请教各位大虾一个很菜的问题

dengzhengbing · 发表于 2014-8-29 18:07:00

//////////////////////////////////////////////////////////////////////////////////////////////////////
#define STM32_FLASH_SIZE 256

//////////////////////////////////////////////////////////////////////////////////////////////////////
#define STM32_FLASH_BASE  0x08000000
#if STM32_FLASH_SIZE<255
#define STM_SECTOR_SIZE 1024
#else
#define STM_SECTOR_SIZE 2048
#endif

#define EEPROM_PAGE_ADDR    STM32_FLASH_BASE + (STM32_FLASH_SIZE*1024) - STM_SECTOR_SIZE //页地址
#define EEPROM_STRART_ADDR  EEPROM_PAGE_ADDR + 4 //EEPROM起始地址

void STMFLASH_Write(u16 WriteAddr,u16 *pBuffer,u16 NumToWrite)
{

   uint8_t  i,erase = 0;
   uint32_t EEPROM_ADDR = EEPROM_STRART_ADDR + WriteAddr;//写入的起始地址
   uint32_t EEPROM_ADDRS= EEPROM_ADDR + 2*NumToWrite;    //结束地址

         if((EEPROM_ADDR>=EEPROM_STRART_ADDR)&&(EEPROM_ADDRS<(STM32_FLASH_BASE+1024*STM32_FLASH_SIZE)))//检查越界
{
FLASH_Unlock();

{


   STMFLASH_Read(0,STMFLASH_BUF);


for(i=0;i<NumToWrite;i++)//D￡?éêy?Y
{

if(STMFLASH_BUF[WriteAddr+4+i]!=0xFFFF)//Dèòa2á3y
   erase=1;
   break;
}
if(erase
{

while(!(FLASH_ErasePage(EEPROM_PAGE_ADDR) == FLASH_COMPLETE));//擦除扇区



  STMFLASH_Read(0,STMFLASH_BUF);
while(1){for(i=0;i<1024;i++){uart1_SendDatas(STMFLASH_BUF);}}
                                             这里串口返回的数据是FF FF FF FF 00 00  00 00....
                                             for(i=WriteAddr+4;i<NumToWrite+4;i++)//?′??
{
STMFLASH_BUF[WriteAddr+4+i]=pBuffer;
}


STMFLASH_Write_NoCheck(EEPROM_STRART_ADDR,STMFLASH_BUF+4,(STM_SECTOR_SIZE/2)-4)
}
else

                                             STMFLASH_Write_NoCheck(EEPROM_ADDR,pBuffer,NumToWrite);
｝