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使用emif1_16bit_sdram_far例程,单步调试发现每次写入会在两个地址同时写入数据,例如:在0x80000000写入0x1时,会同时在0x80000200处写入0x1,然后是0x80000001和0x80000201,以此类推。想问可能是什么原因造成的?