#ifndef __FLASH_H
#define __FLASH_H

#ifdef __cplusplus
extern "C" {
#endif
#ifdef __FLASH_H_GLOBAL
#define __FLASH_H_EXTERN
#else
#define __FLASH_H_EXTERN extern
#endif

/************************************************************************************************
 *                                          Version                                             *
 ************************************************************************************************/

/************************************************************************************************
 *                                          How to use                                          *
 ************************************************************************************************/

/************************************************************************************************
 *                                          Enable config                                        *
 ************************************************************************************************/

/************************************************************************************************
 *                                          Includes                                            *
 ************************************************************************************************/

#include <stdint.h>

/************************************************************************************************
 *                                          Defines                                              *
 ************************************************************************************************/

#define FMC_PAGE_SIZE     ((uint16_t)0x800)
#define FMC_PAGE_SIZE_U16 ((uint16_t)0x400)
#define FMC_FLASH_BASE    ((uint32_t)0x08000000)

#define FMC_PAGE_SIZE_16K  ((uint32_t)0x4000)
#define FMC_PAGE_SIZE_32K  ((uint32_t)0x8000)
#define FMC_PAGE_SIZE_64K  ((uint32_t)0x10000)
#define FMC_PAGE_SIZE_128K ((uint32_t)0x20000)

// FLASH 扇区的起始地址
#define ADDR_FLASH_SECTOR_0   ((u32)0x08000000) // 扇区0起始地址, 16 Kbytes
#define ADDR_FLASH_SECTOR_1   ((u32)0x08004000) // 扇区1起始地址, 16 Kbytes
#define ADDR_FLASH_SECTOR_2   ((u32)0x08008000) // 扇区2起始地址, 16 Kbytes
#define ADDR_FLASH_SECTOR_3   ((u32)0x0800C000) // 扇区3起始地址, 16 Kbytes
#define ADDR_FLASH_SECTOR_4   ((u32)0x08010000) // 扇区4起始地址, 64 Kbytes
#define ADDR_FLASH_SECTOR_5   ((u32)0x08020000) // 扇区5起始地址, 128 Kbytes
#define ADDR_FLASH_SECTOR_6   ((u32)0x08040000) // 扇区6起始地址, 128 Kbytes
#define ADDR_FLASH_SECTOR_7   ((u32)0x08060000) // 扇区7起始地址, 128 Kbytes
#define ADDR_FLASH_SECTOR_8   ((u32)0x08080000) // 扇区8起始地址, 128 Kbytes
#define ADDR_FLASH_SECTOR_9   ((u32)0x080A0000) // 扇区9起始地址, 128 Kbytes
#define ADDR_FLASH_SECTOR_10  ((u32)0x080C0000) // 扇区10起始地址,128 Kbytes
#define ADDR_FLASH_SECTOR_11  ((u32)0x080E0000) // 扇区11起始地址,128 Kbytes
#define ADDR_FLASH_SECTOR_END ((u32)0x080FFFFF)

/************************************************************************************************
 *                                          Typedefs                                            *
 ************************************************************************************************/

/************************************************************************************************
 *                                          Interfaces                                          *
 ************************************************************************************************/

void     fmc_clear_flag_star(void);
void     fmc_clear_flag_end(void);
uint8_t  fmc_read_byte(uint32_t read_addr);
uint16_t fmc_read_half_word(uint32_t read_addr);
uint8_t  fmc_read_n_half_word(uint32_t read_addr, uint16_t *buff, uint16_t count);
uint8_t  fmc_read_one_page(uint32_t read_addr, uint16_t *buff);
uint8_t  fmc_erase_pages(uint32_t erase_addr, uint16_t len);
uint8_t  fmc_write_n_half_word(uint32_t write_addr, uint16_t *buff, uint16_t len);
uint16_t firmware_crc16_ccitt_false(uint16_t init_value, uint8_t *pbuff, uint32_t len);

#ifdef __cplusplus
};
#endif

#endif // __FLASH_H