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- 2023-5-18
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各位大佬
imx6q的核心板,emmc工作在52M的频率,启动异常,读写报错.频率改成13M,就能够正常启动.
Buffer I/O error on dev mmcblk3p2, logical block 53874, lost async page write
blk_update_request: I/O error, dev mmcblk3, sector 1659800
Buffer I/O error on dev mmcblk3p2, logical block 53875, lost async page write
blk_update_request: I/O error, dev mmcblk3, sector 1659808
Buffer I/O error on dev mmcblk3p2, logical block 53876, lost async page write
blk_update_request: I/O error, dev mmcblk3, sector 1659816
Buffer I/O error on dev mmcblk3p2, logical block 53877, lost async page write
mmcblk3: error -84 transferring data, sector 1659856, nr 296, cmd response 0x900, card status 0xd00
mmcblk3: error -84 transferring data, sector 2512888, nr 104, cmd response 0x900, card status 0xd00
mmcblk3: error -84 transferring data, sector 2513000, nr 368, cmd response 0x900, card status 0xd00
mmcblk3: error -84 transferring data, sector 2513376, nr 832, cmd response 0x900, card status 0xd00
mmcblk3: error -84 transferring data, sector 2514216, nr 1024, cmd response 0x900, card status 0xd00
同时本人测试了几个不同的底板,同一块核心伴在不同的底板上,能够跑的最大频率不一样,以下是emmc部分的电路,同时本人测试了在clk上加电阻,效果不大.
请问,论坛中的工程师,有人碰到过相关的问题吗?万分感谢
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