当我按照论坛中的另一个帖子（帖子链接在最后），进行远程升级时，我遇到了一个问题，在SBL文件的配置和生成过程是很顺利的，随后我使用MCUXpresso IDE生成了一个HELLO_WORLD APP，并且为这个APP生成了与SBL相匹配的头，按照教程我将APP通过NXP-MCUBootUtility烧写到0x30100000地址下，对板卡进行复位，SBL成功启动，并且能够引导APP程序，串口可以打印出HELLO信息
随后我尝试使用Keil生成一个HELLO_WORLD APP，并对这个APP配置了与上面相同的SBL头，并也将APP通过通过NXP-MCUBootUtility烧写到0x30100000地址下，对板卡进行复位，SBL成功启动，并且能够引导APP程序，但串口无任何打印信息
我认为这样的现象是SBL正常、且对于APP配置的头也正常，这样才能对APP进行正确的引导，但是APP内容或配置不正常，导致的无法正常输出打印信息
我对比了我用MCUXpresso编译APP时和用keil编译APP时的操作
对于MCUXpresso来说，我去掉了FCB头，并且配置了FLASH地址偏移到了0x30100400
对于Keil来说，我同样去掉了FCB头，并且配置了FLASH地址偏移到了0x30100400
但最后，keil生成出的bin加上引导头后，经过SBL引导，并不能成功打印出，但MCUXpresso的却可以成功打印，请帮忙看看是哪里出了问题，谢谢
PS：帖子链接如下
Hi @YueXia ,
对于SDK的keil project，修改flash起始地址不是在Target界面里，而是在Linker界面里编辑scf文件。
Have a great day,
Kan
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Hi @YueXia ,
对于SDK的keil project，修改flash起始地址不是在Target界面里，而是在Linker界面里编辑scf文件。
Have a great day,
Kan
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
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