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AM335x 支持多大的TF卡？

jianhui alvin
Expert 1463 points


AM335x  支持多大的TF卡？这个与linux有关还是跟芯片有关？

  • 0
    TI__Mastermind 25020 points

    常见的2G、4G、8G都支持。

    从启动的角度来说和芯片的rom code相关；后续的文件读写之类的，和driver相关程度较大。

    启动部分，参考TRM手册的26.1.7.5 MMC / SD Cards

  • 0 回复 Steven Liu1
    Expert 1463 points

    谢谢回答。

    目前，我公司已经在mmc1用到32G的emmc作启动了，mmc0作为外部扩展；现在想知道mmc0能支持最大多大的TF卡，这个也是客户想知道的

  • 0 回复 Steven Liu1
    Expert 1463 points

    你好，我想知道的是在系统里面，能用最大多大的TF卡，现在我手上一张128G的，在系统里面用不了。

    [ 1402.462951] mmc1: new high speed SDXC card at address 59b4
    [ 1402.471862] mmcblk1: mmc1:59b4 119 GiB
    [ 1405.507415] mmcblk1: error -110 sending status command, retrying
    [ 1405.519683] mmcblk1: error -110 sending stop command, original cmd response 0
    x280d, card status 0x1001c02
    [ 1405.529785] mmcblk1: error -84 transferring data, sector 0, nr 8, cmd respons
    e 0x280d, card status 0x0
    [ 1405.539581] mmcblk1: retrying using single block read
    [ 1410.085998] mmcblk1: error -110 sending status command, retrying
    [ 1410.101470] mmcblk1: timed out sending r/w cmd command, card status 0x1003805

    [ 1413.140380] mmcblk1: timed out sending r/w cmd command, card status 0x1003805

    [ 1413.147949] end_request: I/O error, dev mmcblk1, sector 0
    [ 1413.153625] Buffer I/O error on device mmcblk1, logical block 0
    [ 1416.196838] mmcblk1: timed out sending r/w cmd command, card status 0x803805
    [ 1420.743469] mmcblk1: error -110 sending status command, retrying
    [ 1422.261810] wl12xx: ERROR watchdog interrupt received! starting recovery.
    [ 1422.269866] wl12xx: Reading FW panic log