ST / SDRAM_DISCO_F469NI

Class to drive SDRAM on DISCO_F469NI

Dependents:   DISCO-F469NI_SDRAM_demo

SDRAM_DISCO_F469NI.h@0:8dee094d9554, 2016-03-18 (annotated)

Committer:
adustm
Date:
Fri Mar 18 09:43:04 2016 +0000
Revision:
0:8dee094d9554
DISCO_F469NI SDRAM class

Who changed what in which revision?

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adustm 0:8dee094d9554 1 /* Copyright (c) 2010-2016 mbed.org, MIT License
adustm 0:8dee094d9554 2 *
adustm 0:8dee094d9554 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
adustm 0:8dee094d9554 4 * and associated documentation files (the "Software"), to deal in the Software without
adustm 0:8dee094d9554 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
adustm 0:8dee094d9554 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
adustm 0:8dee094d9554 7 * Software is furnished to do so, subject to the following conditions:
adustm 0:8dee094d9554 8 *
adustm 0:8dee094d9554 9 * The above copyright notice and this permission notice shall be included in all copies or
adustm 0:8dee094d9554 10 * substantial portions of the Software.
adustm 0:8dee094d9554 11 *
adustm 0:8dee094d9554 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
adustm 0:8dee094d9554 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
adustm 0:8dee094d9554 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
adustm 0:8dee094d9554 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
adustm 0:8dee094d9554 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
adustm 0:8dee094d9554 17 */
adustm 0:8dee094d9554 18
adustm 0:8dee094d9554 19 #ifndef __SDRAM_DISCO_F469NI_H
adustm 0:8dee094d9554 20 #define __SDRAM_DISCO_F469NI_H
adustm 0:8dee094d9554 21
adustm 0:8dee094d9554 22 #ifdef TARGET_DISCO_F469NI
adustm 0:8dee094d9554 23
adustm 0:8dee094d9554 24 #include "mbed.h"
adustm 0:8dee094d9554 25 #include "stm32469i_discovery_sdram.h"
adustm 0:8dee094d9554 26
adustm 0:8dee094d9554 27 /*
adustm 0:8dee094d9554 28 This class drives the SDRAM driver (MT48LC4M32B2B5-7) present on DISCO_F469NI board.
adustm 0:8dee094d9554 29
adustm 0:8dee094d9554 30 Usage:
adustm 0:8dee094d9554 31
adustm 0:8dee094d9554 32 #include "mbed.h"
adustm 0:8dee094d9554 33 #include "SDRAM_DISCO_F469NI.h"
adustm 0:8dee094d9554 34
adustm 0:8dee094d9554 35 SDRAM_DISCO_F469NI SDRAM;
adustm 0:8dee094d9554 36
adustm 0:8dee094d9554 37 int main()
adustm 0:8dee094d9554 38 {
adustm 0:8dee094d9554 39 TODO
adustm 0:8dee094d9554 40 }
adustm 0:8dee094d9554 41 */
adustm 0:8dee094d9554 42 class SDRAM_DISCO_F469NI
adustm 0:8dee094d9554 43 {
adustm 0:8dee094d9554 44
adustm 0:8dee094d9554 45 public:
adustm 0:8dee094d9554 46 //! Constructor
adustm 0:8dee094d9554 47 SDRAM_DISCO_F469NI();
adustm 0:8dee094d9554 48
adustm 0:8dee094d9554 49 //! Destructor
adustm 0:8dee094d9554 50 ~SDRAM_DISCO_F469NI();
adustm 0:8dee094d9554 51
adustm 0:8dee094d9554 52
adustm 0:8dee094d9554 53 /**
adustm 0:8dee094d9554 54 * @brief Initializes the SDRAM device.
adustm 0:8dee094d9554 55 * @retval SDRAM status
adustm 0:8dee094d9554 56 */
adustm 0:8dee094d9554 57 uint8_t Init(void);
adustm 0:8dee094d9554 58
adustm 0:8dee094d9554 59 /**
adustm 0:8dee094d9554 60 * @brief DeInitializes the SDRAM device.
adustm 0:8dee094d9554 61 * @retval SDRAM status : SDRAM_OK or SDRAM_ERROR.
adustm 0:8dee094d9554 62 */
adustm 0:8dee094d9554 63 uint8_t DeInit(void);
adustm 0:8dee094d9554 64
