/* * File : drv_sdram.c * This file is part of RT-Thread RTOS * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Change Logs: * Date Author Notes * 2018-05-17 ZYH first implementation */ #include "drv_sdram.h" #include #ifdef BSP_USING_SDRAM SDRAM_HandleTypeDef hsdram; static void BSP_SDRAM_Initialization_Sequence(SDRAM_HandleTypeDef *hsdram, FMC_SDRAM_CommandTypeDef *Command); /* FMC initialization function */ void MX_FMC_Init(void) { FMC_SDRAM_TimingTypeDef SdramTiming; FMC_SDRAM_CommandTypeDef command; /** Perform the SDRAM1 memory initialization sequence */ hsdram.Instance = FMC_SDRAM_DEVICE; /* hsdram.Init */ hsdram.Init.SDBank = FMC_SDRAM_BANK1; hsdram.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8; hsdram.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12; hsdram.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_32; hsdram.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4; hsdram.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_2; hsdram.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE; hsdram.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2; hsdram.Init.ReadBurst = FMC_SDRAM_RBURST_ENABLE; hsdram.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_0; /* SdramTiming */ SdramTiming.LoadToActiveDelay = 2; SdramTiming.ExitSelfRefreshDelay = 6; SdramTiming.SelfRefreshTime = 4; SdramTiming.RowCycleDelay = 6; SdramTiming.WriteRecoveryTime = 2; SdramTiming.RPDelay = 2; SdramTiming.RCDDelay = 2; HAL_SDRAM_Init(&hsdram, &SdramTiming); BSP_SDRAM_Initialization_Sequence(&hsdram, &command); } static uint32_t FMC_Initialized = 0; static void HAL_FMC_MspInit(void) { GPIO_InitTypeDef GPIO_InitStruct; if (FMC_Initialized) { return; } FMC_Initialized = 1; /* Peripheral clock enable */ __HAL_RCC_FMC_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE(); __HAL_RCC_GPIOE_CLK_ENABLE(); __HAL_RCC_GPIOF_CLK_ENABLE(); __HAL_RCC_GPIOG_CLK_ENABLE(); __HAL_RCC_GPIOH_CLK_ENABLE(); __HAL_RCC_GPIOI_CLK_ENABLE(); /** FMC GPIO Configuration PE1 ------> FMC_NBL1 PE0 ------> FMC_NBL0 PG15 ------> FMC_SDNCAS PD0 ------> FMC_D2 PI4 ------> FMC_NBL2 PD1 ------> FMC_D3 PI3 ------> FMC_D27 PI2 ------> FMC_D26 PF0 ------> FMC_A0 PI5 ------> FMC_NBL3 PI7 ------> FMC_D29 PI10 ------> FMC_D31 PI6 ------> FMC_D28 PH15 ------> FMC_D23 PI1 ------> FMC_D25 PF1 ------> FMC_A1 PI9 ------> FMC_D30 PH13 ------> FMC_D21 PH14 ------> FMC_D22 PI0 ------> FMC_D24 PF2 ------> FMC_A2 PF3 ------> FMC_A3 PG8 ------> FMC_SDCLK PF4 ------> FMC_A4 PH5 ------> FMC_SDNWE PH3 ------> FMC_SDNE0 PF5 ------> FMC_A5 PH2 ------> FMC_SDCKE0 PD15 ------> FMC_D1 PD10 ------> FMC_D15 PD14 ------> FMC_D0 PD9 ------> FMC_D14 PD8 ------> FMC_D13 PF12 ------> FMC_A6 PG1 ------> FMC_A11 PF15 ------> FMC_A9 PH12 ------> FMC_D20 PF13 ------> FMC_A7 PG0 ------> FMC_A10 PE8 ------> FMC_D5 PG5 ------> FMC_BA1 PG4 ------> FMC_BA0 PH9 ------> FMC_D17 PH11 ------> FMC_D19 PF14 ------> FMC_A8 PF11 ------> FMC_SDNRAS PE9 ------> FMC_D6 PE11 ------> FMC_D8 PE14 ------> FMC_D11 PH8 ------> FMC_D16 PH10 ------> FMC_D18 PE7 ------> FMC_D4 PE10 ------> FMC_D7 