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old code test

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This commit is contained in:
Johnny Hsu 2025-04-02 01:53:07 +02:00
parent 22d0567449
commit b7349c38af
1 changed files with 26 additions and 26 deletions
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52
Software/Core/Src/main.c
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@ -592,32 +592,32 @@ static void MX_FMC_Init(void)
} }
/* USER CODE BEGIN FMC_Init 2 */ /* USER CODE BEGIN FMC_Init 2 */
FMC_SDRAM_CommandTypeDef Command; FMC_SDRAM_CommandTypeDef command;
/* Step 1 and Step 2 already done in HAL_SDRAM_Init() */ HAL_StatusTypeDef status;
/* Step 3: Configure a clock configuration enable command */ command.CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1;
Command.CommandMode = FMC_SDRAM_CMD_CLK_ENABLE; /* Set MODE bits to "001" */ command.CommandMode = FMC_SDRAM_CMD_CLK_ENABLE;
Command.CommandTarget = (FMC_SDRAM_CMD_TARGET_BANK1); /* configure the Target Bank bits */ command.AutoRefreshNumber = 1;
Command.AutoRefreshNumber = 1; command.ModeRegisterDefinition = 0;
Command.ModeRegisterDefinition = 0; status = HAL_SDRAM_SendCommand(&hsdram1, &command, 1000);
HAL_SDRAM_SendCommand(&hsdram1, &Command, 0xfff); HAL_Delay(1);
HAL_Delay(1); /* Step 4: Insert 100 us minimum delay - Min HAL Delay is 1ms */
/* Step 5: Configure a PALL (precharge all) command */
Command.CommandMode = FMC_SDRAM_CMD_PALL; /* Set MODE bits to "010" */ command.CommandMode = FMC_SDRAM_CMD_PALL;
HAL_SDRAM_SendCommand(&hsdram1, &Command, 0xfff); command.AutoRefreshNumber = 8;
/* Step 6: Configure an Auto Refresh command */ command.ModeRegisterDefinition = 0;
Command.CommandMode = FMC_SDRAM_CMD_AUTOREFRESH_MODE; /* Set MODE bits to "011" */ status = HAL_SDRAM_SendCommand(&hsdram1, &command, 1000);
Command.AutoRefreshNumber = 4;
HAL_SDRAM_SendCommand(&hsdram1, &Command, 0xfff); command.CommandMode = FMC_SDRAM_CMD_LOAD_MODE;
/* Step 7: Program the external memory mode register */ command.AutoRefreshNumber = 1;
Command.CommandMode = FMC_SDRAM_CMD_LOAD_MODE;/*set the MODE bits to "100" */ command.ModeRegisterDefinition = 0x130;
Command.ModeRegisterDefinition = (uint32_t)0 | 0<<3 | 2<<4 | 0<<7 | 1<<9; status = HAL_SDRAM_SendCommand(&hsdram1, &command, 1000);
Command.AutoRefreshNumber = 1;
HAL_SDRAM_SendCommand(&hsdram1, &Command, 0xfff); command.CommandMode = FMC_SDRAM_CMD_AUTOREFRESH_MODE;
/* Step 8: Set the refresh rate counter - refer to section SDRAM refresh timer register in RM0455 */ command.AutoRefreshNumber = 8;
/* Set the device refresh rate command.ModeRegisterDefinition = 0;
* COUNT = [(SDRAM self refresh time / number of row) x SDRAM CLK] – 20 status = HAL_SDRAM_SendCommand(&hsdram1, &command, 1000);
= [(70ms/8138) * 200MHz] - 20 ~ 1700 */
HAL_SDRAM_ProgramRefreshRate(&hsdram1, 1700); status = HAL_SDRAM_ProgramRefreshRate(&hsdram1, 0x0595);
/* USER CODE END FMC_Init 2 */ /* USER CODE END FMC_Init 2 */
} }