/**
******************************************************************************
* @file stm3210e_eval_fsmc_nor.c
* @author MCD Application Team
* @version V4.5.0
* @date 07-March-2011
* @brief This file provides a set of functions needed to drive the M29W128FL,
* M29W128GL and S29GL128P NOR memories mounted on STM3210E-EVAL board.
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
*
© COPYRIGHT 2011 STMicroelectronics
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm3210e_eval_fsmc_nor.h"
/** @addtogroup Utilities
* @{
*/
/** @addtogroup STM32_EVAL
* @{
*/
/** @addtogroup STM3210E_EVAL
* @{
*/
/** @addtogroup STM3210E_EVAL_FSMC_NOR
* @brief This file provides a set of functions needed to drive the M29W128FL,
* M29W128GL and S29GL128P NOR memories mounted on STM3210E-EVAL board.
* @{
*/
/** @defgroup STM3210E_EVAL_FSMC_NOR_Private_Types
* @{
*/
/**
* @}
*/
/** @defgroup STM3210E_EVAL_FSMC_NOR_Private_Defines
* @{
*/
/**
* @brief FSMC Bank 1 NOR/SRAM2
*/
#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)
/**
* @}
*/
/** @defgroup STM3210E_EVAL_FSMC_NOR_Private_Macros
* @{
*/
#define ADDR_SHIFT(A) (Bank1_NOR2_ADDR + (2 * (A)))
#define NOR_WRITE(Address, Data) (*(__IO uint16_t *)(Address) = (Data))
/**
* @}
*/
/** @defgroup STM3210E_EVAL_FSMC_NOR_Private_Variables
* @{
*/
/**
* @}
*/
/** @defgroupSTM3210E_EVAL_FSMC_NOR_Private_Function_Prototypes
* @{
*/
/**
* @}
*/
/** @defgroup STM3210E_EVAL_FSMC_NOR_Private_Functions
* @{
*/
/**
* @brief Configures the FSMC and GPIOs to interface with the NOR memory.
* This function must be called before any write/read operation
* on the NOR.
* @param None
* @retval None
*/
void NOR_Init(void)
{
FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef p;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE |
RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG, 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);
/*!< Configure PD6 for NOR memory Ready/Busy signal */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOD, &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_AsynchronousWait = FSMC_AsynchronousWait_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_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);
}
/**
* @brief Reads NOR memory's Manufacturer and Device Code.
* @param NOR_ID: pointer to a NOR_IDTypeDef structure which will hold the
* Manufacturer and Device Code.
* @retval None
*/
void 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);
}
/**
* @brief Erases the specified Nor memory block.
* @param BlockAddr: address of the block to erase.
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT
*/
NOR_Status 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 (NOR_GetStatus(BlockErase_Timeout));
}
/**
* @brief Erases the entire chip.
* @param None
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT
*/
NOR_Status 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 (NOR_GetStatus(ChipErase_Timeout));
}
/**
* @brief Writes a half-word to the NOR memory.
* @param WriteAddr: NOR memory internal address to write to.
* @param Data: Data to write.
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT
*/
NOR_Status NOR_WriteHalfWord(uint32_t WriteAddr, uint16_t Data)
{
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00A0);
NOR_WRITE((Bank1_NOR2_ADDR + WriteAddr), Data);
return (NOR_GetStatus(Program_Timeout));
}
/**
* @brief Writes a half-word buffer to the FSMC NOR memory.
* @param pBuffer: pointer to buffer.
* @param WriteAddr: NOR memory internal address from which the data will be
* written.
* @param NumHalfwordToWrite: number of Half words to write.
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT
*/
NOR_Status NOR_WriteBuffer(uint16_t* pBuffer, uint32_t WriteAddr, uint32_t NumHalfwordToWrite)
{
NOR_Status status = NOR_ONGOING;
do
{
/*!< Transfer data to the memory */
status = NOR_WriteHalfWord(WriteAddr, *pBuffer++);
WriteAddr = WriteAddr + 2;
NumHalfwordToWrite--;
}
while((status == NOR_SUCCESS) && (NumHalfwordToWrite != 0));
return (status);
}
/**
* @brief Writes a half-word buffer to the FSMC NOR memory. This function
* must be used only with S29GL128P NOR memory.
* @param pBuffer: pointer to buffer.
* @param WriteAddr: NOR memory internal address from which the data will be
* written.
* @param NumHalfwordToWrite: number of Half words to write.
* The maximum allowed value is 32 Half words (64 bytes).
