/** | |
****************************************************************************** | |
* @file stm32l1xx_ll_fsmc.c | |
* @author MCD Application Team | |
* @brief FSMC Low Layer HAL module driver. | |
* | |
* This file provides firmware functions to manage the following | |
* functionalities of the Flexible Static Memory Controller (FSMC) peripheral memories: | |
* + Initialization/de-initialization functions | |
* + Peripheral Control functions | |
* + Peripheral State functions | |
* | |
@verbatim | |
============================================================================= | |
##### FSMC peripheral features ##### | |
============================================================================= | |
[..] The Flexible static memory controller (FSMC) includes following memory controllers: | |
(+) The NOR/PSRAM memory controller | |
[..] The FSMC functional block makes the interface with synchronous and asynchronous static | |
memories. Its main purposes are: | |
(+) to translate AHB transactions into the appropriate external device protocol. | |
(+) to meet the access time requirements of the external memory devices. | |
[..] All external memories share the addresses, data and control signals with the controller. | |
Each external device is accessed by means of a unique Chip Select. The FSMC performs | |
only one access at a time to an external device. | |
The main features of the FSMC controller are the following: | |
(+) Interface with static-memory mapped devices including: | |
(++) Static random access memory (SRAM). | |
(++) NOR Flash memory. | |
(++) PSRAM (4 memory banks). | |
(+) Independent Chip Select control for each memory bank | |
(+) Independent configuration for each memory bank | |
@endverbatim | |
****************************************************************************** | |
* @attention | |
* | |
* <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> | |
* | |
* Redistribution and use in source and binary forms, with or without modification, | |
* are permitted provided that the following conditions are met: | |
* 1. Redistributions of source code must retain the above copyright notice, | |
* this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright notice, | |
* this list of conditions and the following disclaimer in the documentation | |
* and/or other materials provided with the distribution. | |
* 3. Neither the name of STMicroelectronics nor the names of its contributors | |
* may be used to endorse or promote products derived from this software | |
* without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
* | |
****************************************************************************** | |
*/ | |
/* Includes ------------------------------------------------------------------*/ | |
#include "stm32l1xx_hal.h" | |
/** @addtogroup STM32L1xx_HAL_Driver | |
* @{ | |
*/ | |
#if defined(FSMC_BANK1) | |
#if defined(HAL_SRAM_MODULE_ENABLED) || defined(HAL_NOR_MODULE_ENABLED) | |
/** @defgroup FSMC_LL FSMC Low Layer | |
* @brief FSMC driver modules | |
* @{ | |
*/ | |
/* Private typedef -----------------------------------------------------------*/ | |
/* Private define ------------------------------------------------------------*/ | |
/** @defgroup FSMC_LL_Private_Constants FSMC Low Layer Private Constants | |
* @{ | |
*/ | |
/* ----------------------- FSMC registers bit mask --------------------------- */ | |
/* --- BCR Register ---*/ | |
/* BCR register clear mask */ | |
#define BCR_CLEAR_MASK ((uint32_t)(FSMC_BCRx_FACCEN | FSMC_BCRx_MUXEN | \ | |
FSMC_BCRx_MTYP | FSMC_BCRx_MWID | \ | |
FSMC_BCRx_BURSTEN | FSMC_BCRx_WAITPOL | \ | |
FSMC_BCRx_WRAPMOD | FSMC_BCRx_WAITCFG | \ | |
FSMC_BCRx_WREN | FSMC_BCRx_WAITEN | \ | |
FSMC_BCRx_EXTMOD | FSMC_BCRx_ASYNCWAIT | \ | |
FSMC_BCRx_CBURSTRW)) | |
/* --- BTR Register ---*/ | |
