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TMS320F280049: 使用DCAN接收数据,CAN_readMessage函数执行时间很长

Part Number: TMS320F280049


实际测试,CAN_sendMessage()和 CAN_readMessage()执行时间过长,CAN_readMessage接收8bytes 需要4.2us,与波特率没有关系,在28335 ECAN里面取数据,可以直接读寄存器来读取数据,现在DCAN程序执行时间过长,有办法能够解决吗?