PE12 ------> FMC_D9 PE15 ------> FMC_D12 PE13 ------> FMC_D10 */ /* GPIO_InitStruct */ GPIO_InitStruct.Pin = GPIO_PIN_1 | GPIO_PIN_0 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_11 | GPIO_PIN_14 | GPIO_PIN_7 | GPIO_PIN_10 | GPIO_PIN_12 | GPIO_PIN_15 | GPIO_PIN_13; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF12_FMC; HAL_GPIO_Init(GPIOE, &GPIO_InitStruct); /* GPIO_InitStruct */ GPIO_InitStruct.Pin = GPIO_PIN_15 | GPIO_PIN_8 | GPIO_PIN_1 | GPIO_PIN_0 | GPIO_PIN_5 | GPIO_PIN_4; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF12_FMC; HAL_GPIO_Init(GPIOG, &GPIO_InitStruct); /* GPIO_InitStruct */ GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_15 | GPIO_PIN_10 | GPIO_PIN_14 | GPIO_PIN_9 | GPIO_PIN_8; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF12_FMC; HAL_GPIO_Init(GPIOD, &GPIO_InitStruct); /* GPIO_InitStruct */ GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_3 | GPIO_PIN_2 | GPIO_PIN_5 | GPIO_PIN_7 | GPIO_PIN_10 | GPIO_PIN_6 | GPIO_PIN_1 | GPIO_PIN_9 | GPIO_PIN_0; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF12_FMC; HAL_GPIO_Init(GPIOI, &GPIO_InitStruct); /* GPIO_InitStruct */ GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_12 | GPIO_PIN_15 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_11; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF12_FMC; HAL_GPIO_Init(GPIOF, &GPIO_InitStruct); /* GPIO_InitStruct */ GPIO_InitStruct.Pin = GPIO_PIN_15 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_5 | GPIO_PIN_3 | GPIO_PIN_2 | GPIO_PIN_12 | GPIO_PIN_9 | GPIO_PIN_11 | GPIO_PIN_8 | GPIO_PIN_10; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF12_FMC; HAL_GPIO_Init(GPIOH, &GPIO_InitStruct); } void HAL_SDRAM_MspInit(SDRAM_HandleTypeDef *sdramHandle) { HAL_FMC_MspInit(); } static uint32_t FMC_DeInitialized = 0; static void HAL_FMC_MspDeInit(void) { if (FMC_DeInitialized) { return; } FMC_DeInitialized = 1; /* Peripheral clock enable */ __HAL_RCC_FMC_CLK_DISABLE(); /** FMC GPIO Configuration PE1 ------> FMC_NBL1 PE0 ------> FMC_NBL0 PG15 ------> FMC_SDNCAS PD0 ------> FMC_D2 PI4 ------> FMC_NBL2 PD1 ------> FMC_D3 PI3 ------> FMC_D27 PI2 ------> FMC_D26 PF0 ------> FMC_A0 PI5 ------> FMC_NBL3 PI7 ------> FMC_D29 PI10 ------> FMC_D31 PI6 ------> FMC_D28 PH15 ------> FMC_D23 PI1 ------> FMC_D25 PF1 ------> FMC_A1 PI9 ------> FMC_D30 PH13 ------> FMC_D21 PH14 ------> FMC_D22 PI0 ------> FMC_D24 PF2 ------> FMC_A2 PF3 ------> FMC_A3 PG8 ------> FMC_SDCLK PF4 ------> FMC_A4 PH5 ------> FMC_SDNWE PH3 ------> FMC_SDNE0 PF5 ------> FMC_A5 PH2 ------> FMC_SDCKE0 PD15 ------> FMC_D1 PD10 ------> FMC_D15 PD14 ------> FMC_D0 PD9 ------> FMC_D14 PD8 ------> FMC_D13 PF12 ------> FMC_A6 PG1 ------> FMC_A11 PF15 ------> FMC_A9 PH12 ------> FMC_D20 PF13 ------> FMC_A7 PG0 ------> FMC_A10 PE8 ------> FMC_D5 PG5 ------> FMC_BA1 PG4 ------> FMC_BA0 PH9 ------> FMC_D17 PH11 ------> FMC_D19 PF14 ------> FMC_A8 PF11 ------> FMC_SDNRAS PE9 ------> FMC_D6 PE11 ------> FMC_D8 PE14 ------> FMC_D11 PH8 ------> FMC_D16 PH10 ------> FMC_D18 PE7 ------> FMC_D4 PE10 ------> FMC_D7 PE12 ------> FMC_D9 PE15 ------> FMC_D12 PE13 ------> FMC_D10 */ HAL_GPIO_DeInit(GPIOE, GPIO_PIN_1 | GPIO_PIN_0 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_11 | GPIO_PIN_14 | GPIO_PIN_7 | GPIO_PIN_10 | GPIO_PIN_12 | GPIO_PIN_15 | GPIO_PIN_13); HAL_GPIO_DeInit(GPIOG, GPIO_PIN_15 | GPIO_PIN_8 | GPIO_PIN_1 | GPIO_PIN_0 | GPIO_PIN_5 | GPIO_PIN_4); HAL_GPIO_DeInit(GPIOD, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_15 | GPIO_PIN_10 | GPIO_PIN_14 | GPIO_PIN_9 | GPIO_PIN_8); HAL_GPIO_DeInit(GPIOI, GPIO_PIN_4 | GPIO_PIN_3 | GPIO_PIN_2 | GPIO_PIN_5 | GPIO_PIN_7 | GPIO_PIN_10 | GPIO_PIN_6 | GPIO_PIN_1 | GPIO_PIN_9 | GPIO_PIN_0); HAL_GPIO_DeInit(GPIOF, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_12 | GPIO_PIN_15 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_11); HAL_GPIO_DeInit(GPIOH, GPIO_PIN_15 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_5 | GPIO_PIN_3 | GPIO_PIN_2 | GPIO_PIN_12 | GPIO_PIN_9 | GPIO_PIN_11 | GPIO_PIN_8 | GPIO_PIN_10); } void HAL_SDRAM_MspDeInit(SDRAM_HandleTypeDef *sdramHandle) { HAL_FMC_MspDeInit(); } static void BSP_SDRAM_Initialization_Sequence(SDRAM_HandleTypeDef *hsdram, FMC_SDRAM_CommandTypeDef *Command) { __IO uint32_t tmpmrd = 0; int delay = 216000/3; /* Step 3: Configure a clock configuration enable command */ Command->CommandMode = FMC_SDRAM_CMD_CLK_ENABLE; Command->CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1; Command->AutoRefreshNumber = 1; Command->ModeRegisterDefinition = 0; /* Send the command */ HAL_SDRAM_SendCommand(hsdram, Command, SDRAM_TIMEOUT); /* Step 4: Insert 100 us minimum delay */ /* Inserted delay is equal to 1 ms due to systick time base unit (ms) */ while(delay) { delay--; } /* Step 5: Configure a PALL (precharge all) command */ Command->CommandMode = FMC_SDRAM_CMD_PALL; Command->CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1; Command->AutoRefreshNumber = 1; Command->ModeRegisterDefinition = 0; /* Send the command */ HAL_SDRAM_SendCommand(hsdram, Command, SDRAM_TIMEOUT); /* Step 6 : Configure a Auto-Refresh command */ Command->CommandMode = FMC_SDRAM_CMD_AUTOREFRESH_MODE; Command->CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1; Command->AutoRefreshNumber = 8; Command->ModeRegisterDefinition = 0; /* Send the command */ HAL_SDRAM_SendCommand(hsdram, Command, SDRAM_TIMEOUT); /* Step 7: Program the external memory mode register */ tmpmrd = (uint32_t)SDRAM_MODEREG_BURST_LENGTH_1 | SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL | SDRAM_MODEREG_CAS_LATENCY_2 | SDRAM_MODEREG_OPERATING_MODE_STANDARD | SDRAM_MODEREG_WRITEBURST_MODE_SINGLE; Command->CommandMode = FMC_SDRAM_CMD_LOAD_MODE; Command->CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1; Command->AutoRefreshNumber = 1; Command->ModeRegisterDefinition = tmpmrd; /* Send the command */ HAL_SDRAM_SendCommand(hsdram, Command, SDRAM_TIMEOUT); /* Step 8: Set the refresh rate counter */ /* (15.62 us x Freq) - 20 */ /* Set the device refresh counter */ hsdram->Instance->SDRTR |= ((uint32_t)((1292) << 1)); } int bsp_sdram_hw_init(void) { MX_FMC_Init(); return 0; } #endif