/* BTR register clear mask */ | |
#define BTR_CLEAR_MASK ((uint32_t)(FSMC_BTRx_ADDSET | FSMC_BTRx_ADDHLD |\ | |
FSMC_BTRx_DATAST | FSMC_BTRx_BUSTURN |\ | |
FSMC_BTRx_CLKDIV | FSMC_BTRx_DATLAT |\ | |
FSMC_BTRx_ACCMOD)) | |
/* --- BWTR Register ---*/ | |
/* BWTR register clear mask */ | |
#define BWTR_CLEAR_MASK ((uint32_t)(FSMC_BWTRx_ADDSET | FSMC_BWTRx_ADDHLD | \ | |
FSMC_BWTRx_DATAST | FSMC_BWTRx_ACCMOD | \ | |
FSMC_BWTRx_BUSTURN)) | |
/** | |
* @} | |
*/ | |
/* Private macro -------------------------------------------------------------*/ | |
/** @defgroup FSMC_LL_Private_Macros FSMC Low Layer Private Macros | |
* @{ | |
*/ | |
/** | |
* @} | |
*/ | |
/* Private variables ---------------------------------------------------------*/ | |
/* Private function prototypes -----------------------------------------------*/ | |
/* Exported functions --------------------------------------------------------*/ | |
/** @defgroup FSMC_LL_Exported_Functions FSMC Low Layer Exported Functions | |
* @{ | |
*/ | |
/** @defgroup FSMC_NORSRAM FSMC NORSRAM Controller functions | |
* @brief NORSRAM Controller functions | |
* | |
@verbatim | |
============================================================================== | |
##### How to use NORSRAM device driver ##### | |
============================================================================== | |
[..] | |
This driver contains a set of APIs to interface with the FSMC NORSRAM banks in order | |
to run the NORSRAM external devices. | |
(+) FSMC NORSRAM bank reset using the function FSMC_NORSRAM_DeInit() | |
(+) FSMC NORSRAM bank control configuration using the function FSMC_NORSRAM_Init() | |
(+) FSMC NORSRAM bank timing configuration using the function FSMC_NORSRAM_Timing_Init() | |
(+) FSMC NORSRAM bank extended timing configuration using the function | |
FSMC_NORSRAM_Extended_Timing_Init() | |
(+) FSMC NORSRAM bank enable/disable write operation using the functions | |
FSMC_NORSRAM_WriteOperation_Enable()/FSMC_NORSRAM_WriteOperation_Disable() | |
@endverbatim | |
* @{ | |
*/ | |
/** @defgroup FSMC_NORSRAM_Group1 Initialization/de-initialization functions | |
* @brief Initialization and Configuration functions | |
* | |
@verbatim | |
============================================================================== | |
##### Initialization and de_initialization functions ##### | |
============================================================================== | |
[..] | |
This section provides functions allowing to: | |
(+) Initialize and configure the FSMC NORSRAM interface | |
(+) De-initialize the FSMC NORSRAM interface | |
(+) Configure the FSMC clock and associated GPIOs | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Initialize the FSMC_NORSRAM device according to the specified | |
* control parameters in the FSMC_NORSRAM_InitTypeDef | |
* @param Device Pointer to NORSRAM device instance | |
* @param Init Pointer to NORSRAM Initialization structure | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef FSMC_NORSRAM_Init(FSMC_NORSRAM_TypeDef *Device, FSMC_NORSRAM_InitTypeDef *Init) | |
{ | |
/* Check the parameters */ | |
assert_param(IS_FSMC_NORSRAM_DEVICE(Device)); | |
assert_param(IS_FSMC_NORSRAM_BANK(Init->NSBank)); | |
assert_param(IS_FSMC_MUX(Init->DataAddressMux)); | |
assert_param(IS_FSMC_MEMORY(Init->MemoryType)); | |
assert_param(IS_FSMC_NORSRAM_MEMORY_WIDTH(Init->MemoryDataWidth)); | |
assert_param(IS_FSMC_BURSTMODE(Init->BurstAccessMode)); | |
assert_param(IS_FSMC_WAIT_POLARITY(Init->WaitSignalPolarity)); | |
assert_param(IS_FSMC_WRAP_MODE(Init->WrapMode)); | |
assert_param(IS_FSMC_WAIT_SIGNAL_ACTIVE(Init->WaitSignalActive)); | |
assert_param(IS_FSMC_WRITE_OPERATION(Init->WriteOperation)); | |
assert_param(IS_FSMC_WAITE_SIGNAL(Init->WaitSignal)); | |
assert_param(IS_FSMC_EXTENDED_MODE(Init->ExtendedMode)); | |
