249 lines
7.4 KiB
C
249 lines
7.4 KiB
C
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/*
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*********************************************************************************************************
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* IAR Development Kits
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* on the
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*
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* M451
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*
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* Filename : fmc_flash.h
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* Version : V1.00
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* Programmer(s) : Qian Xianghong
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*********************************************************************************************************
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*/
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/*
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*********************************************************************************************************
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* INCLUDE FILES
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*********************************************************************************************************
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*/
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#include "includes.h"
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// <20><>Flashȫ<68>ֻ<EFBFBD><D6BB><EFBFBD>
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uint8_t Flash_rdBuf[FLASH_ERASE_SIZE];
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// <20><><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7>4<EFBFBD>ֽڶ<D6BD><DAB6><EFBFBD>
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#define ALIGN_DWORD_SIZE(addr) ((addr) & 0xFFFFFFFCul)
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/* Base address of the Flash sectors */
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#define ADDR_FLASH_SECTOR_0 ((uint32_t)0x08000000) /* Base address of Sector 0, 16 Kbytes */
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#define ADDR_FLASH_SECTOR_1 ((uint32_t)0x08004000) /* Base address of Sector 1, 16 Kbytes */
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#define ADDR_FLASH_SECTOR_2 ((uint32_t)0x08008000) /* Base address of Sector 2, 16 Kbytes */
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#define ADDR_FLASH_SECTOR_3 ((uint32_t)0x0800C000) /* Base address of Sector 3, 16 Kbytes */
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#define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08010000) /* Base address of Sector 4, 64 Kbytes */
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#define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08020000) /* Base address of Sector 5, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08040000) /* Base address of Sector 6, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_7 ((uint32_t)0x08060000) /* Base address of Sector 7, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_8 ((uint32_t)0x08080000) /* Base address of Sector 8, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_9 ((uint32_t)0x080A0000) /* Base address of Sector 9, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_10 ((uint32_t)0x080C0000) /* Base address of Sector10, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_11 ((uint32_t)0x080E0000) /* Base address of Sector11, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_12 ((uint32_t)0x08100000) /* Base address of Sector12, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_13 ((uint32_t)0x08120000) /* Base address of Sector13, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_14 ((uint32_t)0x08140000) /* Base address of Sector14, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_15 ((uint32_t)0x08160000) /* Base address of Sector15, 128 Kbytes */
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/**
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* @brief Gets the sector of a given address
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* @param None
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* @retval The sector of a given address
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*/
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static uint32_t GetSector(uint32_t Address)
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{
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uint32_t sector = 0;
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if((Address < ADDR_FLASH_SECTOR_1) && (Address >= ADDR_FLASH_SECTOR_0))
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{
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sector = FLASH_SECTOR_0;
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}
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else if((Address < ADDR_FLASH_SECTOR_2) && (Address >= ADDR_FLASH_SECTOR_1))
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{
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sector = FLASH_SECTOR_1;
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}
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else if((Address < ADDR_FLASH_SECTOR_3) && (Address >= ADDR_FLASH_SECTOR_2))
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{
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sector = FLASH_SECTOR_2;
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}
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else if((Address < ADDR_FLASH_SECTOR_4) && (Address >= ADDR_FLASH_SECTOR_3))
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{
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sector = FLASH_SECTOR_3;
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}
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else if((Address < ADDR_FLASH_SECTOR_5) && (Address >= ADDR_FLASH_SECTOR_4))
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{
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sector = FLASH_SECTOR_4;
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}
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else if((Address < ADDR_FLASH_SECTOR_6) && (Address >= ADDR_FLASH_SECTOR_5))
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{
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sector = FLASH_SECTOR_5;
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}
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else if((Address < ADDR_FLASH_SECTOR_7) && (Address >= ADDR_FLASH_SECTOR_6))
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{
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sector = FLASH_SECTOR_6;
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}
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else /* (Address < FLASH_END_ADDR) && (Address >= ADDR_FLASH_SECTOR_7) */
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{
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sector = FLASH_SECTOR_7;
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}
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return sector;
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}
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/**
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* @brief Gets sector Size
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* @param None
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* @retval The size of a given sector
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*/
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static uint32_t GetSectorSize(uint32_t Sector)
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{
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uint32_t sectorsize = 0x00;
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if((Sector == FLASH_SECTOR_0) || (Sector == FLASH_SECTOR_1) || (Sector == FLASH_SECTOR_2) || (Sector == FLASH_SECTOR_3))
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{
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sectorsize = 16 * 1024;
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}
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else if(Sector == FLASH_SECTOR_4)
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{
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sectorsize = 64 * 1024;
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}
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else
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{
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sectorsize = 128 * 1024;
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}
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return sectorsize;
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}
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/**
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* @brief Gets sector start Address
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* @param None
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* @retval The start address of a given sector
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*/
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static uint32_t GetSectorAddr(uint32_t Sector)
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{
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uint32_t sectoraddr = 0x00;