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT
*/
NOR_Status NOR_ProgramBuffer(uint16_t* pBuffer, uint32_t WriteAddr, uint32_t NumHalfwordToWrite)
{
uint32_t lastloadedaddress = 0x00;
uint32_t currentaddress = 0x00;
uint32_t endaddress = 0x00;
/*!< Initialize variables */
currentaddress = WriteAddr;
endaddress = WriteAddr + NumHalfwordToWrite - 1;
lastloadedaddress = WriteAddr;
/*!< Issue unlock command sequence */
NOR_WRITE(ADDR_SHIFT(0x00555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
/*!< Write Write Buffer Load Command */
NOR_WRITE(ADDR_SHIFT(WriteAddr), 0x0025);
NOR_WRITE(ADDR_SHIFT(WriteAddr), (NumHalfwordToWrite - 1));
/*!< Load Data into NOR Buffer */
while(currentaddress <= endaddress)
{
/*!< Store last loaded address & data value (for polling) */
lastloadedaddress = currentaddress;
NOR_WRITE(ADDR_SHIFT(currentaddress), *pBuffer++);
currentaddress += 1;
}
NOR_WRITE(ADDR_SHIFT(lastloadedaddress), 0x29);
return(NOR_GetStatus(Program_Timeout));
}
/**
* @brief Reads a half-word from the NOR memory.
* @param ReadAddr: NOR memory internal address to read from.
* @retval Half-word read from the NOR memory
*/
uint16_t NOR_ReadHalfWord(uint32_t ReadAddr)
{
NOR_WRITE(ADDR_SHIFT(0x00555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x002AA), 0x0055);
NOR_WRITE((Bank1_NOR2_ADDR + ReadAddr), 0x00F0 );
return (*(__IO uint16_t *)((Bank1_NOR2_ADDR + ReadAddr)));
}
/**
* @brief Reads a block of data from the FSMC NOR memory.
* @param pBuffer: pointer to the buffer that receives the data read from the
* NOR memory.
* @param ReadAddr: NOR memory internal address to read from.
* @param NumHalfwordToRead : number of Half word to read.
* @retval None
*/
void NOR_ReadBuffer(uint16_t* pBuffer, uint32_t ReadAddr, uint32_t NumHalfwordToRead)
{
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE((Bank1_NOR2_ADDR + ReadAddr), 0x00F0);
for(; NumHalfwordToRead != 0x00; NumHalfwordToRead--) /*!< while there is data to read */
{
/*!< Read a Halfword from the NOR */
*pBuffer++ = *(__IO uint16_t *)((Bank1_NOR2_ADDR + ReadAddr));
ReadAddr = ReadAddr + 2;
}
}
/**
* @brief Returns the NOR memory to Read mode.
* @param None
* @retval NOR_SUCCESS
*/
NOR_Status NOR_ReturnToReadMode(void)
{
NOR_WRITE(Bank1_NOR2_ADDR, 0x00F0);
return (NOR_SUCCESS);
}
/**
* @brief Returns the NOR memory to Read mode and resets the errors in the NOR
* memory Status Register.
* @param None
* @retval NOR_SUCCESS
*/
NOR_Status NOR_Reset(void)
{
NOR_WRITE(ADDR_SHIFT(0x00555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x002AA), 0x0055);
NOR_WRITE(Bank1_NOR2_ADDR, 0x00F0);
return (NOR_SUCCESS);
}
/**
* @brief Returns the NOR operation status.
* @param Timeout: NOR progamming Timeout
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT
*/
NOR_Status NOR_GetStatus(uint32_t Timeout)
{
uint16_t val1 = 0x00, val2 = 0x00;
NOR_Status status = NOR_ONGOING;
uint32_t timeout = Timeout;
/*!< Poll on NOR memory Ready/Busy signal ----------------------------------*/
while((GPIO_ReadInputDataBit(GPIOD, GPIO_Pin_6) != RESET) && (timeout > 0))
{
timeout--;
}
timeout = Timeout;
while((GPIO_ReadInputDataBit(GPIOD, GPIO_Pin_6) == RESET) && (timeout > 0))
{
timeout--;
}
/*!< Get the NOR memory operation status -----------------------------------*/
while((Timeout != 0x00) && (status != NOR_SUCCESS))
{
Timeout--;
/*!< Read DQ6 and DQ5 */
val1 = *(__IO uint16_t *)(Bank1_NOR2_ADDR);
val2 = *(__IO uint16_t *)(Bank1_NOR2_ADDR);
/*!< If DQ6 did not toggle between the two reads then return NOR_Success */
if((val1 & 0x0040) == (val2 & 0x0040))
{
return NOR_SUCCESS;
}
if((val1 & 0x0020) != 0x0020)
{
status = NOR_ONGOING;
}
val1 = *(__IO uint16_t *)(Bank1_NOR2_ADDR);
val2 = *(__IO uint16_t *)(Bank1_NOR2_ADDR);
if((val1 & 0x0040) == (val2 & 0x0040))
{
return NOR_SUCCESS;
}
else if((val1 & 0x0020) == 0x0020)
{
return NOR_ERROR;
}
}
if(Timeout == 0x00)
{
status = NOR_TIMEOUT;
}
/*!< Return the operation status */
return (status);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/