#include?“ev_stm32_falsh.h“


uint16_t?Flash_Write_Without_check（uint32_t?iAddress?uint8_t?*buf?uint16_t?iNumByteToWrite）?
{
	uint16_t?i?=?0;
	volatile?FLASH_Status?FLASHStatus?=?FLASH_COMPLETE;

	while（（i?	{
		FLASHStatus?=?FLASH_ProgramHalfWord（iAddress?*（uint16_t*）buf）;
		i?=?i+2;
		iAddress?=?iAddress?+?2;
		buf?=?buf?+?2;
	}

	return?iNumByteToWrite;
}

int?Flash_Write（uint32_t?iAddress?uint8_t?*buf?uint32_t?iNbrToWrite）?
{
	uint32_t?sectoraddress;
	uint32_t?iNumByteToWrite?=?iNbrToWrite;
	uint16_t?sectoroffset;
	uint16_t?sectorremainspace;??
	uint16_t?i?=?0;????
	uint8_t?tmp[FLASH_PAGE_SIZE];

	volatile?FLASH_Status?FLASHStatus?=?FLASH_COMPLETE;

	FLASH_UnlockBank1（）;

	sectoraddress?=?iAddress?&?（~（FLASH_PAGE_SIZE?-?1?））?;//扇區(qū)地址?
	sectoroffset?=?iAddress?&?（FLASH_PAGE_SIZE?-?1）;?????//在扇區(qū)內(nèi)的偏移
	sectorremainspace?=?FLASH_PAGE_SIZE?-?sectoroffset;???????????//扇區(qū)剩余空間大小?

	if（iNumByteToWrite<=sectorremainspace）?sectorremainspace?=?iNumByteToWrite;//不大于4096個字節(jié)

	while（?1?）?{
		Flash_Read（sectoraddress?tmp?FLASH_PAGE_SIZE）;???//讀出整個扇區(qū)
		for（i=0;i		{???????//校驗數(shù)據(jù)
			if（tmp[sectoroffset+i]!=0XFF）?break;???????//需要擦除?
		}
		if（i			FLASHStatus?=?FLASH_ErasePage（sectoraddress）;?//擦除這個扇區(qū)
			if（FLASHStatus?!=?FLASH_COMPLETE）
				return?-1;
			for（i=0;i			{???//復(fù)制
				tmp[i+sectoroffset]=buf[i];???
			}
			Flash_Write_Without_check（sectoraddress?tmp?FLASH_PAGE_SIZE）;//寫入整個扇區(qū)??
		}?else?{
			Flash_Write_Without_check（iAddressbufsectorremainspace）;//寫已經(jīng)擦除了的直接寫入扇區(qū)剩余區(qū)間.
		}

		if（iNumByteToWrite==sectorremainspace）?//寫入結(jié)束了
			break;
		else?
		{
			sectoraddress?+=?FLASH_PAGE_SIZE;
			sectoroffset?=?0;//偏移位置為0?
			buf?+=?sectorremainspace;??//指針偏移
			iAddress?+=?sectorremainspace;//寫地址偏移????
			iNumByteToWrite?-=?sectorremainspace;??//字節(jié)數(shù)遞減
			if（iNumByteToWrite>FLASH_PAGE_SIZE）?
				sectorremainspace=FLASH_PAGE_SIZE;//下一個扇區(qū)還是寫不完
			else?
				sectorremainspace?=?iNumByteToWrite;??//下一個扇區(qū)可以寫完了
		}

	}

	FLASH_LockBank1（）;
	return?iNbrToWrite;?
}

int?Flash_Read（uint32_t?iAddress?uint8_t?*buf?uint32_t?iNbrToRead）?
{
	int?i?=?0;
	while（i?		*（buf?+?i）?=?*（__IO?uint8_t*）?iAddress++;
		i++;
	}
	return?i;
}

?屬性????????????大小?????日期????時間???名稱
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?????文件???????2495??2014-09-26?10:50??application\ev_stm32_falsh.c

?????文件????????878??2014-09-26?11:27??application\ev_stm32_falsh.h

?????文件????????537??2014-09-26?11:00??application\startup.c

?????目錄??????????0??2014-09-26?11:30??application

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?????????????????3910????????????????????4