内部flash读出的数据全部为0,应该是写入进去了。各位帮忙看一下
#define FLASH_USER_START_ADDR ADDR_FLASH_SECTOR_3 /* Start @ of user Flash area */
#define FLASH_USER_END_ADDR 0x0800C190 /* End @ of user Flash area */
__IO uint32_t data32 = 10;
void FLASH_Read(aCm *Buf)
{
tPriint32 *Ptr=(tPriint32*)Buf;
Address = FLASH_USER_START_ADDR;
while (Address < FLASH_USER_END_ADDR)
{
data32 = *(__IO uint32_t*)Address;
Address = Address + 4;
}
}
void FLASH_Eraser()
{
/* Clear pending flags (if any) */
FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
/* Get the number of the start and end sectors */
StartSector = GetSector(FLASH_USER_START_ADDR);
EndSector = GetSector(FLASH_USER_END_ADDR);
for (SectorCounter = StartSector; SectorCounter < EndSector; SectorCounter += 8)
{
/* Device voltage range supposed to be [2.7V to 3.6V], the operation will
be done by word */
if (FLASH_EraseSector(SectorCounter, VoltageRange_3) != FLASH_COMPLETE)
{
/* Error occurred while sector erase.
User can add here some code to deal with this error */
while (1);
}
}
}
void FLASH_Write(aCm *Buf)
{
tPriint32 Value=20;
// float * Ptr=(float*)Buf;
FLASH_Unlock();
FLASH_Eraser();
Address = FLASH_USER_START_ADDR;
while (Address < FLASH_USER_END_ADDR)
{
if (FLASH_ProgramWord(Address,Value) == FLASH_COMPLETE)
{
Address = Address + 4;
}
else
{
while (1);
}
}
FLASH_Lock();
}
/**
* @brief Gets the sector of a given address
* @param None
* @retval The sector of a given address
*/
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 if((Address < ADDR_FLASH_SECTOR_8) && (Address >= ADDR_FLASH_SECTOR_7))
{
sector = FLASH_Sector_7;
}
else if((Address < ADDR_FLASH_SECTOR_9) && (Address >= ADDR_FLASH_SECTOR_8))
{
sector = FLASH_Sector_8;
}
else if((Address < ADDR_FLASH_SECTOR_10) && (Address >= ADDR_FLASH_SECTOR_9))
{
sector = FLASH_Sector_9;
}
else if((Address < ADDR_FLASH_SECTOR_11) && (Address >= ADDR_FLASH_SECTOR_10))
{
sector = FLASH_Sector_10;
}
else/*(Address < FLASH_END_ADDR) && (Address >= ADDR_FLASH_SECTOR_11))*/
{
sector = FLASH_Sector_11;
}
return sector;
}
基本就是官方例程修改的,我也比较原子哥的例程了,应该不会出现读出为零的问题啊,写入时没有出现停在while(1)处现象,说明已经全部写入了。
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