249 lines
7.4 KiB
C
249 lines
7.4 KiB
C
/*
|
||
*********************************************************************************************************
|
||
* IAR Development Kits
|
||
* on the
|
||
*
|
||
* M451
|
||
*
|
||
* Filename : fmc_flash.h
|
||
* Version : V1.00
|
||
* Programmer(s) : Qian Xianghong
|
||
*********************************************************************************************************
|
||
*/
|
||
|
||
/*
|
||
*********************************************************************************************************
|
||
* INCLUDE FILES
|
||
*********************************************************************************************************
|
||
*/
|
||
|
||
#include "includes.h"
|
||
|
||
// 读Flash全局缓冲
|
||
uint8_t Flash_rdBuf[FLASH_ERASE_SIZE];
|
||
|
||
// 将地址按4字节对齐
|
||
#define ALIGN_DWORD_SIZE(addr) ((addr) & 0xFFFFFFFCul)
|
||
|
||
/* Base address of the Flash sectors */
|
||
|
||
#define ADDR_FLASH_SECTOR_0 ((uint32_t)0x08000000) /* Base address of Sector 0, 16 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_1 ((uint32_t)0x08004000) /* Base address of Sector 1, 16 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_2 ((uint32_t)0x08008000) /* Base address of Sector 2, 16 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_3 ((uint32_t)0x0800C000) /* Base address of Sector 3, 16 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08010000) /* Base address of Sector 4, 64 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08020000) /* Base address of Sector 5, 128 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08040000) /* Base address of Sector 6, 128 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_7 ((uint32_t)0x08060000) /* Base address of Sector 7, 128 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_8 ((uint32_t)0x08080000) /* Base address of Sector 8, 128 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_9 ((uint32_t)0x080A0000) /* Base address of Sector 9, 128 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_10 ((uint32_t)0x080C0000) /* Base address of Sector10, 128 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_11 ((uint32_t)0x080E0000) /* Base address of Sector11, 128 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_12 ((uint32_t)0x08100000) /* Base address of Sector12, 128 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_13 ((uint32_t)0x08120000) /* Base address of Sector13, 128 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_14 ((uint32_t)0x08140000) /* Base address of Sector14, 128 Kbytes */
|
||
#define ADDR_FLASH_SECTOR_15 ((uint32_t)0x08160000) /* Base address of Sector15, 128 Kbytes */
|
||
|
||
/**
|
||
* @brief Gets the sector of a given address
|
||
* @param None
|
||
* @retval The sector of a given address
|
||
*/
|
||
static uint32_t GetSector(uint32_t Address)
|
||
{
|
||
uint32_t sector = 0;
|
||
|
||
if((Address < ADDR_FLASH_SECTOR_1) && (Address >= ADDR_FLASH_SECTOR_0))
|
||
{
|
||
sector = FLASH_SECTOR_0;
|
||
}
|
||
else if((Address < ADDR_FLASH_SECTOR_2) && (Address >= ADDR_FLASH_SECTOR_1))
|
||
{
|
||
sector = FLASH_SECTOR_1;
|
||
}
|
||
else if((Address < ADDR_FLASH_SECTOR_3) && (Address >= ADDR_FLASH_SECTOR_2))
|
||
{
|
||
sector = FLASH_SECTOR_2;
|
||
}
|
||
else if((Address < ADDR_FLASH_SECTOR_4) && (Address >= ADDR_FLASH_SECTOR_3))
|
||
{
|
||
sector = FLASH_SECTOR_3;
|
||
}
|
||
else if((Address < ADDR_FLASH_SECTOR_5) && (Address >= ADDR_FLASH_SECTOR_4))
|
||
{
|
||
sector = FLASH_SECTOR_4;
|
||
}
|
||
else if((Address < ADDR_FLASH_SECTOR_6) && (Address >= ADDR_FLASH_SECTOR_5))
|
||
{
|
||
sector = FLASH_SECTOR_5;
|
||
}
|
||
else if((Address < ADDR_FLASH_SECTOR_7) && (Address >= ADDR_FLASH_SECTOR_6))
|
||
{
|
||
sector = FLASH_SECTOR_6;
|
||
}
|
||
else /* (Address < FLASH_END_ADDR) && (Address >= ADDR_FLASH_SECTOR_7) */
|
||
{
|
||
sector = FLASH_SECTOR_7;
|
||
}
|
||
return sector;
|
||
}
|
||
|
||
/**
|
||
* @brief Gets sector Size
|
||
* @param None
|
||
* @retval The size of a given sector
|
||
*/
|
||
static uint32_t GetSectorSize(uint32_t Sector)
|
||
{
|
||
uint32_t sectorsize = 0x00;
|
||
