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AM335x MMC SD卡多块读写

在进行AM335x 的SD卡多块写时,只能正确写入第一个块的数据。

我是按照以下步骤来进行的:

1.配置ACE(auto cmd12),MBS(multiblock select),BCE(block count enable)

2.发送ACMD23,设置要写入块的个数;

3. 发送CMD25;

没有成功,请问还有其他需要注意的细节吗?