STM32基于FSMC的SRAM扩展技术

FSMC-based SRAM Extention Technology on STM32

FSMC是STM32在一些应用中需要扩展功能时使用的一种接口技术。以IS61LV51216在STM32F103ZET6芯片上的应用为例,介绍了STM32系列芯片通过FSMC扩展SRAM的方法,给出了硬件电路设计,还分别使用库开发方式和直接配置寄存器方式编写了程序软件,并对这两种开发方式的优劣进行了对比分析。其硬件软件设计在实际项目中应用效果良好,并对通过FSMC扩展其他功能也有参考意义。

This paper takes the application of IS61LV5121 to the chip STM32F103ZET6 as an example and introduces how STM32 series of chips expand SRAM through FSMC.In this paper,not only the hardware circuit design is presented,but also a program software is written by using library development method and directly configuring register.Furthermore,these two development methods are compared and analyzed.