STM32F746 NAND读取ID正常，但读写全是FF

yuankes

先擦除、然后编程、最后读取扇区内容。

hycrgqb

你这个设置不是NAND的，用CUBE生成如下：
  hnand1.Instance = FMC_NAND_DEVICE;
  /* hnand1.Init */
  hnand1.Init.NandBank = FMC_NAND_BANK3;
  hnand1.Init.Waitfeature = FMC_NAND_WAIT_FEATURE_ENABLE;
  hnand1.Init.MemoryDataWidth = FMC_NAND_MEM_BUS_WIDTH_8;
  hnand1.Init.EccComputation = FMC_NAND_ECC_DISABLE;
  hnand1.Init.ECCPageSize = FMC_NAND_ECC_PAGE_SIZE_512BYTE;
  hnand1.Init.TCLRSetupTime = 3;
  hnand1.Init.TARSetupTime = 3;
  /* hnand1.Config */
  hnand1.Config.PageSize = 4096;
  hnand1.Config.SpareAreaSize = 224;
  hnand1.Config.BlockSize = 64;
  hnand1.Config.BlockNbr = 2048;
  hnand1.Config.PlaneNbr = 0;
  hnand1.Config.PlaneSize = 0;
  hnand1.Config.ExtraCommandEnable = DISABLE;
  /* ComSpaceTiming */
  ComSpaceTiming.SetupTime = 9;
  ComSpaceTiming.WaitSetupTime = 9;
  ComSpaceTiming.HoldSetupTime = 10;
  ComSpaceTiming.HiZSetupTime = 9;
  /* AttSpaceTiming */
  AttSpaceTiming.SetupTime = 9;
  AttSpaceTiming.WaitSetupTime = 9;
  AttSpaceTiming.HoldSetupTime = 10;
  AttSpaceTiming.HiZSetupTime = 9;

正点原子

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yuankes

hycrgqb 发表于 2020-4-1 09:35
你这个设置不是NAND的，用CUBE生成如下：
  hnand1.Instance = FMC_NAND_DEVICE;
  /* hnand1.Init */

我板子上的NAND就是挂在区域1的SRAM3上的，初始化没错，是我的读写函数有问题