出现这样的情况是由于器件配置字（Dev.Config）中的参数设置不当。

正确的设置应该是这样的：UBA start block应该是小于All Blocks，Size of UBA blocks应该小于或者等于All Blocks减去UBA start block。Boot start block应该是小于All Blocks，Size of Boot blocks小于或者等于All Block减去UBA start block。

如果在Reserved模式下面，UBA start block应该是小于RBA start block ，Size of UBA blocks 也应该是小于RBA start block减去UBA start block，RBA start block应该大于UBA start block加Size of UBA blocks、并且小于All Blocks，Size of RBA blocks应该小于All Blocks减去RBA start block。

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