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TMS320C6678的ECC功能不能正常使用



我设计了一个8GB内存+1GB的ECC的C6678板卡,在不使能ECC功能的时候,C6678操作内存,正常。使能ECC功能(配置ECC的3个寄存器),指定ECC的地址范围后,被指定ECC的地址范围内的内存读出的数据全为0,没有指定ECC的地址范围可正常访问,可认为开启ECC 功能后,内存访问不正常了,查看ECC中断,有错误中断上报,求帮助。