151 lines
4.8 KiB
C
151 lines
4.8 KiB
C
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#include "corefmc.h"
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#include "fmc.h"
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#include "delay.h"
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//----------------------------------------------------------------------------
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void InitSDRAM(void);
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//----------------------------------------------------------------------------
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void InitCoreFmc(void)
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{
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InitSDRAM();
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}
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//----------------------------------------------------------------------------
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#define SDRAM_MODEREG_BURST_LENGTH_1 ((uint16_t)0x0000)
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#define SDRAM_MODEREG_BURST_LENGTH_2 ((uint16_t)0x0001)
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#define SDRAM_MODEREG_BURST_LENGTH_4 ((uint16_t)0x0002)
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#define SDRAM_MODEREG_BURST_LENGTH_8 ((uint16_t)0x0004)
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#define SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL ((uint16_t)0x0000)
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#define SDRAM_MODEREG_BURST_TYPE_INTERLEAVED ((uint16_t)0x0008)
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#define SDRAM_MODEREG_CAS_LATENCY_2 ((uint16_t)0x0020)
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#define SDRAM_MODEREG_CAS_LATENCY_3 ((uint16_t)0x0030)
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#define SDRAM_MODEREG_OPERATING_MODE_STANDARD ((uint16_t)0x0000)
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#define SDRAM_MODEREG_WRITEBURST_MODE_PROGRAMMED ((uint16_t)0x0000)
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#define SDRAM_MODEREG_WRITEBURST_MODE_SINGLE ((uint16_t)0x0200)
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//----------------------------------------------------------------------------
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uint8_t SDRAM_SendCommand1(uint32_t CommandMode, uint32_t Bank, uint32_t RefreshNum, uint32_t RegVal)
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{
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uint32_t CommandTarget;
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FMC_SDRAM_CommandTypeDef Command;
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if(Bank == 1)
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CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1;
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else if(Bank == 2)
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CommandTarget = FMC_SDRAM_CMD_TARGET_BANK2;
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else
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CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1_2;
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Command.CommandMode = CommandMode;
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Command.CommandTarget = CommandTarget;
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Command.AutoRefreshNumber = RefreshNum;
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Command.ModeRegisterDefinition = RegVal;
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if (HAL_SDRAM_SendCommand(&hsdram1, &Command, 0x1000) == HAL_OK)
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{
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return 1;
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}
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return 0;
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}
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uint8_t SDRAM_SendCommand2(uint32_t CommandMode, uint32_t Bank, uint32_t RefreshNum, uint32_t RegVal)
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{
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uint32_t CommandTarget;
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FMC_SDRAM_CommandTypeDef Command;
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if(Bank == 1)
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CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1;
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else if(Bank == 2)
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CommandTarget = FMC_SDRAM_CMD_TARGET_BANK2;
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else
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CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1_2;
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Command.CommandMode = CommandMode;
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Command.CommandTarget = CommandTarget;
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Command.AutoRefreshNumber = RefreshNum;
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Command.ModeRegisterDefinition = RegVal;
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if (HAL_SDRAM_SendCommand(&hsdram2, &Command, 0x1000) == HAL_OK)
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{
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return 1;
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}
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return 0;
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}
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void InitSDRAM(void)
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{
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uint32_t temp;
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// sdram1
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SDRAM_SendCommand1(FMC_SDRAM_CMD_CLK_ENABLE, 1, 1, 0); //<2F><><EFBFBD><EFBFBD>3<EFBFBD><33>ʹ<EFBFBD><CAB9>ʱ<EFBFBD><CAB1><EFBFBD>źţ<C5BA>SDCKE0 = 1
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DelayUs(500); //<2F><><EFBFBD><EFBFBD>4<EFBFBD><34><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ200us
