#ifndef __FLASH_H
#define __FLASH_H			    
#include <stm32f10x.h>

#define FLASH_PAGE_SIZE		256
#define FLASH_SECTOR_SIZE	4096
#define FLASH_SECTOR_COUNT	512
#define FLASH_BLOCK_SIZE	65536
#define FLASH_PAGES_PER_SECTOR	FLASH_SECTOR_SIZE/FLASH_PAGE_SIZE

#define	SPI_FLASH_CS PCout(4)  //选中FLASH					 
////////////////////////////////////////////////////////////////////////////
//W25X16读写
#define FLASH_ID 0XEF14
//指令表
#define W25X_WriteEnable		0x06 
#define W25X_WriteDisable		0x04 
#define W25X_ReadStatusReg		0x05 
#define W25X_WriteStatusReg		0x01 
#define W25X_ReadData			0x03 
#define W25X_FastReadData		0x0B 
#define W25X_FastReadDual		0x3B 
#define W25X_PageProgram		0x02 
#define W25X_BlockErase			0xD8 
#define W25X_SectorErase		0x20 
#define W25X_ChipErase			0xC7 
#define W25X_PowerDown			0xB9 
#define W25X_ReleasePowerDown	0xAB 
#define W25X_DeviceID			0xAB 
#define W25X_ManufactDeviceID	0x90 
#define W25X_JedecDeviceID		0x9F 

uint8_t SPI_Flash_Init(void);
u16  SPI_Flash_ReadID(void);  	    //读取FLASH ID
u8	 SPI_Flash_ReadSR(void);        //读取状态寄存器 
void SPI_FLASH_Write_SR(u8 sr);  	//写状态寄存器
void SPI_FLASH_Write_Enable(void);  //写使能 
void SPI_FLASH_Write_Disable(void);	//写保护
void SPI_Flash_Read(u8* pBuffer,u32 ReadAddr,u16 NumByteToRead);   //读取flash
void SPI_Flash_Write(u8* pBuffer,u32 WriteAddr,u16 NumByteToWrite);//写入flash
void SPI_Flash_Erase_Chip(void);    	  //整片擦除
void SPI_Flash_Erase_Sector(u32 Dst_Addr);//扇区擦除
void SPI_Flash_Wait_Busy(void);           //等待空闲
void SPI_Flash_PowerDown(void);           //进入掉电模式
void SPI_Flash_WAKEUP(void);			  //唤醒

void W25X_Read_Sector(uint32_t nSector, u8* pBuffer);
void W25X_Write_Sector(uint32_t nSector, u8* pBuffer);
#endif