1、在Bosch_CAN_User's_Manual.pdf里这句话是不是说只要总线上有数据，不管是不是给我的，都会引起中断。
RxOk Received a Message Successfully
one Since this bit was last reset (to zero) by the CPU, a message has beensuccessfully received(independent of the result of acceptance filtering).
zero Since this bit was last reset by the CPU, no message has been success-fully received. This bit is never reset by the CAN Core.
2、如何清接收缓冲。一直都没弄明白，将数据接收下来后，怎么清了接收缓冲。不清的话，下次中断来的时候，如果不是发给我的数据，我去接收的话，会读到上一次发给我的数据。
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楼主
