30 RTT 中利用FSMC驱动SRAM代码

发布于 2020-10-08 22:13:15 浏览：2050 订阅该版

红枫认证专家 2020-10-09

这家伙很懒，什么也没写！

可以参考以下代码
```c
static void fsmc_port_init(void)
{
    SRAM_HandleTypeDef hsram;
    FSMC_NORSRAM_TimingTypeDef Timing = {0};
    
    memset(&hsram,0,sizeof(hsram));
    hsram.Instance = FSMC_NORSRAM_DEVICE;
    hsram.Extended = FSMC_NORSRAM_EXTENDED_DEVICE;
    
    hsram.Init.NSBank = FSMC_NORSRAM_BANK3;
    hsram.Init.DataAddressMux = FSMC_DATA_ADDRESS_MUX_DISABLE;
    hsram.Init.MemoryType = FSMC_MEMORY_TYPE_SRAM;
    hsram.Init.MemoryDataWidth = FPGA_DATA_WIDTH;
    hsram.Init.BurstAccessMode = FSMC_BURST_ACCESS_MODE_DISABLE;
    hsram.Init.WaitSignalPolarity = FSMC_WAIT_SIGNAL_POLARITY_LOW;
    hsram.Init.WrapMode = FSMC_WRAP_MODE_DISABLE;
    hsram.Init.WaitSignalActive = FSMC_WAIT_TIMING_BEFORE_WS;
    hsram.Init.WriteOperation = FSMC_WRITE_OPERATION_ENABLE;
    hsram.Init.WaitSignal = FSMC_WAIT_SIGNAL_DISABLE;
    hsram.Init.ExtendedMode = FSMC_EXTENDED_MODE_DISABLE;
    hsram.Init.AsynchronousWait = FSMC_ASYNCHRONOUS_WAIT_DISABLE;
    hsram.Init.WriteBurst = FSMC_WRITE_BURST_DISABLE;
    hsram.Init.PageSize = FSMC_PAGE_SIZE_NONE;
    
    Timing.AddressSetupTime = 2;//0;
    Timing.AddressHoldTime = 0;
    Timing.DataSetupTime = 8;
    Timing.BusTurnAroundDuration = 0;
    Timing.CLKDivision = 0;
    Timing.DataLatency = 0;
    Timing.AccessMode = FSMC_ACCESS_MODE_A;
    
    HAL_SRAM_Init(&hsram, &Timing, &Timing); 
    
    LOG_D("FPGA FSMC port init ok!");
}
```