之前参考了这一篇https://blog.csdn.net/GJF712/article/details/125175264 ,将U-Boot默认串口改为了串口2,烧录之后发现U-Boot无法正常运行,下面是log:
U-Boot SPL 2018.01-05679-g013ca45-dirty (Aug 17 2022 - 05:54:10)
DRAM: 32 MiB
Trying to boot from MMC1
Card did not respond to voltage select!
mmc_init: -95, time 22
spl: mmc init failed with error: -95
Trying to boot from sunxi SPI
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@LIQIONG
这个log是uart2的console打印的吗?如果是uart2打印的就说明,串口是适配成功了,在看看其他问题吧。不行的话在你参考的帖子下面,加我QQ。发给我,你板子原理图一块看看。
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