求一个nor flash的程序驱动成功过的谢谢

金先生 · 发表于 2016-7-14 15:37:59

求一个nor flash的程序驱动成功过的谢谢什么芯片无所谓

xfcjava3 · 发表于 2016-7-14 15:38:00

STM32F1xx NOR Flash :  M29W128FL, M29W128GL and S29GL128P
/******************************************************************************
* File Name       : fsmc_nor.c
* Description       : This file provides a set of functions needed to drive the
*                         M29W128FL, M29W128GL and S29GL128P NOR memories
*******************************************************************************/

#include "fsmc_nor.h"

#define Bank1_NOR2_ADDR    ((uint32_t)0x64000000)

/* Delay definition */
#define BlockErase_Timeout ((uint32_t)0x00A00000)
#define ChipErase_Timeout    ((uint32_t)0x30000000)
#define Program_Timeout    ((uint32_t)0x00001400)

#define ADDR_SHIFT(A) (Bank1_NOR2_ADDR + (2 * (A)))
#define NOR_WRITE(Address, Data)  (*(__IO uint16_t *)(Address) = (Data))

/*******************************************************************************
* Function Name  : FSMC_NOR_Init
* Description : Configures the FSMC and GPIOs to interface with the NOR memory.
*                This function must be called before any write/read operation
*                on the NOR.
* Input       : None
* Output       : None
* Return       : None
*******************************************************************************/
void FSMC_NOR_Init(void)
{
  FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
  FSMC_NORSRAMTimingInitTypeDef  p;
  GPIO_InitTypeDef GPIO_InitStructure;

  /* Enable FSMC, GPIOD, GPIOE, GPIOF, GPIOG and AFIO clocks */
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);

  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE | RCC_APB2Periph_GPIOF |
                     RCC_APB2Periph_GPIOG | RCC_APB2Periph_AFIO , ENABLE);

  /*-- GPIO Configuration ----------------- -------------------------------------*/
  /* NOR Data lines configuration */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_8 | GPIO_Pin_9 |
                              GPIO_Pin_10 | GPIO_Pin_14 | GPIO_Pin_15;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOD, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 |
                              GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 |
                              GPIO_Pin_14 | GPIO_Pin_15;
  GPIO_Init(GPIOE, &GPIO_InitStructure);

  /* NOR Address lines configuration */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 |
                              GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_12 | GPIO_Pin_13 |
                              GPIO_Pin_14 | GPIO_Pin_15;
  GPIO_Init(GPIOF, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 |
                              GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5;
  GPIO_Init(GPIOG, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13;
  GPIO_Init(GPIOD, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6;
  GPIO_Init(GPIOE, &GPIO_InitStructure);

  /* NOE and NWE configuration */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;
  GPIO_Init(GPIOD, &GPIO_InitStructure);

  /* NE2 configuration */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  GPIO_Init(GPIOG, &GPIO_InitStructure);

  /*-- FSMC Configuration ----------------------------------------------------*/
  p.FSMC_AddressSetupTime = 0x02;
  p.FSMC_AddressHoldTime = 0x00;
  p.FSMC_DataSetupTime = 0x05;
  p.FSMC_BusTurnAroundDuration = 0x00;
  p.FSMC_CLKDivision = 0x00;
  p.FSMC_DataLatency = 0x00;
  p.FSMC_AccessMode = FSMC_AccessMode_B;

  FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
  FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
  FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_NOR;
  FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
  FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
  FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
  FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
  FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
  FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
  FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
  FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
  FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
  FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
  FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
  FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;

  FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);

  /* Enable FSMC Bank1_NOR Bank */
  FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM2, ENABLE);
}

/******************************************************************************
* Function Name  : FSMC_NOR_ReadID
* Description : Reads NOR memory's Manufacturer and Device Code.
* Input       : - NOR_ID: pointer to a NOR_IDTypeDef structure which will hold
*                   the Manufacturer and Device Code.
* Output       : None
* Return       : None
*******************************************************************************/
void FSMC_NOR_ReadID(NOR_IDTypeDef* NOR_ID)
{
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x0090);

  NOR_ID->Manufacturer_Code = *(__IO uint16_t *) ADDR_SHIFT(0x0000);
  NOR_ID->Device_Code1 = *(__IO uint16_t *) ADDR_SHIFT(0x0001);
  NOR_ID->Device_Code2 = *(__IO uint16_t *) ADDR_SHIFT(0x000E);
  NOR_ID->Device_Code3 = *(__IO uint16_t *) ADDR_SHIFT(0x000F);
}

/*******************************************************************************
* Function Name  : FSMC_NOR_EraseBlock
* Description : Erases the specified Nor memory block.
* Input       : - BlockAddr: address of the block to erase.
* Output       : None
* Return       : NOR_Status:The returned value can be: NOR_SUCCESS, NOR_ERROR
*                or NOR_TIMEOUT
*******************************************************************************/
NOR_Status FSMC_NOR_EraseBlock(uint32_t BlockAddr)
{
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x0080);
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
  NOR_WRITE((Bank1_NOR2_ADDR + BlockAddr), 0x30);

  return (FSMC_NOR_GetStatus(BlockErase_Timeout));
}

/*******************************************************************************
* Function Name  : FSMC_NOR_EraseChip
* Description : Erases the entire chip.
* Input       : None
* Output       : None
* Return       : NOR_Status:The returned value can be: NOR_SUCCESS, NOR_ERROR
*                or NOR_TIMEOUT
*******************************************************************************/
NOR_Status FSMC_NOR_EraseChip(void)
{
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x0080);
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
  NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
  NOR_WRITE(ADDR_SHIFT(0x0555), 0x0010);

  return (FSMC_NOR_GetStatus(ChipErase_Timeout));
}

具体的驱动程序见附件：

fsmc_nor.rar (3.45 KB, 下载次数: 105)