About Ouput Compare Insert dead time .

Now , I generate below waveform. Every thing is OK except for red arrow , it indicate a deadtime.but it's longer than other deadtime , in fact , This dead time is twice as large as the other dead time .

​

divide into three stage :

1�?First Stage , TIM register content

CCMR1.OC2M = 1 ;

CCMR1.OC1M = 1;

​

CCER.CC1NE = 1;

CCER.CC2NE = 1;

​

CCER.CC1NP = 1;

CCER.CC2NP = 1;

​

BDTR.OSSR = 1;

BDTR.MOE = 1;

​

2�?Second Stage

CCMR1.OC1M = 2;

​

CCER.CC1E = 1;

CCER.CC1NE = 1;

CCER.CC1NP = 1;

​

BDTR.OSSR = 1;

BDTR.MOE = 1;

​

3�?Third Stage

CCMR1.OC2M = 2;

​

CCER.CC2E = 1;

CCER.CC2NE = 1;

CCER.CC2NP = 1;

​

BDTR.OSSR = 1;

BDTR.MOE = 1;

​

when every stage completed , clear all resgister,​ then ,re-config TIM , re-start .

​

​

so. I don't know why the second stage dead time have problem .​