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FSMC ​

c
HAL_StatusTypeDef HAL_SRAM_Init ( SRAM_HandleTypeDef *hsram, 
                                  FSMC_NORSRAM_TimingTypeDef *Timing, 
                                  FSMC_NORSRAM_TimingTypeDef *ExtTiming)

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FMC ​

SDRAM ​

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驱动步骤 ​

首先需要配置FMC, 使能对应的时钟, 配置对应的I/O口

之后设置相关的参数, 控制参数以及时序参数, 调用HAL_SDRAM_Init实现

之后发送初始化序列, 时钟配置使能, 所有区域进行预充电, 设置自刷新次数, 配置模式寄存器

配置刷新的频率, HAL_SDRAM_ProgramRefresh函数

SRAM ​

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FLASH ​

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