STM32的APP程序不仅可以放到FLASH里面运行，也可以放到SRAM里面运行，本章，我们将制作两个APP，一个用于FLASH运行，一个用于SRAM运行-STM32 of the APP program which can not only run into FLASH, SRAM can also be placed inside run, this chapter, we will make two APP, one for FLASH run, a run for SRAM