页次： 1
请问各位大侠，u-boot启动信息中有"boot from FEL"或”boot from MMC1",象下面2段u-boot启动信息：
U-Boot SPL 2018.01-05679-g013ca457fd (Apr 29 2022 - 07:58:42)
DRAM: 32 MiB
Trying to boot from FEL
U-Boot SPL 2018.01-05679-g013ca457fd (Apr 29 2022 - 07:58:42)
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
请问，什么情况下会出现“boot from FEL”的启动信息呢？谢谢
请教各位大侠，F1C100S的CSI的OUTPUT_FMT的具体含义在其手册中没有介绍，有谁知道以下这些输出格式的具体含义吗？求赐教，谢谢
field planar YCbCr 422
field planar YCbCr 420
frame planar YCbCr 422
frame planar YCbCr 420
field planar YCbCr 422 UV combined
field planar YCbCr 420 UV combined
frame planar YCbCr 422 UV combined
frame planar YCbCr 420 UV combined
field MB YCbCr 422
field MB YCbCr 420
frame MB YCbCr 420
frame MB YCbCr 422
planar YUV 422
planar YUV 420
planar YUV 422 UV combined
planar YUV 420 UV combined
MB YUV 422
MB YUV 420
仔细研究上面的故障信息，发现：libc.texinfo文件路径为buildroot-tiny200/output/build/glibc-2.30-73-gd59630f9959b0bb8991964758ab854ff4378b20d/manual，在这个目录下确实没有故障信息中提示的dir-add.texi、pkgvers.texi、version.texi、top-menu.texi和chapters.texi，
这些文件都在buildroot-tiny200/output/build/glibc-2.30-73-gd59630f9959b0bb8991964758ab854ff4378b20d/build/manual目录下，于是将这个目录下的全部文件都拷贝到buildroot-tiny200/output/build/glibc-2.30-73-gd59630f9959b0bb8991964758ab854ff4378b20d/manual目录下，
重新make，编译没有在报同样错误。猜测在那个Makefile文件中缺少了拷贝这个动作。
在后续编译过程中，依然报错如下：
Traceback (most recent call last):
File "./setup.py", line 2443, in <module>
main()
File "./setup.py", line 2414, in main
setup(# PyPI Metadata (PEP 301)
File "/home/zxc/桌面/buildroot-tiny200/output/build/host-python3-3.8.6/Lib/distutils/core.py", line 148, in setup
dist.run_commands()
File "/home/zxc/桌面/buildroot-tiny200/output/build/host-python3-3.8.6/Lib/distutils/dist.py", line 966, in run_commands
self.run_command(cmd)
File "/home/zxc/桌面/buildroot-tiny200/output/build/host-python3-3.8.6/Lib/distutils/dist.py", line 985, in run_command
cmd_obj.run()
File "/home/zxc/桌面/buildroot-tiny200/output/build/host-python3-3.8.6/Lib/distutils/command/build.py", line 135, in run
self.run_command(cmd_name)
File "/home/zxc/桌面/buildroot-tiny200/output/build/host-python3-3.8.6/Lib/distutils/cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "/home/zxc/桌面/buildroot-tiny200/output/build/host-python3-3.8.6/Lib/distutils/dist.py", line 985, in run_command
cmd_obj.run()
File "/home/zxc/桌面/buildroot-tiny200/output/build/host-python3-3.8.6/Lib/distutils/command/build_ext.py", line 343, in run
self.build_extensions()
File "./setup.py", line 323, in build_extensions
self.detect_modules()
File "./setup.py", line 1710, in detect_modules
self.detect_ctypes()
File "./setup.py", line 2059, in detect_ctypes
print('Header file {} does not exist'.format(ffi_h))
UnicodeEncodeError: 'utf-8' codec can't encode character '\udce6' in position 23: surrogates not allowed
make[2]: *** [Makefile:616：sharedmods] 错误 1
make[1]: *** [package/pkg-generic.mk:269：/home/zxc/桌面/buildroot-tiny200/output/build/host-python3-3.8.6/.stamp_built] 错误 2
make: *** [Makefile:84：_all] 错误 2在网上查找了半天，也没找到解决办法，干脆如下操作：
在make menuconfig中取消以下选项：
Host utilities --->
(*) host python3
重新make，顺利完成整个编译过程
仔细看了本帖前面的部分，发现git clone后还需要pull操作，于是如下操作:
$cd buildroot-tiny200
$git remote -v
origin https://github.com/aodzip/buildroot-tiny200.git (fetch)
origin https://github.com/aodzip/buildroot-tiny200.git (push)
$git pull origin master
来自 https://github.com/aodzip/buildroot-tiny200
* branch master -> FETCH_HEAD
已经是最新的。
$make clean
$make widora_mangopi_r3_defconfig
$make
......
故障现象和前面一模一样，于是我这初学者蒙了......，有哪个高手能指点一下吗，谢了！！！
@aodzip,你好！我用你的buildroot-tiny200，出现问题，能帮我解答一下吗？谢谢！(ubuntu20.04)
$git clone [url]https://github.com/aodzip/buildroot-tiny200.git[/url]
$cd buildroot-tiny200
$make widora_mangopi_r3_defconfig
$make
........
libc.texinfo:21: @include: could not find dir-add.texi
libc.texinfo:23: @include: could not find pkgvers.texi
libc.texinfo:38: @include: could not find version.texi
libc.texinfo:53: warning: undefined flag: VERSION
libc.texinfo:53: warning: undefined flag: PKGVERSION
libc.texinfo:87: warning: undefined flag: VERSION
libc.texinfo:90: warning: undefined flag: PKGVERSION
libc.texinfo:117: warning: undefined flag: VERSION
libc.texinfo:119: warning: undefined flag: PKGVERSION
libc.texinfo:124: @include: could not find top-menu.texi
libc.texinfo:125: @include: could not find chapters.texi
libc.texinfo:112: Next reference to nonexistent `Introduction'
libc.texinfo:127: Prev reference to nonexistent `Contributors'
make[4]: *** [Makefile:142: /home/zxc/桌面/buildroot-tiny200/output/build/glibc-2.30-73-gd59630f9959b0bb8991964758ab854ff4378b20d/build/manual/libc.info] Error 1
make[3]: *** [Makefile:259: manual/subdir_install] Error 2
make[2]: *** [Makefile:12：install] 错误 2
make[1]: *** [package/pkg-generic.mk:310：/home/zxc/桌面/buildroot-tiny200/output/build/glibc-2.30-73-gd59630f9959b0bb8991964758ab854ff4378b20d/.stamp_staging_installed] 错误 2
make: *** [Makefile:84：_all] 错误 2页次： 1