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DM6437 EMAC LOOPBACK例程问题



前一段时间在TI的dm6437 EVM上跑附带的EMAC loopback 例程,显示通过了。这几天再跑这个程序,就不行了,输出框显示FAIL... error code 12...quitting
。大家有谁出现过这种情况,原因可能是啥呢?