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6678 bios 问题



各位专家:

请问

Ecm.eventGroupHwiNum[0] = 7;
Ecm.eventGroupHwiNum[1] = 8;
Ecm.eventGroupHwiNum[2] = 9;
Ecm.eventGroupHwiNum[3] = 10;

语句是什么意思?我主核里有,从核里面没有的时候,调用EDMA3_DRV_enableTransfer的时候,callback函数里的irqRaised就一直是零,从核加上之后,irqRaised就是负数,主核EDMA3_DRV_enableTransfer是可以正常调用的?很困惑!求大神指点,谢谢!