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标题:
EMMC启动问题
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作者:
xmchen
时间:
2023-5-10 09:05
标题:
EMMC启动问题
设备-20到50度，kernel都能正常起来，升温到55度的时候，有个别板子会出现校验异常，这种可能是什么原因导致的
C& e* ~$ y+ v1 t6 O% O
DRAM: 128 MiB
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Top of RAM usable for U-Boot at: 88000000
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Reserving 0k for LCDC at: 877ff000
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Reserving 245k for U-Boot at: 877c0000
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Reserving 65568k for malloc() at: 837b8000
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Reserving 32 Bytes for Board Info at: 837b7fe0
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Reserving 128 Bytes for Global Data at: 837b7f60
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Reserving 128k for boot params() at: 83797f60
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Stack Pointer at: 83797f48
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Now running in RAM - U-Boot at: 877c0000
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MMC: msc: 0
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pixel_clock = 30004000
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video configure is ok!
# B9 V- e4 ?% { q. |; T/ R- ?/ g# d
dump_lcdc_registers
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In: serial
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Out: lcd
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Err: lcd
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Hit any key to stop autoboot: 0
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## Booting kernel from Legacy Image at 80f00000 ...
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Image Name: Linux-3.10.14
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Image Type: MIPS Linux Kernel Image (gzip compressed)
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Data Size: 5160677 Bytes = 4.9 MiB
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Load Address: 80001000
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Entry Point: 8063d060
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Verifying Checksum ... Bad Data CRC
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ERROR: can't get kernel image!
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halley2_plus#
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作者:
apeng168
时间:
2023-5-10 10:21
八成是PCB阻抗、时序问题，也不排除器件本身不行
作者:
6940
时间:
2023-5-10 13:03
66666666666666666666666666666666
作者:
Lanceoo01
时间:
2023-5-11 13:30
跟温度有关，信号质量最好测测
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