
 T1CON=0xa80e; 
 for(;;)
 {
 T1CON=0xa84e;  /* CLK of PWM from T1 */
 }
}