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user4579300 说:暂定Block2~Block13作为Application程序的存储区域。备用的Application固件通过SPI通信的外部Flash存储单元中,分别编写了Bootloader与Application程序的测试工程,
这部分没看懂,你的bootloader程序和应用程序是存储在外部flash中的?还是只是备用程序存储在外部flash?