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在6457的SRIO模块中使用DOORBELL发送中断的问题

RT,小弟现在在学习DSP驱动开发,在使用RapidIO发送doorbell中断时,除了配置LSU寄存器外,还需要配置DOORBELL_ICS寄存器和DOORBELL_ICR寄存器吗?还有就是DOORBELL_ICR寄存器对应的8个中断事件和DSP中的中断向量怎么关联呢?求解!