fsmc 库函数

hooddas

开始使用原子的寄存器板程序进行调试，现在想用上nand flash 看了一下觉得库函数版本的程序比较方便些，就想在寄存器原来的程序里面添加fsmc库函数版程序，现在添加了core_cm3.c，system_stm32f10x.c，以及fsmc相关的库函数文件，程序编译也没有报错，可是读不了flash的ID（k9f2g08）,返回的值都是0，不知道是我的移植有问题还是哪出的问题，第一次弄库函数，还是寄存器和库函数混搭，不好知道具体错在哪里，下面贴出读ID相关的程序，高手们给点思路

/* Exported types ------------------------------------------------------------*/

typedef struct

{

  u8 Maker_ID;

  u8 Device_ID;

  u8 Third_ID;

  u8 Fourth_ID;

}NAND_IDTypeDef;
-------------------------------------------------------------------------------------

void FSMC_NAND_ReadID(NAND_IDTypeDef* NAND_ID)

{

  u32 data = 0;

  /* Send Command to the command area */

  *(vu8 *)(Bank_NAND_ADDR | CMD_AREA) = 0x90;

  *(vu8 *)(Bank_NAND_ADDR | ADDR_AREA) = 0x00;

   /* Sequence to read ID from NAND flash */

   data = *(vu32 *)(Bank_NAND_ADDR | DATA_AREA);

   NAND_ID->Maker_ID   = ADDR_1st_CYCLE (data);

   NAND_ID->Device_ID  = ADDR_2nd_CYCLE (data);

   NAND_ID->Third_ID   = ADDR_3rd_CYCLE (data);

   NAND_ID->Fourth_ID  = ADDR_4th_CYCLE (data); 

}
-----------------------------------------------------------------------------------

NAND_IDTypeDef NAND_ID;

int main(void)

{

FSMC_NAND_Init();//初始化FSMC功能

FSMC_NAND_Reset();//k9f2g08复位

while(1)

{

FSMC_NAND_ReadID(&NAND_ID);
        }
}
----------------------------------------------------------------------

void FSMC_NAND_Init(void)

{

  GPIO_InitTypeDef GPIO_InitStructure; 

  FSMC_NANDInitTypeDef FSMC_NANDInitStructure;

  FSMC_NAND_PCCARDTimingInitTypeDef  p;

  

  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE | 

                         RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG, ENABLE);

  

/*-- GPIO Configuration ------------------------------------------------------*/

/* CLE, ALE, D0->D3, NOE, NWE and NCE2  NAND pin configuration  */

  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); 

/* D4->D7 NAND pin configuration  */  

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;

  GPIO_Init(GPIOE, &GPIO_InitStructure);

/* NWAIT NAND pin configuration */

  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); 

/* INT2 NAND pin configuration */  

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;    

  GPIO_Init(GPIOG, &GPIO_InitStructure);

  /*-- FSMC Configuration ------------------------------------------------------*/

  p.FSMC_SetupTime = 0x1;

  p.FSMC_WaitSetupTime = 0x3;

  p.FSMC_HoldSetupTime = 0x2;

  p.FSMC_HiZSetupTime = 0x1;

  FSMC_NANDInitStructure.FSMC_Bank = FSMC_Bank2_NAND;

  FSMC_NANDInitStructure.FSMC_Waitfeature = FSMC_Waitfeature_Enable;

  FSMC_NANDInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b;

  FSMC_NANDInitStructure.FSMC_ECC = FSMC_ECC_Enable;

  FSMC_NANDInitStructure.FSMC_ECCPageSize = FSMC_ECCPageSize_512Bytes;

  FSMC_NANDInitStructure.FSMC_AddressLowMapping = FSMC_AddressLowMapping_Direct;

  FSMC_NANDInitStructure.FSMC_TCLRSetupTime = 0x00;

  FSMC_NANDInitStructure.FSMC_TARSetupTime = 0x00;

  FSMC_NANDInitStructure.FSMC_CommonSpaceTimingStruct = &p;

  FSMC_NANDInitStructure.FSMC_AttributeSpaceTimingStruct = &p;

  FSMC_NANDInit(&FSMC_NANDInitStructure);

  /* FSMC NAND Bank Cmd Test */

  FSMC_NANDCmd(FSMC_Bank2_NAND, ENABLE);

}

正点原子

没用FSMC驱动过FLASH.帮不到你了,自己找找资料看看吧.

hooddas

好吧我再研究研究

pcf_8591

回复【2楼】正点原子:
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老大，有没有FSMC的库函数文档，谢谢。