assert_param(IS_FSMC_ASYNWAIT(Init->AsynchronousWait)); | |
assert_param(IS_FSMC_WRITE_BURST(Init->WriteBurst)); | |
/* Disable NORSRAM Device */ | |
__FSMC_NORSRAM_DISABLE(Device, Init->NSBank); | |
/* Set NORSRAM device control parameters */ | |
if (Init->MemoryType == FSMC_MEMORY_TYPE_NOR) | |
{ | |
MODIFY_REG(Device->BTCR[Init->NSBank], BCR_CLEAR_MASK, (uint32_t)(FSMC_NORSRAM_FLASH_ACCESS_ENABLE | |
| Init->DataAddressMux | |
| Init->MemoryType | |
| Init->MemoryDataWidth | |
| Init->BurstAccessMode | |
| Init->WaitSignalPolarity | |
| Init->WrapMode | |
| Init->WaitSignalActive | |
| Init->WriteOperation | |
| Init->WaitSignal | |
| Init->ExtendedMode | |
| Init->AsynchronousWait | |
| Init->WriteBurst | |
) | |
); | |
} | |
else | |
{ | |
MODIFY_REG(Device->BTCR[Init->NSBank], BCR_CLEAR_MASK, (uint32_t)(FSMC_NORSRAM_FLASH_ACCESS_DISABLE | |
| Init->DataAddressMux | |
| Init->MemoryType | |
| Init->MemoryDataWidth | |
| Init->BurstAccessMode | |
| Init->WaitSignalPolarity | |
| Init->WrapMode | |
| Init->WaitSignalActive | |
| Init->WriteOperation | |
| Init->WaitSignal | |
| Init->ExtendedMode | |
| Init->AsynchronousWait | |
| Init->WriteBurst | |
) | |
); | |
} | |
return HAL_OK; | |
} | |
/** | |
* @brief DeInitialize the FSMC_NORSRAM peripheral | |
* @param Device Pointer to NORSRAM device instance | |
* @param ExDevice Pointer to NORSRAM extended mode device instance | |
* @param Bank NORSRAM bank number | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef FSMC_NORSRAM_DeInit(FSMC_NORSRAM_TypeDef *Device, FSMC_NORSRAM_EXTENDED_TypeDef *ExDevice, uint32_t Bank) | |
{ | |
/* Check the parameters */ | |
assert_param(IS_FSMC_NORSRAM_DEVICE(Device)); | |
assert_param(IS_FSMC_NORSRAM_EXTENDED_DEVICE(ExDevice)); | |
assert_param(IS_FSMC_NORSRAM_BANK(Bank)); | |
/* Disable the FSMC_NORSRAM device */ | |
__FSMC_NORSRAM_DISABLE(Device, Bank); | |
/* De-initialize the FSMC_NORSRAM device */ | |
/* FSMC_NORSRAM_BANK1 */ | |
if (Bank == FSMC_NORSRAM_BANK1) | |
{ | |
Device->BTCR[Bank] = 0x000030DB; | |
} | |
/* FSMC_NORSRAM_BANK2, FSMC_NORSRAM_BANK3 or FSMC_NORSRAM_BANK4 */ | |
else | |
{ | |
Device->BTCR[Bank] = 0x000030D2; | |
} | |
Device->BTCR[Bank + 1] = 0x0FFFFFFF; | |
ExDevice->BWTR[Bank] = 0x0FFFFFFF; | |
return HAL_OK; | |
} | |
/** | |
* @brief Initialize the FSMC_NORSRAM Timing according to the specified | |
* parameters in the FSMC_NORSRAM_TimingTypeDef | |
* @param Device Pointer to NORSRAM device instance | |
* @param Timing Pointer to NORSRAM Timing structure | |
* @param Bank NORSRAM bank number | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef FSMC_NORSRAM_Timing_Init(FSMC_NORSRAM_TypeDef *Device, FSMC_NORSRAM_TimingTypeDef *Timing, uint32_t Bank) | |
{ | |
/* Check the parameters */ | |
assert_param(IS_FSMC_NORSRAM_DEVICE(Device)); | |
assert_param(IS_FSMC_ADDRESS_SETUP_TIME(Timing->AddressSetupTime)); | |
assert_param(IS_FSMC_ADDRESS_HOLD_TIME(Timing->AddressHoldTime)); | |
assert_param(IS_FSMC_DATASETUP_TIME(Timing->DataSetupTime)); | |
assert_param(IS_FSMC_TURNAROUND_TIME(Timing->BusTurnAroundDuration)); | |
assert_param(IS_FSMC_CLK_DIV(Timing->CLKDivision)); | |
assert_param(IS_FSMC_DATA_LATENCY(Timing->DataLatency)); | |
assert_param(IS_FSMC_ACCESS_MODE(Timing->AccessMode)); | |
assert_param(IS_FSMC_NORSRAM_BANK(Bank)); | |
/* Set FSMC_NORSRAM device timing parameters */ | |
MODIFY_REG(Device->BTCR[Bank + 1], \ | |
BTR_CLEAR_MASK, \ | |
(uint32_t)(Timing->AddressSetupTime | \ | |
((Timing->AddressHoldTime) << POSITION_VAL(FSMC_BTRx_ADDHLD)) | \ | |
((Timing->DataSetupTime) << POSITION_VAL(FSMC_BTRx_DATAST)) | \ | |
((Timing->BusTurnAroundDuration) << POSITION_VAL(FSMC_BTRx_BUSTURN)) | \ | |
(((Timing->CLKDivision) - 1) << POSITION_VAL(FSMC_BTRx_CLKDIV)) | \ | |
(((Timing->DataLatency) - 2) << POSITION_VAL(FSMC_BTRx_DATLAT)) | \ | |
