我在MPLAB IDE的Configure-Configuration bits中将Boot Segment Program Flash Code Protection设置为Standard Security,Small-sized Boot  Flash后，编译程序可以，到了烧写的时候就跳出“Code Protection Warning ”对话框。内容是：you are trying to program over code protected areas of the device.To do this you must select segment programming on the Secure Segment property page and indicate which segments of the device you wish to program.。关闭对话框后，烧写就失败了。之后我又去Configure-Configuration bits中，将上面的修改改回来，可以还是会出现这个代码保护警告。不能烧写，不能擦除。请问是什么原因。MPLAB IDE v8.66

警告窗口 (原文件名:QQ截图20111206163908.jpg)


Configure-Configuration bits (原文件名:QQ截图20111206165338.jpg)