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SDRAM_SendCommand1(FMC_SDRAM_CMD_PALL, 1, 1, 0); //<2F><><EFBFBD><EFBFBD>5<EFBFBD><35><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB>Ԥ<EFBFBD><D4A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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SDRAM_SendCommand1(FMC_SDRAM_CMD_AUTOREFRESH_MODE, 1, 8, 0); //<2F><><EFBFBD><EFBFBD>6<EFBFBD><36><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ˢ<EFBFBD>´<EFBFBD><C2B4><EFBFBD>
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temp = SDRAM_MODEREG_BURST_LENGTH_1 | //<2F><><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>1
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SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL | //<2F><><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD><EFBFBD><EFBFBD>
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SDRAM_MODEREG_CAS_LATENCY_3 | //<2F><><EFBFBD><EFBFBD>CASֵ<53><D6B5>3
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SDRAM_MODEREG_OPERATING_MODE_STANDARD | //<2F><><EFBFBD>ò<EFBFBD><C3B2><EFBFBD>ģʽ<C4A3><CABD><EFBFBD><EFBFBD>
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SDRAM_MODEREG_WRITEBURST_MODE_SINGLE; //<2F><><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB>дģʽ<C4A3><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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SDRAM_SendCommand1(FMC_SDRAM_CMD_LOAD_MODE, 1, 1, temp); //<2F><><EFBFBD><EFBFBD>7<EFBFBD><37>װ<EFBFBD><D7B0>ģʽ<C4A3>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>ֵ
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// SDRAMˢ<4D><CBA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>64ms<6D><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>8192<39>У<EFBFBD>ʱ<EFBFBD><CAB1>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD>180MHz/2=90MHz
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// <20><><EFBFBD><EFBFBD> COUNT = (64ms/8192)/(1/90us)-20 = 64000*90/8192-20 = 683
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HAL_SDRAM_ProgramRefreshRate(&hsdram1, 683); //<2F><><EFBFBD><EFBFBD>8<EFBFBD><38><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD><CBA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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// sdram2
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SDRAM_SendCommand2(FMC_SDRAM_CMD_CLK_ENABLE, 2, 1, 0); //<2F><><EFBFBD><EFBFBD>3<EFBFBD><33>ʹ<EFBFBD><CAB9>ʱ<EFBFBD><CAB1><EFBFBD>źţ<C5BA>SDCKE0 = 1
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DelayUs(500); //<2F><><EFBFBD><EFBFBD>4<EFBFBD><34><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ200us
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SDRAM_SendCommand2(FMC_SDRAM_CMD_PALL, 2, 1, 0); //<2F><><EFBFBD><EFBFBD>5<EFBFBD><35><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB>Ԥ<EFBFBD><D4A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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SDRAM_SendCommand2(FMC_SDRAM_CMD_AUTOREFRESH_MODE, 2, 8, 0); //<2F><><EFBFBD><EFBFBD>6<EFBFBD><36><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ˢ<EFBFBD>´<EFBFBD><C2B4><EFBFBD>
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temp = SDRAM_MODEREG_BURST_LENGTH_1 | //<2F><><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>1
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SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL | //<2F><><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD><EFBFBD><EFBFBD>
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SDRAM_MODEREG_CAS_LATENCY_3 | //<2F><><EFBFBD><EFBFBD>CASֵ<53><D6B5>3
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SDRAM_MODEREG_OPERATING_MODE_STANDARD | //<2F><><EFBFBD>ò<EFBFBD><C3B2><EFBFBD>ģʽ<C4A3><CABD><EFBFBD><EFBFBD>
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SDRAM_MODEREG_WRITEBURST_MODE_SINGLE; //<2F><><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB>дģʽ<C4A3><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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SDRAM_SendCommand2(FMC_SDRAM_CMD_LOAD_MODE, 2, 1, temp); //<2F><><EFBFBD><EFBFBD>7<EFBFBD><37>װ<EFBFBD><D7B0>ģʽ<C4A3>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>ֵ
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HAL_SDRAM_ProgramRefreshRate(&hsdram2, 683); //<2F><><EFBFBD><EFBFBD>8<EFBFBD><38><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD><CBA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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}
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//----------------------------------------------------------------------------
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// д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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void FmcWriteReg(u32 wAddr, u16 data)
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{
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*((u16*)(wAddr)) = data;
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}
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// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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u16 FmcReadReg(u32 rAddr)
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{
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return (*((vu16 *)(rAddr)));
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}
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void FmcWriteConstBuf(u32 wAddr, u16* pBuffer, u32 num)
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{
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// printf("FmcWriteConstBuf, addr=0x%x, len=%d\r\n", wAddr, num);
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while(num != 0)
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{
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*((u16*)(wAddr)) = *pBuffer++;
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num--;
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}
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}
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void FmcReadConstBuf(u32 rAddr, u16* pBuffer, u32 num)
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{
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while(num != 0)
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{
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*pBuffer++ = *((vu16*)(rAddr));
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num--;
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}
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}
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