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TMS6487 多核同时调用rapidio接口的问题



我想问下,在三个核同时调用rapidio接口的时候,6487是否有机制避免数据阻塞冲突? 现在在测试板子的时候,发现如果单个核调用rapidio接口的话,三个核都可以正常发送,但是如果三个核同时调用rapidio接口的话,第三个核会出现completion code代码为6的错误(Doorbell RETRY response )。请问这种现象是因为三个核同时调用rapidio接口出现了阻塞吗?(6487只有一个rapidio线路)