if((Sector == FLASH_SECTOR_0) || (Sector == FLASH_SECTOR_1) || (Sector == FLASH_SECTOR_2) || (Sector == FLASH_SECTOR_3))
|
||
{
|
||
sectorsize = 16 * 1024;
|
||
}
|
||
else if(Sector == FLASH_SECTOR_4)
|
||
{
|
||
sectorsize = 64 * 1024;
|
||
}
|
||
else
|
||
{
|
||
sectorsize = 128 * 1024;
|
||
}
|
||
return sectorsize;
|
||
}
|
||
|
||
/**
|
||
* @brief Gets sector start Address
|
||
* @param None
|
||
* @retval The start address of a given sector
|
||
*/
|
||
static uint32_t GetSectorAddr(uint32_t Sector)
|
||
{
|
||
uint32_t sectoraddr = 0x00;
|
||
if((Sector == FLASH_SECTOR_0) || (Sector == FLASH_SECTOR_1) || (Sector == FLASH_SECTOR_2) || (Sector == FLASH_SECTOR_3))
|
||
{
|
||
sectoraddr = ADDR_FLASH_SECTOR_0 + 16 * 1024 * (Sector - FLASH_SECTOR_0);
|
||
}
|
||
else if(Sector == FLASH_SECTOR_4)
|
||
{
|
||
sectoraddr = ADDR_FLASH_SECTOR_0 + 64 * 1024;
|
||
}
|
||
else
|
||
{
|
||
sectoraddr = ADDR_FLASH_SECTOR_0 + 128 * 1024 * (Sector - FLASH_SECTOR_5);
|
||
}
|
||
return sectoraddr;
|
||
}
|
||
|
||
// 校验flash内容
|
||
uint8_t Flash_BufferVerify(uint32_t Addr, uint8_t *buf, uint32_t nbytes)
|
||
{
|
||
// 将地址按4字节对齐
|
||
uint32_t Addr4Start = ALIGN_DWORD_SIZE(Addr);
|
||
uint32_t Addr4End = ALIGN_DWORD_SIZE(Addr + nbytes + 3);
|
||
uint32_t u32Data, i, j = 0;
|
||
|
||
for(i = Addr4Start; i < Addr4End; i += 4)
|
||
{
|
||
u32Data = *(__IO uint32_t *)(i);
|
||
if(i >= Addr && i < Addr + nbytes && buf[j++] != (u32Data & 0xFF))
|
||
return 0;
|
||
if(i + 1 >= Addr && i + 1 < Addr + nbytes && buf[j++] != ((u32Data >> 8) & 0xFF))
|
||
return 0;
|
||
if(i + 2 >= Addr && i + 2 < Addr + nbytes && buf[j++] != ((u32Data >> 16) & 0xFF))
|
||
return 0;
|
||
if(i + 3 >= Addr && i + 3 < Addr + nbytes && buf[j++] != (u32Data >> 24))
|
||
return 0;
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
// 将flash内容读入缓冲区
|
||
void Flash_BufferRead(uint32_t Addr, uint8_t *buf, uint32_t nbytes)
|
||
{
|
||
// 将地址按4字节对齐
|
||
uint32_t Addr4Start = ALIGN_DWORD_SIZE(Addr);
|
||
uint32_t Addr4End = ALIGN_DWORD_SIZE(Addr + nbytes + 3);
|
||
uint32_t u32Data, i, j = 0;
|
||
|
||
for(i = Addr4Start; i < Addr4End; i += 4)
|
||
{
|
||
u32Data = *(__IO uint32_t *)(i);
|
||
|
||
if(i >= Addr && i < Addr + nbytes)
|
||
buf[j++] = (u32Data & 0xFF);
|
||
if(i + 1 >= Addr && i + 1 < Addr + nbytes)
|
||
buf[j++] = ((u32Data >> 8) & 0xFF);
|
||
if(i + 2 >= Addr && i + 2 < Addr + nbytes)
|
||
buf[j++] = ((u32Data >> 16) & 0xFF);
|
||
if(i + 3 >= Addr && i + 3 < Addr + nbytes)
|
||
buf[j++] = (u32Data >> 24);
|
||
}
|
||
}
|
||
|
||
// 擦除一页
|
||
void Flash_EraseSector(uint32_t Addr)
|
||
{
|
||
static FLASH_EraseInitTypeDef EraseInitStruct;
|
||
uint32_t PAGEError = 0;
|
||
|
||
EraseInitStruct.TypeErase = FLASH_TYPEERASE_SECTORS;
|
||
EraseInitStruct.VoltageRange = FLASH_VOLTAGE_RANGE_3;
|
||
EraseInitStruct.Sector = GetSector(Addr);
|
||
EraseInitStruct.NbSectors = 1;
|
||
HAL_FLASHEx_Erase(&EraseInitStruct, &PAGEError);
|
||
}
|
||
|
||
// 写入一页，Addr为首地址
|
||
void Flash_SectorWrite(uint32_t Addr, uint8_t *buf, uint32_t count)
|
||
{
|
||
unsigned long *buf32 = (unsigned long *) buf;
|
||
uint32_t i = 0;
|
||
|
||
while(i < count)
|
||
{
|
||
HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, Addr + i, *buf32++);
|
||
i += 4;
|
||
}
|
||
}
|
||
|
||
void Flash_BufferWrite(uint32_t Addr, uint8_t *buf, uint32_t nbytes)
|
||
{
|
||
uint32_t count, offset;
|
||
uint32_t sector, sectorSize, sectorAddr;
|
||
|
||
// 第1页（Bootloader）不允许擦除
|
||
static uint8_t sectorErased[16] = {1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
|
||
|
||
while(nbytes > 0)
|
||
{
|
||
sector = GetSector(Addr);
|
||
sectorSize = GetSectorSize(sector);
|
||
sectorAddr = GetSectorAddr(sector);
|
||
|
||
// 计算页内偏移（只有第一页有可能非0）
|
||
offset = Addr - sectorAddr;
|
||
|
||
// 计算一页内写入字节数
|
||
count = sectorSize - offset;
|
||
if(count > nbytes)
|
||
count = nbytes;
|
||
|
||
// 如果第一次写入某个扇区，则擦除
|
||
if(!sectorErased[sector])
|
||
{
|
||
// 擦除本页
|
||
Flash_EraseSector(Addr);
|
||
sectorErased[sector] = 1;
|
||
}
|
||
|
||
// 写入本页数据
|
||
Flash_SectorWrite(Addr, buf, count);
|
||
|
||
// 计算下一页
|
||
Addr += count;
|
||
buf += count;
|
||
nbytes -= count;
|
||
}
|
||
}
|