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if((Sector == FLASH_SECTOR_0) || (Sector == FLASH_SECTOR_1) || (Sector == FLASH_SECTOR_2) || (Sector == FLASH_SECTOR_3))
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{
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sectoraddr = ADDR_FLASH_SECTOR_0 + 16 * 1024 * (Sector - FLASH_SECTOR_0);
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}
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else if(Sector == FLASH_SECTOR_4)
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{
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sectoraddr = ADDR_FLASH_SECTOR_0 + 64 * 1024;
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}
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else
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{
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sectoraddr = ADDR_FLASH_SECTOR_0 + 128 * 1024 * (Sector - FLASH_SECTOR_5);
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}
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return sectoraddr;
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}
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// У<><D0A3>flash<73><68><EFBFBD><EFBFBD>
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uint8_t Flash_BufferVerify(uint32_t Addr, uint8_t *buf, uint32_t nbytes)
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{
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// <20><><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7>4<EFBFBD>ֽڶ<D6BD><DAB6><EFBFBD>
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uint32_t Addr4Start = ALIGN_DWORD_SIZE(Addr);
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uint32_t Addr4End = ALIGN_DWORD_SIZE(Addr + nbytes + 3);
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uint32_t u32Data, i, j = 0;
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for(i = Addr4Start; i < Addr4End; i += 4)
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{
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u32Data = *(__IO uint32_t *)(i);
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if(i >= Addr && i < Addr + nbytes && buf[j++] != (u32Data & 0xFF))
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return 0;
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if(i + 1 >= Addr && i + 1 < Addr + nbytes && buf[j++] != ((u32Data >> 8) & 0xFF))
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return 0;
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if(i + 2 >= Addr && i + 2 < Addr + nbytes && buf[j++] != ((u32Data >> 16) & 0xFF))
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return 0;
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if(i + 3 >= Addr && i + 3 < Addr + nbytes && buf[j++] != (u32Data >> 24))
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return 0;
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}
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return 1;
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}
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// <20><>flash<73><68><EFBFBD>ݶ<EFBFBD><DDB6>뻺<EFBFBD><EBBBBA><EFBFBD><EFBFBD>
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void Flash_BufferRead(uint32_t Addr, uint8_t *buf, uint32_t nbytes)
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{
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// <20><><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7>4<EFBFBD>ֽڶ<D6BD><DAB6><EFBFBD>
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uint32_t Addr4Start = ALIGN_DWORD_SIZE(Addr);
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uint32_t Addr4End = ALIGN_DWORD_SIZE(Addr + nbytes + 3);
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uint32_t u32Data, i, j = 0;
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for(i = Addr4Start; i < Addr4End; i += 4)
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{
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u32Data = *(__IO uint32_t *)(i);
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if(i >= Addr && i < Addr + nbytes)
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buf[j++] = (u32Data & 0xFF);
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if(i + 1 >= Addr && i + 1 < Addr + nbytes)
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buf[j++] = ((u32Data >> 8) & 0xFF);
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if(i + 2 >= Addr && i + 2 < Addr + nbytes)
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buf[j++] = ((u32Data >> 16) & 0xFF);
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if(i + 3 >= Addr && i + 3 < Addr + nbytes)
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buf[j++] = (u32Data >> 24);
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}
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}
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// <20><><EFBFBD><EFBFBD>һҳ
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void Flash_EraseSector(uint32_t Addr)
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{
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static FLASH_EraseInitTypeDef EraseInitStruct;
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uint32_t PAGEError = 0;
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EraseInitStruct.TypeErase = FLASH_TYPEERASE_SECTORS;
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EraseInitStruct.VoltageRange = FLASH_VOLTAGE_RANGE_3;
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EraseInitStruct.Sector = GetSector(Addr);
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EraseInitStruct.NbSectors = 1;
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HAL_FLASHEx_Erase(&EraseInitStruct, &PAGEError);
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}
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// д<><D0B4>һҳ<D2BB><D2B3>AddrΪ<72><EFBFBD>ַ
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void Flash_SectorWrite(uint32_t Addr, uint8_t *buf, uint32_t count)
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{
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unsigned long *buf32 = (unsigned long *) buf;
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uint32_t i = 0;
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while(i < count)
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{
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HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, Addr + i, *buf32++);
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i += 4;
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}
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}
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void Flash_BufferWrite(uint32_t Addr, uint8_t *buf, uint32_t nbytes)
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{
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uint32_t count, offset;
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uint32_t sector, sectorSize, sectorAddr;
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// <20><>1ҳ<31><D2B3>Bootloader<65><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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static uint8_t sectorErased[16] = {1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
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while(nbytes > 0)
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{
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sector = GetSector(Addr);
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sectorSize = GetSectorSize(sector);
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sectorAddr = GetSectorAddr(sector);
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// <20><><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3>ƫ<EFBFBD>ƣ<EFBFBD>ֻ<EFBFBD>е<EFBFBD>һҳ<D2BB>п<EFBFBD><D0BF>ܷ<EFBFBD>0<EFBFBD><30>
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offset = Addr - sectorAddr;
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// <20><><EFBFBD><EFBFBD>һҳ<D2BB><D2B3>д<EFBFBD><D0B4><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
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count = sectorSize - offset;
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if(count > nbytes)
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count = nbytes;
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>д<EFBFBD><D0B4>ij<EFBFBD><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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if(!sectorErased[sector])
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{
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ
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Flash_EraseSector(Addr);
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sectorErased[sector] = 1;
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}
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// д<>뱾ҳ<EBB1BE><D2B3><EFBFBD><EFBFBD>
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Flash_SectorWrite(Addr, buf, count);
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һҳ
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Addr += count;
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buf += count;
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nbytes -= count;
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}
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}
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