是否有人使用407 FSMC配置NAND接口8bit

2万 · 2021-3-16 23:42

访问BANK3地址0x80000000 写入0xA5，WE（PD5）输出不会变低，D[7:0]也没任何反应。

1万 · 2021-3-16 23:44

配置看看

2万 · 2021-3-16 23:46

/// 配置了以下管脚及FSMC控制器
#ifdef FSMC_AS_NAND
      GPIO_Config_FSMC(GPIOD, PD5_FSMC_nWE);

      /* D[4:0] : Bus Line */
      GPIO_Config_FSMC(GPIOD, PD14_FSMC_D0);
      GPIO_Config_FSMC(GPIOD, PD15_FSMC_D1);
      GPIO_Config_FSMC(GPIOD, PD0_FSMC_D2);
      GPIO_Config_FSMC(GPIOD, PD1_FSMC_D3);
      GPIO_Config_FSMC(GPIOE, PE7_FSMC_D4);
      GPIO_Config_FSMC(GPIOE, PE8_FSMC_D5);
      GPIO_Config_FSMC(GPIOE, PE9_FSMC_D6);
      GPIO_Config_FSMC(GPIOE, PE10_FSMC_D7);

FSMC_NANDInitStructure.NandBank = FSMC_NAND_BANK3;
FSMC_NANDInitStructure.MemoryDataWidth = FSMC_NAND_PCC_MEM_BUS_WIDTH_8;
FSMC_NANDInitStructure.Waitfeature = FSMC_NAND_PCC_WAIT_FEATURE_DISABLE;
FSMC_NANDInitStructure.EccComputation = FSMC_NAND_ECC_DISABLE;
FSMC_NANDInitStructure.ECCPageSize = FSMC_NAND_ECC_PAGE_SIZE_256BYTE;
FSMC_NANDInitStructure.TARSetupTime = 0;
FSMC_NANDInitStructure.TCLRSetupTime = 0;

FSMC_DEVICE.PageSize    = 512;
FSMC_DEVICE.BlockNbr    = 1; // total blocks
FSMC_DEVICE.BlockSize    = 512; // measured in number of pages
FSMC_DEVICE.PlaneSize    = 1; // measured in number of blocks
FSMC_DEVICE.PlaneNbr    = 1; // total planes
FSMC_DEVICE.SpareAreaSize = 0; // no spare memory
FSMC_DEVICE.ExtraCommandEnable = DISABLE;

FSMC_Timing.SetupTime    = 0x0;
FSMC_Timing.WaitSetupTime  = 0x2;
FSMC_Timing.HoldSetupTime  = 0x1;
FSMC_Timing.HiZSetupTime = 0x0;

FSMC_Handler.Instance    = FSMC_Bank2_3;
FSMC_Handler.Config       = FSMC_DEVICE;
FSMC_Handler.Init       = FSMC_NANDInitStructure;
FSMC_Handler.Lock       = HAL_UNLOCKED;
FSMC_Handler.State       = HAL_NAND_STATE_READY;

HAL_NAND_Init(&FSMC_Handler, &FSMC_Timing, &FSMC_Timing);
#endif

////////////// 执行写，不能在D[7:0]看到任何输出
  while(1)
{
   *(__IO uint8_t *)((uint32_t)(0x80000000)) = 0xA5;
  }

2万 · 2021-3-16 23:48

没看出来啥问题；

2万 · 2021-3-16 23:50

按理写那个BANK3地址就能WE变低才对

1万 · 2021-3-16 23:51

再增加一个读BANK3地址，就能看到高低切换

2万 · 2021-3-16 23:53

问题是怎么都看不到啊

1万 · 2021-3-16 23:55

你哪里定义FSMC的接口有0x80000000这个地址了？

2万 · 2021-3-16 23:57

FSMC_NANDInitStructure.NandBank = FSMC_NAND_BANK3; // 这个在定义在STM32F4 FSMC使用BANK3就是对应0x80000000

