求助：编译时出错~overlap是因为什么引起的？

困扰了好几天了哪位大虾指点一下好吗?

我的是VPM642的开发板，1.1

>> error: memory types ISRAM and ISRAM on page 0 overlap
>> error: memory types SDRAM and SDRAM on page 0 overlap

就是这两句不懂，也查不出原因