STM32H743做SDRAM时出现错误

ddfha1

原子哥，现在用STM32H743做SDRAM时出现这个错误如何解决

..\OBJ\Template.axf: Error: L6982E: AT section main.o(.ARM.__AT_0xC0000000) with base 0xc0000000 limit 0xc007a120 overlaps address range with AT section usarthandler.o(.ARM.__AT_0xC0000000) with base 0xc0000000 limit 0xc00a4100.

是定义冲突了吗，SDRAM地址冲突了？