1万 · 2021-3-17 22:12

/* Send Read ID command sequence */
*(__IO uint8_t *)((uint32_t)(deviceaddress | CMD_AREA)) = NAND_CMD_READID;
*(__IO uint8_t *)((uint32_t)(deviceaddress | ADDR_AREA)) = 0x00U;
这两行代码可能对你有帮助

2万 · 2021-3-17 22:16

这两行其实是有2次写操作，先是内存地址，再是数据。
与我测试只写一次同。

1万 · 2021-3-17 22:18

void NAND_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
  FSMC_NAND_PCCARDTimingInitTypeDef  p;
  FSMC_NANDInitTypeDef FSMC_NANDInitStructure;

  /*FSMC总线使用的GPIO组时钟使能*/
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE |
                     RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG, ENABLE);

/*FSMC CLE, ALE, D0->D3, NOE, NWE and NCE2初始化，推挽复用输出*/
  GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_14 | GPIO_Pin_15 |
                              GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 |
                              GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(GPIOD, &GPIO_InitStructure);
  /*FSMC数据线FSMC_D[4:7]初始化，推挽复用输出*/
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;
  GPIO_Init(GPIOE, &GPIO_InitStructure);
  /*FSMC NWAIT初始化，输入上拉*/
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
  GPIO_Init(GPIOD, &GPIO_InitStructure);
  /*FSMC INT2初始化，输入上拉*/
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
  GPIO_Init(GPIOG, &GPIO_InitStructure);
  /*--------------FSMC 总线存储器参数配置------------------------------*/
  p.FSMC_SetupTime = 0x1;       //建立时间
  p.FSMC_WaitSetupTime = 0x3;    //等待时间
  p.FSMC_HoldSetupTime = 0x2;    //保持时间
  p.FSMC_HiZSetupTime = 0x1;    //高阻建立时间
  FSMC_NANDInitStructure.FSMC_Bank = FSMC_Bank2_NAND; //使用FSMC BANK2
  FSMC_NANDInitStructure.FSMC_Waitfeature = FSMC_Waitfeature_Enable; //使能FSMC的等待功能
  FSMC_NANDInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b; //NAND Flash的数据宽度为8位
  FSMC_NANDInitStructure.FSMC_ECC = FSMC_ECC_Enable;                //使能ECC特性
  FSMC_NANDInitStructure.FSMC_ECCPageSize = FSMC_ECCPageSize_2048Bytes; //ECC页大小2048
  FSMC_NANDInitStructure.FSMC_TCLRSetupTime = 0x00;
  FSMC_NANDInitStructure.FSMC_TARSetupTime = 0x00;
  FSMC_NANDInitStructure.FSMC_CommonSpaceTimingStruct = &p;
  FSMC_NANDInitStructure.FSMC_AttributeSpaceTimingStruct = &p;
  FSMC_NANDInit(&FSMC_NANDInitStructure);
  /*!使能FSMC BANK2 */
  FSMC_NANDCmd(FSMC_Bank2_NAND, ENABLE);
}

2万 · 2021-3-17 22:20

这个是人家写的一段初始化程序，你对比一下看看。你哪里缺些什么

2万 · 2021-3-17 22:22

感觉你对相关管脚没有配置（）

2万 · 2021-3-17 22:24

之前所用工程IO及FSMC配置是有的。

现在换了使用STM32F4CubeMX的HAL库工程，发现我之前的访问地址确实不对：
* 在使用的LQFP100封装，只有BANK1和BANK2，访问地址应该是0x70000000。
* 配置时，也就只能使用FSMC_NAND_BANK2。
但这样一改，配置后去访问对应的地址会导致程序飞掉！
访问0x60000000则不会跑飞，但总线上没有反应！！！  难道MX生成的HAL库工程有问题？！
static void HAL_FSMC_MspInit(void)
{
/* Peripheral clock enable */
  __HAL_RCC_FSMC_CLK_ENABLE();

