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< / div > < div class = "- topic/body concept/conbody body conbody" > < div class = "- topic/p p" data-ofbid = "d249741e23__20250121171702" > 在执行启动流程调试或者模块调试时，通过串口打印信息进行调试是一种常见的方法。通过 < span class = "+ topic/ph sw-d/filepath ph filepath" > Kconfig< / span > 配置中的
< span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > ArtInChip debug< / span > 选项，可以使能打印信息，详细流程如下：< ol class = "- topic/ol ol" id = "print_setting_d21x__ol_r5s_4nj_sdc" data-ofbid = "print_setting_d21x__ol_r5s_4nj_sdc" > < li class = "- topic/li li" data-ofbid = "d249741e32__20250121171702" > 进入 U-Boot
菜单配置界面：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "print_setting_d21x__codeblock_o4r_pnj_sdc" data-ofbid = "print_setting_d21x__codeblock_o4r_pnj_sdc" > make uboot-menuconfig< / pre > < / li > < li class = "- topic/li li" data-ofbid = "d249741e36__20250121171702" >
< div class = "- topic/p p" data-ofbid = "d249741e38__20250121171702" > 在菜单配置中，找到并展开 < code class = "+ topic/ph pr-d/codeph ph codeph" > ArtInChip debug< / code >
选项：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "print_setting_d21x__pre_yv5_fvr_c1c" data-ofbid = "print_setting_d21x__pre_yv5_fvr_c1c" > ArtInChip debug ---> < / pre > < pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "print_setting_d21x__pre_zv5_fvr_c1c" data-ofbid = "print_setting_d21x__pre_zv5_fvr_c1c" > [ ] Enable early print information
[ ] Enable device binding log
[ ] Enable mmc driver log
[ ] Enable spi-nand driver log
[ ] Enable spi-nor driver log
[ ] Enable spi driver log
[ ] Enable mmc framework trace log
[ ] Show boot time
[ ] Show UBI debug log
< / pre > < / div >
< / li > < li class = "- topic/li li" data-ofbid = "d249741e48__20250121171702" >
< p class = "- topic/p p" data-ofbid = "d249741e50__20250121171702" > 勾选 < span class = "+ topic/keyword pr-d/parmname keyword parmname" > Enable early print information< / span >
选项，可以将串口初始化之前的调试信息打印出来。< / p >
< div class = "- topic/note note note note_note" id = "print_setting_d21x__note_wnc_gvr_c1c" data-ofbid = "print_setting_d21x__note_wnc_gvr_c1c" > < span class = "note__title" > 注：< / span >
< p class = "- topic/p p" data-ofbid = "d249741e58__20250121171702" > 在 SPL 中，如果使用了 < span class = "+ topic/keyword pr-d/parmname keyword parmname" > TINY_PRINTF< / span > 宏，则避免同时使能 < span class = "+ topic/keyword pr-d/parmname keyword parmname" > Enable
early print information< / span > ，否则可能会产生冲突，导致调试信息无法正确打印。< / p >
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< / li > < li class = "- topic/li li" data-ofbid = "d249741e68__20250121171702" >
< p class = "- topic/p p" data-ofbid = "d249741e70__20250121171702" > 完成配置后，保存并退出菜单配置界面。< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d249741e73__20250121171702" >
< p class = "- topic/p p" data-ofbid = "d249741e75__20250121171702" > 编译 U-Boot< / p >
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