SDRAM_DISCO_F746NG_BlockDevice
Dependents: DISCO-F746NG_SDRAMBlockDevice
Fork of SDRAM_DISCO_F746NG by
SDRAM_DISCO_F746NG_BlockDevice.h
- Committer:
- tapiov
- Date:
- 2018-03-08
- Revision:
- 1:36b940e6b8d2
File content as of revision 1:36b940e6b8d2:
/* Copyright (c) 2010-2016 mbed.org, MIT License * * Permission is hereby granted, free of charge, to any person obtaining a copy of this software * and associated documentation files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef __SDRAM_DISCO_F746NG_H #define __SDRAM_DISCO_F746NG_H #ifdef TARGET_DISCO_F746NG #include "mbed.h" #include "stm32746g_discovery_sdram.h" #include "BlockDevice.h" /* This class drives the SDRAM driver (MT48LC4M32B2B5-7) present on DISCO_F746NG board. Usage: #include "mbed.h" #include "SDRAM_DISCO_F746NG.h" int main() { sdram.WriteData(SDRAM_DEVICE_ADDR + WRITE_READ_ADDR, WriteBuffer, BUFFER_SIZE); SDRAMCommandStructure.CommandMode = FMC_SDRAM_CMD_SELFREFRESH_MODE; SDRAMCommandStructure.CommandTarget = FMC_SDRAM_CMD_TARGET_BANK2; SDRAMCommandStructure.AutoRefreshNumber = 1; SDRAMCommandStructure.ModeRegisterDefinition = 0; sdram.Sendcmd(&SDRAMCommandStructure); SDRAMCommandStructure.CommandMode = FMC_SDRAM_CMD_NORMAL_MODE; sdram.Sendcmd(&SDRAMCommandStructure); sdram.ReadData(SDRAM_DEVICE_ADDR + WRITE_READ_ADDR, ReadBuffer, BUFFER_SIZE); CompareBuffer(WriteBuffer, ReadBuffer, BUFFER_SIZE); while(1) { } } */ class SDRAM_DISCO_F746NG_BlockDevice : public BlockDevice { public: //! Constructor //SDRAM_DISCO_F746NG_BlockDevice(); //! Destructor //~SDRAM_DISCO_F746NG_BlockDevice(); /** * @brief Initializes the SDRAM device. * @retval SDRAM status */ virtual int init(); //virtual uint8_t Init(void); /** * @brief DeInitializes the SDRAM device. * @retval SDRAM status */ virtual int deinit(); //virtual uint8_t DeInit(void); /** * @brief Programs the SDRAM device. * @param RefreshCount: SDRAM refresh counter value * @retval None */ void Initialization_sequence(uint32_t RefreshCount); /** * @brief Reads an amount of data from the SDRAM memory in polling mode. * @param uwStartAddress: Read start address * @param pData: Pointer to data to be read * @param uwDataSize: Size of read data from the memory * @retval SDRAM status */ virtual int read(void *buffer, bd_addr_t addr, bd_size_t size); //uint8_t ReadData(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize); /** * @brief Reads an amount of data from the SDRAM memory in DMA mode. * @param uwStartAddress: Read start address * @param pData: Pointer to data to be read * @param uwDataSize: Size of read data from the memory * @retval SDRAM status */ uint8_t ReadData_DMA(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize); /** * @brief Writes an amount of data to the SDRAM memory in polling mode. * @param uwStartAddress: Write start address * @param pData: Pointer to data to be written * @param uwDataSize: Size of written data from the memory * @retval SDRAM status */ virtual int program(const void *buffer, bd_addr_t addr, bd_size_t size); //uint8_t WriteData(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize); /** * @brief Writes an amount of data to the SDRAM memory in DMA mode. * @param uwStartAddress: Write start address * @param pData: Pointer to data to be written * @param uwDataSize: Size of written data from the memory * @retval SDRAM status */ uint8_t WriteData_DMA(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize); /** * @brief Sends command to the SDRAM bank. * @param SdramCmd: Pointer to SDRAM command structure * @retval SDRAM status */ uint8_t Sendcmd(FMC_SDRAM_CommandTypeDef *SdramCmd); virtual int erase(bd_addr_t addr, bd_size_t size); virtual bd_size_t get_read_size() const; virtual bd_size_t get_program_size() const; virtual bd_size_t get_erase_size() const; virtual bd_size_t size() const; private: }; #else #error "This class must be used with DISCO_F746NG board only." #endif // TARGET_DISCO_F746NG #endif