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为什么在CCS4中无法擦除28027的FLASH?在RAM中仿真一切正常，反复设置，重新安装都无法解决，而以前都是可以就从前几天开始！快要疯了，麻烦哪位大侠指点迷津！
flying,
麻烦描述一下无法擦除的具体操作，以及出现的警告或错误？芯片是否上锁？如果要找到问题，可以换一块板子来排除是否芯片上锁。
eric