(Timing->AccessMode))); | |
return HAL_OK; | |
} | |
/** | |
* @brief Initialize the FSMC_NORSRAM Extended mode Timing according to the specified | |
* parameters in the FSMC_NORSRAM_TimingTypeDef | |
* @param Device Pointer to NORSRAM device instance | |
* @param Timing Pointer to NORSRAM Timing structure | |
* @param Bank NORSRAM bank number | |
* @param ExtendedMode FSMC Extended Mode | |
* This parameter can be one of the following values: | |
* @arg FSMC_EXTENDED_MODE_DISABLE | |
* @arg FSMC_EXTENDED_MODE_ENABLE | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef FSMC_NORSRAM_Extended_Timing_Init(FSMC_NORSRAM_EXTENDED_TypeDef *Device, FSMC_NORSRAM_TimingTypeDef *Timing, uint32_t Bank, uint32_t ExtendedMode) | |
{ | |
/* Check the parameters */ | |
assert_param(IS_FSMC_EXTENDED_MODE(ExtendedMode)); | |
/* Set NORSRAM device timing register for write configuration, if extended mode is used */ | |
if (ExtendedMode == FSMC_EXTENDED_MODE_ENABLE) | |
{ | |
/* Check the parameters */ | |
assert_param(IS_FSMC_NORSRAM_EXTENDED_DEVICE(Device)); | |
assert_param(IS_FSMC_ADDRESS_SETUP_TIME(Timing->AddressSetupTime)); | |
assert_param(IS_FSMC_ADDRESS_HOLD_TIME(Timing->AddressHoldTime)); | |
assert_param(IS_FSMC_DATASETUP_TIME(Timing->DataSetupTime)); | |
assert_param(IS_FSMC_TURNAROUND_TIME(Timing->BusTurnAroundDuration)); | |
assert_param(IS_FSMC_ACCESS_MODE(Timing->AccessMode)); | |
assert_param(IS_FSMC_NORSRAM_BANK(Bank)); | |
/* Set NORSRAM device timing register for write configuration, if extended mode is used */ | |
MODIFY_REG(Device->BWTR[Bank], \ | |
BWTR_CLEAR_MASK, \ | |
(uint32_t)(Timing->AddressSetupTime | \ | |
((Timing->AddressHoldTime) << POSITION_VAL(FSMC_BWTRx_ADDHLD)) | \ | |
((Timing->DataSetupTime) << POSITION_VAL(FSMC_BWTRx_DATAST)) | \ | |
Timing->AccessMode | \ | |
((Timing->BusTurnAroundDuration) << POSITION_VAL(FSMC_BWTRx_BUSTURN)))); | |
} | |
else | |
{ | |
Device->BWTR[Bank] = 0x0FFFFFFF; | |
} | |
return HAL_OK; | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup FSMC_NORSRAM_Group2 Control functions | |
* @brief management functions | |
* | |
@verbatim | |
============================================================================== | |
##### FSMC_NORSRAM Control functions ##### | |
============================================================================== | |
[..] | |
This subsection provides a set of functions allowing to control dynamically | |
the FSMC NORSRAM interface. | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Enables dynamically FSMC_NORSRAM write operation. | |
* @param Device Pointer to NORSRAM device instance | |
* @param Bank NORSRAM bank number | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef FSMC_NORSRAM_WriteOperation_Enable(FSMC_NORSRAM_TypeDef *Device, uint32_t Bank) | |
{ | |
/* Check the parameters */ | |
assert_param(IS_FSMC_NORSRAM_DEVICE(Device)); | |
assert_param(IS_FSMC_NORSRAM_BANK(Bank)); | |
/* Enable write operation */ | |
SET_BIT(Device->BTCR[Bank], FSMC_WRITE_OPERATION_ENABLE); | |
return HAL_OK; | |
} | |
/** | |
* @brief Disables dynamically FSMC_NORSRAM write operation. | |
* @param Device Pointer to NORSRAM device instance | |
* @param Bank NORSRAM bank number | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef FSMC_NORSRAM_WriteOperation_Disable(FSMC_NORSRAM_TypeDef *Device, uint32_t Bank) | |
{ | |
/* Check the parameters */ | |
assert_param(IS_FSMC_NORSRAM_DEVICE(Device)); | |
assert_param(IS_FSMC_NORSRAM_BANK(Bank)); | |
/* Disable write operation */ | |
CLEAR_BIT(Device->BTCR[Bank], FSMC_WRITE_OPERATION_ENABLE); | |
return HAL_OK; | |
} | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
#endif /* defined(HAL_SRAM_MODULE_ENABLED) || defined(HAL_NOR_MODULE_ENABLED) */ | |
#endif /* FSMC_BANK1 */ | |
/** | |
* @} | |
*/ | |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |