STM32F10x的手册描述:
Boot from the embedded SRAM: SRAM is accessible only at address 0x2000 0000
STM32L4的手册描述:
Boot from the embedded SRAM1: the SRAM1 is aliased in the boot memory space(0x0000 0000), but it is still accessible from its original memory space (0x2000 0000).