STM32F746使用FSMC驱动SSD1963刷屏速度能达到多大？

stm_fpga

如题，没有使用F7自带的LCD驱动，屏是4.3寸，480*272，使用FSMC驱动SSD1963，配置SSD1963的时钟已经最大，测试了一下，单纯刷屏，刷屏时间大约为90多毫秒，FSMC配置如下

void MX_FMC_Init(void)
{
  FMC_NORSRAM_TimingTypeDef Timing;
  FMC_NORSRAM_TimingTypeDef ExtTiming;

  /** Perform the SRAM1 memory initialization sequence
  */
  hsram1.Instance = FMC_NORSRAM_DEVICE;
  hsram1.Extended = FMC_NORSRAM_EXTENDED_DEVICE;
  /* hsram1.Init */
  hsram1.Init.NSBank = FMC_NORSRAM_BANK4;
  hsram1.Init.DataAddressMux = FMC_DATA_ADDRESS_MUX_DISABLE;
  hsram1.Init.MemoryType = FMC_MEMORY_TYPE_SRAM;
  hsram1.Init.MemoryDataWidth = FMC_NORSRAM_MEM_BUS_WIDTH_16;
  hsram1.Init.BurstAccessMode = FMC_BURST_ACCESS_MODE_DISABLE;
  hsram1.Init.WaitSignalPolarity = FMC_WAIT_SIGNAL_POLARITY_LOW;
  hsram1.Init.WaitSignalActive = FMC_WAIT_TIMING_BEFORE_WS;
  hsram1.Init.WriteOperation = FMC_WRITE_OPERATION_ENABLE;
  hsram1.Init.WaitSignal = FMC_WAIT_SIGNAL_DISABLE;
  hsram1.Init.ExtendedMode = FMC_EXTENDED_MODE_ENABLE;
  hsram1.Init.AsynchronousWait = FMC_ASYNCHRONOUS_WAIT_DISABLE;
  hsram1.Init.WriteBurst = FMC_WRITE_BURST_DISABLE;
  hsram1.Init.ContinuousClock = FMC_CONTINUOUS_CLOCK_SYNC_ONLY;
  hsram1.Init.WriteFifo = FMC_WRITE_FIFO_DISABLE;
  hsram1.Init.PageSize = FMC_PAGE_SIZE_NONE;
  /* Timing */
  Timing.AddressSetupTime = 2;
  Timing.AddressHoldTime = 15;
  Timing.DataSetupTime = 8;
  Timing.BusTurnAroundDuration = 15;
  Timing.CLKDivision = 16;
  Timing.DataLatency = 17;
  Timing.AccessMode = FMC_ACCESS_MODE_A;
  /* ExtTiming */
  ExtTiming.AddressSetupTime = 2;
  ExtTiming.AddressHoldTime = 15;
  ExtTiming.DataSetupTime = 4;
  ExtTiming.BusTurnAroundDuration = 15;
  ExtTiming.CLKDivision = 16;
  ExtTiming.DataLatency = 17;
  ExtTiming.AccessMode = FMC_ACCESS_MODE_A;
  HAL_SRAM_Init(&hsram1, &Timing, &ExtTiming);
}
不知各位各位使用SSD1963刷屏480*272需要多呈时间？

jcx0324

没有F7玩...

eric2013

Timing.AddressSetupTime = 2;
  Timing.AddressHoldTime = 15;
  Timing.DataSetupTime = 8;
  Timing.BusTurnAroundDuration = 15;
  Timing.CLKDivision = 16;
  Timing.DataLatency = 17;
  Timing.AccessMode = FMC_ACCESS_MODE_A;

这些时序参数设的小些，90ms一张480*272的单色图有些慢了。