#ifndef _FRAM_H_
#define _FRAM_H_

#include "stm32f10x.h"
#include "stm32f10x_gpio.h"

//#define FRAM_SPI                                  SPI3
//#define FRAM_SPI_CLK                              RCC_APB2Periph_SPI1



#define FRAM_SPI_SCK_PIN                          GPIO_Pin_3                
#define FRAM_SPI_SCK_GPIO_PORT                    GPIOB    
#define FRAM_SPI_SCK_GPIO_CLK                     RCC_APB2Periph_GPIOB

#define FRAM_SPI_MISO_PIN                         GPIO_Pin_4                 
#define FRAM_SPI_MISO_GPIO_PORT                   GPIOB  
#define FRAM_SPI_MISO_GPIO_CLK                    RCC_APB2Periph_GPIOB

#define FRAM_SPI_MOSI_PIN                         GPIO_Pin_5                 
#define FRAM_SPI_MOSI_GPIO_PORT                   GPIOA                     
#define FRAM_SPI_MOSI_GPIO_CLK                    RCC_APB2Periph_GPIOB

#define SPI_FLASH_CS_PIN                          GPIO_Pin_15
#define SPI_FLASH_GPIO_PORT                       GPIOA
#define SPI_FLASH_GPIO_CLK                        RCC_APB2Periph_GPIOA


/*
#define FRAM_CS_PIN                               GPIO_Pin_0                 
#define FRAM_CS_GPIO_PORT                         GPIOB    
#define FRAM_CS_GPIO_CLK                          RCC_APB2Periph_GPIOB
*/

#if 0
#define FRAM_CS_PIN                               GPIO_Pin_4                
#define FRAM_CS_GPIO_PORT                         GPIOA   
#define FRAM_CS_GPIO_CLK                          RCC_APB2Periph_GPIOA

#define SPI_FLASH_CS_PIN                          GPIO_Pin_0
#define SPI_FLASH_GPIO_PORT                       GPIOB
#define SPI_FLASH_GPIO_CLK                        RCC_APB2Periph_GPIOB
#endif



#define DGFLASH_CS_LOW()                        GPIO_ResetBits(SPI_FLASH_GPIO_PORT, GPIO_Pin_15)
#define DGFLASH_CS_HIGH()                       GPIO_SetBits(SPI_FLASH_GPIO_PORT, GPIO_Pin_15)



#define FRAM_CS_LOW()                           GPIO_ResetBits(SPI_FLASH_GPIO_PORT, GPIO_Pin_15)

#define FRAM_CS_HIGH()                          GPIO_SetBits(SPI_FLASH_GPIO_PORT, GPIO_Pin_15)







void FRAM_init(void);
void set_write_enable_latch(void);
void reset_write_enable_latch(void);
u8 read_status_reg(void);
void write_status_reg(u8 val);
void read_memory_code(u16 addr, u8 *buf, u16 length);
void write_memory_code(u16 addr, u8 *buf, u16 length);
void read_device_ID(u8 *buf);
void fast_read_memory_code(u16 addr, u8 *buf, u16 length);
uint8_t sFLASH_SendByte(uint8_t byte);
u8 FRAMReadWriteByte(u8 data);
void spiFlash_FRAMFlash_init(void);
void fill_FRAM_area(u16 start, u8 value, u16 length);
#endif