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C6678关于指定某个事件与中断号对应问题

Other Parts Discussed in Thread: TMS320C6678

硬件:TMS320C6678

调试器:wintech usb510plus

我想设定核间中断对应为4号中断:

根据手册核间中断对应91号事件IPC_LOCAL,想让他对应4号中断,是不是就是设定INTMUX1中前7位的值为5B。然后在设定IER,IPCGRx等相关寄存器就可以了?

我看CSL_intcOpen(x,x,x,x)函数是用来map某个事件到某个中断号的,但是他最后对INTMUXx寄存器操作的时候,并不是直接把event_id直接写入寄存器的,是经过一些操作后,最终写入的值并不等于event_id,这是为什么呢?