  /** FSMC GPIO Configuration
  PE7 ------> FSMC_D4
  PE8 ------> FSMC_D5
  PE9 ------> FSMC_D6
  PE10 ------> FSMC_D7
  PD11 ------> FSMC_CLE
  PD12 ------> FSMC_ALE
  PD14 ------> FSMC_D0
  PD15 ------> FSMC_D1
  PD0 ------> FSMC_D2
  PD1 ------> FSMC_D3
  PD4 ------> FSMC_NOE
  PD5 ------> FSMC_NWE
  PD7 ------> FSMC_NCE2
  */
  /* GPIO_InitStruct */
  GPIO_InitStruct.Pin = GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  GPIO_InitStruct.Alternate = GPIO_AF12_FSMC;

  HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);

  /* GPIO_InitStruct */
  GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_14|GPIO_PIN_15
                        |GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5
                        |GPIO_PIN_7;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  GPIO_InitStruct.Alternate = GPIO_AF12_FSMC;

  HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
｝

/* FSMC initialization function */
void MX_FSMC_Init(void)
{
  FSMC_NAND_PCC_TimingTypeDef ComSpaceTiming;
  FSMC_NAND_PCC_TimingTypeDef AttSpaceTiming;

  /** Perform the NAND1 memory initialization sequence
  */
  hnand1.Instance = FSMC_NAND_DEVICE;
  /* hnand1.Init */
  hnand1.Init.NandBank = FSMC_NAND_BANK2;
  hnand1.Init.Waitfeature = FSMC_NAND_PCC_WAIT_FEATURE_DISABLE;
  hnand1.Init.MemoryDataWidth = FSMC_NAND_PCC_MEM_BUS_WIDTH_8;
  hnand1.Init.EccComputation = FSMC_NAND_ECC_DISABLE;
  hnand1.Init.ECCPageSize = FSMC_NAND_ECC_PAGE_SIZE_256BYTE;
  hnand1.Init.TCLRSetupTime = 0;
  hnand1.Init.TARSetupTime = 0;
  /* hnand1.Config */
  hnand1.Config.PageSize = 512;
  hnand1.Config.SpareAreaSize = 0;
  hnand1.Config.BlockSize = 512;
  hnand1.Config.BlockNbr = 1;
  hnand1.Config.PlaneNbr = 1;
  hnand1.Config.PlaneSize = 0;
  hnand1.Config.ExtraCommandEnable = DISABLE;
  /* ComSpaceTiming */
  ComSpaceTiming.SetupTime = -1;
  ComSpaceTiming.WaitSetupTime = 1;
  ComSpaceTiming.HoldSetupTime = 1;
  ComSpaceTiming.HiZSetupTime = 0;
  /* AttSpaceTiming */
  AttSpaceTiming.SetupTime = 0;
  AttSpaceTiming.WaitSetupTime = 1;
  AttSpaceTiming.HoldSetupTime = 1;
  AttSpaceTiming.HiZSetupTime = 0;

  if (HAL_NAND_Init(&hnand1, &ComSpaceTiming, &AttSpaceTiming) != HAL_OK)
  {
_Error_Handler(__FILE__, __LINE__);
  }

}

2万 · 2021-3-17 22:27

跟了一下FSMC_NAND_Init，相关配置记了下，一会对一下手册去
BCR2 = 0x000030D2
BTR2 = 0x0FFFFFFF
PCR2 = 0x0000000C
SR2 = 0x00000040
PMEM2 = 0xFFFFFFFF
PATT2 = 0x00010100

1万 · 2021-3-17 22:29

楼主想请教一个问题，现在使用nandflash 都不用使用ECC校验和坏块管理的的程序吗？新手不太明白

1万 · 2021-3-17 22:32

楼主怎么设置额

1万 · 2021-3-17 22:36

硬件怎么接的

2万 · 2021-3-17 22:41

我的挺正常的