📄 stm32f2xx_fsmc.c
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*/
/**
* @brief Deinitializes the FSMC NAND Banks registers to their default reset values.
* @param FSMC_Bank: specifies the FSMC Bank to be used
* This parameter can be one of the following values:
* @arg FSMC_Bank2_NAND: FSMC Bank2 NAND
* @arg FSMC_Bank3_NAND: FSMC Bank3 NAND
* @retval None
*/
void FSMC_NANDDeInit(uint32_t FSMC_Bank)
{
/* Check the parameter */
assert_param(IS_FSMC_NAND_BANK(FSMC_Bank));
if(FSMC_Bank == FSMC_Bank2_NAND)
{
/* Set the FSMC_Bank2 registers to their reset values */
FSMC_Bank2->PCR2 = 0x00000018;
FSMC_Bank2->SR2 = 0x00000040;
FSMC_Bank2->PMEM2 = 0xFCFCFCFC;
FSMC_Bank2->PATT2 = 0xFCFCFCFC;
}
/* FSMC_Bank3_NAND */
else
{
/* Set the FSMC_Bank3 registers to their reset values */
FSMC_Bank3->PCR3 = 0x00000018;
FSMC_Bank3->SR3 = 0x00000040;
FSMC_Bank3->PMEM3 = 0xFCFCFCFC;
FSMC_Bank3->PATT3 = 0xFCFCFCFC;
}
}
/**
* @brief Initializes the FSMC NAND Banks according to the specified parameters
* in the FSMC_NANDInitStruct.
* @param FSMC_NANDInitStruct : pointer to a FSMC_NANDInitTypeDef structure that
* contains the configuration information for the FSMC NAND specified Banks.
* @retval None
*/
void FSMC_NANDInit(FSMC_NANDInitTypeDef* FSMC_NANDInitStruct)
{
uint32_t tmppcr = 0x00000000, tmppmem = 0x00000000, tmppatt = 0x00000000;
/* Check the parameters */
assert_param( IS_FSMC_NAND_BANK(FSMC_NANDInitStruct->FSMC_Bank));
assert_param( IS_FSMC_WAIT_FEATURE(FSMC_NANDInitStruct->FSMC_Waitfeature));
assert_param( IS_FSMC_MEMORY_WIDTH(FSMC_NANDInitStruct->FSMC_MemoryDataWidth));
assert_param( IS_FSMC_ECC_STATE(FSMC_NANDInitStruct->FSMC_ECC));
assert_param( IS_FSMC_ECCPAGE_SIZE(FSMC_NANDInitStruct->FSMC_ECCPageSize));
assert_param( IS_FSMC_TCLR_TIME(FSMC_NANDInitStruct->FSMC_TCLRSetupTime));
assert_param( IS_FSMC_TAR_TIME(FSMC_NANDInitStruct->FSMC_TARSetupTime));
assert_param(IS_FSMC_SETUP_TIME(FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_SetupTime));
assert_param(IS_FSMC_WAIT_TIME(FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_WaitSetupTime));
assert_param(IS_FSMC_HOLD_TIME(FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_HoldSetupTime));
assert_param(IS_FSMC_HIZ_TIME(FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_HiZSetupTime));
assert_param(IS_FSMC_SETUP_TIME(FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_SetupTime));
assert_param(IS_FSMC_WAIT_TIME(FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_WaitSetupTime));
assert_param(IS_FSMC_HOLD_TIME(FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_HoldSetupTime));
assert_param(IS_FSMC_HIZ_TIME(FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_HiZSetupTime));
/* Set the tmppcr value according to FSMC_NANDInitStruct parameters */
tmppcr = (uint32_t)FSMC_NANDInitStruct->FSMC_Waitfeature |
PCR_MEMORYTYPE_NAND |
FSMC_NANDInitStruct->FSMC_MemoryDataWidth |
FSMC_NANDInitStruct->FSMC_ECC |
FSMC_NANDInitStruct->FSMC_ECCPageSize |
(FSMC_NANDInitStruct->FSMC_TCLRSetupTime << 9 )|
(FSMC_NANDInitStruct->FSMC_TARSetupTime << 13);
/* Set tmppmem value according to FSMC_CommonSpaceTimingStructure parameters */
tmppmem = (uint32_t)FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_SetupTime |
(FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_WaitSetupTime << 8) |
(FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_HoldSetupTime << 16)|
(FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_HiZSetupTime << 24);
/* Set tmppatt value according to FSMC_AttributeSpaceTimingStructure parameters */
tmppatt = (uint32_t)FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_SetupTime |
(FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_WaitSetupTime << 8) |
(FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_HoldSetupTime << 16)|
(FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_HiZSetupTime << 24);
if(FSMC_NANDInitStruct->FSMC_Bank == FSMC_Bank2_NAND)
{
/* FSMC_Bank2_NAND registers configuration */
FSMC_Bank2->PCR2 = tmppcr;
FSMC_Bank2->PMEM2 = tmppmem;
FSMC_Bank2->PATT2 = tmppatt;
}
else
{
/* FSMC_Bank3_NAND registers configuration */
FSMC_Bank3->PCR3 = tmppcr;
FSMC_Bank3->PMEM3 = tmppmem;
FSMC_Bank3->PATT3 = tmppatt;
}
}
/**
* @brief Fills each FSMC_NANDInitStruct member with its default value.
* @param FSMC_NANDInitStruct: pointer to a FSMC_NANDInitTypeDef structure which
* will be initialized.
* @retval None
*/
void FSMC_NANDStructInit(FSMC_NANDInitTypeDef* FSMC_NANDInitStruct)
{
/* Reset NAND Init structure parameters values */
FSMC_NANDInitStruct->FSMC_Bank = FSMC_Bank2_NAND;
FSMC_NANDInitStruct->FSMC_Waitfeature = FSMC_Waitfeature_Disable;
FSMC_NANDInitStruct->FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b;
FSMC_NANDInitStruct->FSMC_ECC = FSMC_ECC_Disable;
FSMC_NANDInitStruct->FSMC_ECCPageSize = FSMC_ECCPageSize_256Bytes;
FSMC_NANDInitStruct->FSMC_TCLRSetupTime = 0x0;
FSMC_NANDInitStruct->FSMC_TARSetupTime = 0x0;
FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_SetupTime = 0xFC;
FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_WaitSetupTime = 0xFC;
FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_HoldSetupTime = 0xFC;
FSMC_NANDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_HiZSetupTime = 0xFC;
FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_SetupTime = 0xFC;
FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_WaitSetupTime = 0xFC;
FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_HoldSetupTime = 0xFC;
FSMC_NANDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_HiZSetupTime = 0xFC;
}
/**
* @brief Enables or disables the specified NAND Memory Bank.
* @param FSMC_Bank: specifies the FSMC Bank to be used
* This parameter can be one of the following values:
* @arg FSMC_Bank2_NAND: FSMC Bank2 NAND
* @arg FSMC_Bank3_NAND: FSMC Bank3 NAND
* @param NewState: new state of the FSMC_Bank. This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void FSMC_NANDCmd(uint32_t FSMC_Bank, FunctionalState NewState)
{
assert_param(IS_FSMC_NAND_BANK(FSMC_Bank));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected NAND Bank by setting the PBKEN bit in the PCRx register */
if(FSMC_Bank == FSMC_Bank2_NAND)
{
FSMC_Bank2->PCR2 |= PCR_PBKEN_SET;
}
else
{
FSMC_Bank3->PCR3 |= PCR_PBKEN_SET;
}
}
else
{
/* Disable the selected NAND Bank by clearing the PBKEN bit in the PCRx register */
if(FSMC_Bank == FSMC_Bank2_NAND)
{
FSMC_Bank2->PCR2 &= PCR_PBKEN_RESET;
}
else
{
FSMC_Bank3->PCR3 &= PCR_PBKEN_RESET;
}
}
}
/**
* @brief Enables or disables the FSMC NAND ECC feature.
