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28034内部Flash划出一个扇区模拟Eeprom的功能，擦除是按整个扇区进行。编写可以单个地址，
请问对同一个地址进行多次编写内容的时候。是不是每次都要重新擦除整个扇区？
从zhcaai3a.pdf这份资料上看有如下描述：。
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是的，扇区的擦除只能一次擦除一整个扇区。你标红框的上面2行有说明：
The smallest amount of memory that can be erased at a time is a single sector.
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