SDRAM class for DISCO_F746NG
Dependents: ARMmbedFMsinth DISCO-F746NG_AUDIO_demo3 DISCO-F746NG_Monttory_Base DISCO-F746NG_Monttory_Base ... more
Deprecated lib
Diff: SDRAM_DISCO_F746NG.h
- Revision:
- 0:370f402a2219
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDRAM_DISCO_F746NG.h Mon Mar 21 12:16:24 2016 +0000 @@ -0,0 +1,134 @@ +/* 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" + +/* + 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 +{ + +public: + //! Constructor + SDRAM_DISCO_F746NG(); + + //! Destructor + ~SDRAM_DISCO_F746NG(); + + + /** + * @brief Initializes the SDRAM device. + * @retval SDRAM status + */ + uint8_t Init(void); + + /** + * @brief DeInitializes the SDRAM device. + * @retval SDRAM status + */ + 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 + */ + 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 + */ + 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); + +private: + +}; + +#else +#error "This class must be used with DISCO_F746NG board only." +#endif // TARGET_DISCO_F746NG + +#endif +