* @param FSMC_Bank: specifies the FSMC Bank to be used
* This parameter can be one of the following values:
* @arg FSMC_Bank2_NAND: FSMC Bank2 NAND
* @arg FSMC_Bank3_NAND: FSMC Bank3 NAND
* @param NewState: new state of the FSMC NAND ECC feature.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void FSMC_NANDECCCmd(uint32_t FSMC_Bank, FunctionalState NewState)
{
assert_param(IS_FSMC_NAND_BANK(FSMC_Bank));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected NAND Bank ECC function by setting the ECCEN bit in the PCRx register */
if(FSMC_Bank == FSMC_Bank2_NAND)
{
FSMC_Bank2->PCR2 |= PCR_ECCEN_SET;
}
else
{
FSMC_Bank3->PCR3 |= PCR_ECCEN_SET;
}
}
else
{
/* Disable the selected NAND Bank ECC function by clearing the ECCEN bit in the PCRx register */
if(FSMC_Bank == FSMC_Bank2_NAND)
{
FSMC_Bank2->PCR2 &= PCR_ECCEN_RESET;
}
else
{
FSMC_Bank3->PCR3 &= PCR_ECCEN_RESET;
}
}
}
/**
* @brief Returns the error correction code register value.
* @param FSMC_Bank: specifies the FSMC Bank to be used
* This parameter can be one of the following values:
* @arg FSMC_Bank2_NAND: FSMC Bank2 NAND
* @arg FSMC_Bank3_NAND: FSMC Bank3 NAND
* @retval The Error Correction Code (ECC) value.
*/
uint32_t FSMC_GetECC(uint32_t FSMC_Bank)
{
uint32_t eccval = 0x00000000;
if(FSMC_Bank == FSMC_Bank2_NAND)
{
/* Get the ECCR2 register value */
eccval = FSMC_Bank2->ECCR2;
}
else
{
/* Get the ECCR3 register value */
eccval = FSMC_Bank3->ECCR3;
}
/* Return the error correction code value */
return(eccval);
}
/**
* @}
*/
/** @defgroup FSMC_Group3 PCCARD Controller functions
* @brief PCCARD Controller functions
*
@verbatim
===============================================================================
PCCARD Controller functions
===============================================================================
The following sequence should be followed to configure the FSMC to interface with
16-bit PC Card compatible memory connected to the PCCARD Bank:
1. Enable the clock for the FSMC and associated GPIOs using the following functions:
RCC_AHB3PeriphClockCmd(RCC_AHB3Periph_FSMC, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOx, ENABLE);
2. FSMC pins configuration
- Connect the involved FSMC pins to AF12 using the following function
GPIO_PinAFConfig(GPIOx, GPIO_PinSourcex, GPIO_AF_FSMC);
- Configure these FSMC pins in alternate function mode by calling the function
GPIO_Init();
3. Declare a FSMC_PCCARDInitTypeDef structure, for example:
FSMC_PCCARDInitTypeDef FSMC_PCCARDInitStructure;
and fill the FSMC_PCCARDInitStructure variable with the allowed values of
the structure member.
4. Initialize the PCCARD Controller by calling the function
FSMC_PCCARDInit(&FSMC_PCCARDInitStructure);
5. Then enable the PCCARD Bank:
FSMC_PCCARDCmd(ENABLE);
6. At this stage you can read/write from/to the memory connected to the PCCARD Bank.
@endverbatim
* @{
*/
/**
* @brief Deinitializes the FSMC PCCARD Bank registers to their default reset values.