adustm 0:8dee094d9554 65 /**
adustm 0:8dee094d9554 66 * @brief Programs the SDRAM device.
adustm 0:8dee094d9554 67 * @param RefreshCount: SDRAM refresh counter value
adustm 0:8dee094d9554 68 */
adustm 0:8dee094d9554 69 void Initialization_sequence(uint32_t RefreshCount);
adustm 0:8dee094d9554 70
adustm 0:8dee094d9554 71 /**
adustm 0:8dee094d9554 72 * @brief Reads an mount of data from the SDRAM memory in polling mode.
adustm 0:8dee094d9554 73 * @param uwStartAddress: Read start address
adustm 0:8dee094d9554 74 * @param pData: Pointer to data to be read
adustm 0:8dee094d9554 75 * @param uwDataSize: Size of read data from the memory
adustm 0:8dee094d9554 76 * @retval SDRAM status : SDRAM_OK or SDRAM_ERROR.
adustm 0:8dee094d9554 77 */
adustm 0:8dee094d9554 78 uint8_t ReadData(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize);
adustm 0:8dee094d9554 79
adustm 0:8dee094d9554 80 /**
adustm 0:8dee094d9554 81 * @brief Reads an mount of data from the SDRAM memory in DMA mode.
adustm 0:8dee094d9554 82 * @param uwStartAddress: Read start address
adustm 0:8dee094d9554 83 * @param pData: Pointer to data to be read
adustm 0:8dee094d9554 84 * @param uwDataSize: Size of read data from the memory
adustm 0:8dee094d9554 85 * @retval SDRAM status : SDRAM_OK or SDRAM_ERROR.
adustm 0:8dee094d9554 86 */
adustm 0:8dee094d9554 87 uint8_t ReadData_DMA(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize);
adustm 0:8dee094d9554 88
adustm 0:8dee094d9554 89 /**
adustm 0:8dee094d9554 90 * @brief Writes an mount of data to the SDRAM memory in polling mode.
adustm 0:8dee094d9554 91 * @param uwStartAddress: Write start address
adustm 0:8dee094d9554 92 * @param pData: Pointer to data to be written
adustm 0:8dee094d9554 93 * @param uwDataSize: Size of written data from the memory
adustm 0:8dee094d9554 94 * @retval SDRAM status : SDRAM_OK or SDRAM_ERROR.
adustm 0:8dee094d9554 95 */
adustm 0:8dee094d9554 96 uint8_t WriteData(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize);
adustm 0:8dee094d9554 97
adustm 0:8dee094d9554 98 /**
adustm 0:8dee094d9554 99 * @brief Writes an mount of data to the SDRAM memory in DMA mode.
adustm 0:8dee094d9554 100 * @param uwStartAddress: Write start address
adustm 0:8dee094d9554 101 * @param pData: Pointer to data to be written
adustm 0:8dee094d9554 102 * @param uwDataSize: Size of written data from the memory
adustm 0:8dee094d9554 103 * @retval SDRAM status : SDRAM_OK or SDRAM_ERROR.
adustm 0:8dee094d9554 104 */
adustm 0:8dee094d9554 105 uint8_t WriteData_DMA(uint32_t uwStartAddress, uint32_t *pData, uint32_t uwDataSize);
adustm 0:8dee094d9554 106
adustm 0:8dee094d9554 107 /**
adustm 0:8dee094d9554 108 * @brief Sends command to the SDRAM bank.
adustm 0:8dee094d9554 109 * @param SdramCmd: Pointer to SDRAM command structure
adustm 0:8dee094d9554 110 * @retval HAL status : SDRAM_OK or SDRAM_ERROR.
adustm 0:8dee094d9554 111 */
adustm 0:8dee094d9554 112 uint8_t Sendcmd(FMC_SDRAM_CommandTypeDef *SdramCmd);
adustm 0:8dee094d9554 113
adustm 0:8dee094d9554 114 private:
adustm 0:8dee094d9554 115
adustm 0:8dee094d9554 116 };
adustm 0:8dee094d9554 117
adustm 0:8dee094d9554 118 #else
adustm 0:8dee094d9554 119 #error "This class must be used with DISCO_F469NI board only."
adustm 0:8dee094d9554 120 #endif // TARGET_DISCO_F469NI
adustm 0:8dee094d9554 121
adustm 0:8dee094d9554 122 #endif
adustm 0:8dee094d9554 123