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OMAPL138跑SDK中的mmcsd例子,SD无法读写??

Other Parts Discussed in Thread: TMS320C6748

       

        我用LCDK-OMAPL138开发板跑 TMS320C6748 SYS/BIOS 软件开发套件 (SDK)  中的mmcsd的例子程序,程序运行可

以得到卡的大小,扇区等信息,但对sd读写时就卡住不动了,sd卡也没有写保护,有TI的大神解释为什么会这样子呢?急!!!

        我用的是BIOS 6_35_04_50版本其他都用的SDK中的东西