* @param None
* @retval None
*/
void FSMC_PCCARDDeInit(void)
{
/* Set the FSMC_Bank4 registers to their reset values */
FSMC_Bank4->PCR4 = 0x00000018;
FSMC_Bank4->SR4 = 0x00000000;
FSMC_Bank4->PMEM4 = 0xFCFCFCFC;
FSMC_Bank4->PATT4 = 0xFCFCFCFC;
FSMC_Bank4->PIO4 = 0xFCFCFCFC;
}
/**
* @brief Initializes the FSMC PCCARD Bank according to the specified parameters
* in the FSMC_PCCARDInitStruct.
* @param FSMC_PCCARDInitStruct : pointer to a FSMC_PCCARDInitTypeDef structure
* that contains the configuration information for the FSMC PCCARD Bank.
* @retval None
*/
void FSMC_PCCARDInit(FSMC_PCCARDInitTypeDef* FSMC_PCCARDInitStruct)
{
/* Check the parameters */
assert_param(IS_FSMC_WAIT_FEATURE(FSMC_PCCARDInitStruct->FSMC_Waitfeature));
assert_param(IS_FSMC_TCLR_TIME(FSMC_PCCARDInitStruct->FSMC_TCLRSetupTime));
assert_param(IS_FSMC_TAR_TIME(FSMC_PCCARDInitStruct->FSMC_TARSetupTime));
assert_param(IS_FSMC_SETUP_TIME(FSMC_PCCARDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_SetupTime));
assert_param(IS_FSMC_WAIT_TIME(FSMC_PCCARDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_WaitSetupTime));
assert_param(IS_FSMC_HOLD_TIME(FSMC_PCCARDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_HoldSetupTime));
assert_param(IS_FSMC_HIZ_TIME(FSMC_PCCARDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_HiZSetupTime));
assert_param(IS_FSMC_SETUP_TIME(FSMC_PCCARDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_SetupTime));
assert_param(IS_FSMC_WAIT_TIME(FSMC_PCCARDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_WaitSetupTime));
assert_param(IS_FSMC_HOLD_TIME(FSMC_PCCARDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_HoldSetupTime));
assert_param(IS_FSMC_HIZ_TIME(FSMC_PCCARDInitStruct->FSMC_AttributeSpaceTimingStruct->FSMC_HiZSetupTime));
assert_param(IS_FSMC_SETUP_TIME(FSMC_PCCARDInitStruct->FSMC_IOSpaceTimingStruct->FSMC_SetupTime));
assert_param(IS_FSMC_WAIT_TIME(FSMC_PCCARDInitStruct->FSMC_IOSpaceTimingStruct->FSMC_WaitSetupTime));
assert_param(IS_FSMC_HOLD_TIME(FSMC_PCCARDInitStruct->FSMC_IOSpaceTimingStruct->FSMC_HoldSetupTime));
assert_param(IS_FSMC_HIZ_TIME(FSMC_PCCARDInitStruct->FSMC_IOSpaceTimingStruct->FSMC_HiZSetupTime));
/* Set the PCR4 register value according to FSMC_PCCARDInitStruct parameters */
FSMC_Bank4->PCR4 = (uint32_t)FSMC_PCCARDInitStruct->FSMC_Waitfeature |
FSMC_MemoryDataWidth_16b |
(FSMC_PCCARDInitStruct->FSMC_TCLRSetupTime << 9) |
(FSMC_PCCARDInitStruct->FSMC_TARSetupTime << 13);
/* Set PMEM4 register value according to FSMC_CommonSpaceTimingStructure parameters */
FSMC_Bank4->PMEM4 = (uint32_t)FSMC_PCCARDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_SetupTime |
(FSMC_PCCARDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_WaitSetupTime << 8) |
(FSMC_PCCARDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_HoldSetupTime << 16)|
(FSMC_PCCARDInitStruct->FSMC_CommonSpaceTimingStruct->FSMC_HiZSetupTime << 24);
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