flash_drv.h

Atmel AVR Mega SPI驱动

#define ICON_MATRIX_BASEADDR  (0x3b7c0)
#define FONT_MATRIX_BASEADDR  (0x0000)

#define FONT_MATRIX_BASEADDR_ASCII  (0x3b920)
#define VDP_ICON_BASEADDR (0x3c000)
#define MSG_FLASH_START_ADDRESS	(0x3d000)
#define Sector_Size		(0x1000)
#define MAX_Sector_num	3

#define Page_Size	(0x100)
#define Page_num_per_Sector	0x10
#define MAX_page_num  			(Page_num_per_Sector*MAX_Sector_num)

#define CHARACTER_FULL		0
#define CHARACTER_HALF		1

extern unsigned char SPI_HighSpeed_Read_Cont(unsigned char msb , unsigned char lsb, unsigned char *character_temp);
extern unsigned char Get_byte(unsigned char msb, unsigned char lsb, unsigned char row, unsigned char word_location);
extern unsigned char SPI_Master_init(void);
extern uint8 SPI_Write(uint8 page_num,uint8 *character,uint8 num);
extern uint8 SPI_Erase(uint8 sector_num);
extern uint8 SPI_Read_Status(void);

extern uint8 SPI_Read(uint8 page_num,uint8 *character, uint8 num);

extern uint8 SPI_Write_ICON(uint8 page_num, uint8 word_num,uint8 *character, uint8 num);
extern uint8 SPI_Erase_ICON(uint8 sector_num);