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2808的Flash擦除的时候能否只擦除4K,而不擦除16K?



最近项目上要实现2808的远程升级,因此需要自己写一个bootloader,但是由于2808的Flash只有64K,且每次擦除flash只能16K为单位擦除,导致bootloader至少要留16K,但是另外一个矛盾是限制代码已经达到43K了,这样后面再加功能就不够用了,因此寻求是否有擦除Flash以更小的单位擦除的方法。