/*
 * File:   Flash.h
 * Author: cterndru
 *
 * Created on February 3, 2015, 2:39 PM
 */

#ifndef FLASH_H
#define	FLASH_H

#include <xc.h>

// INSTRUCTIONS FOR SPI compatible Flash memory
/*#define READ_FLASH 		0x03 // Read Memory at 25 MHz
#define HS_READ                 0x0B // Read Memory at 80 MHz
#define SEC_ERASE_4             0x20 // Erase 4 KByte of memory array
#define SEC_ERASE_32            0x52 // Erase 32 KByte block of memory array
#define SEC_ERASE_64            0xD8 // Erase 64 KByte block of memory array
#define CHIP_ERASE              0x60 // Erase Full Memory Array
#define BYTE_PROG               0x02 // To Program One Data Byte
#define AAI_WORD_PROG           0xAD // Auto Address Increment Programming
#define RDSR_FLASH 		0x05 // Read Status Register
#define EWSR_FLASH 		0x50 // Enable Write Status Register
#define WRSR_FLASH 		0x01 // Write Status Register
#define WREN_FLASH 		0x06 // Write Enable
#define WRDI_FLASH 		0x04 // Write Disable
#define RDID_FLASH 		0x90 // Read ID
#define JEDEC_ID_FLASH          0x9F // JEDEC ID read
#define EBSY_FLASH 		0x70 // Enable SO to output RY/BY# status durring AAI programming
#define DBSY_FLASH 		0x80 // Disable SO as RY/BY# status during AAI programming
*/

#define WRR                     0x01 // Write Register
#define PP                      0x02 // Page Program
#define READ_FLASH              0x03 // Read (3 or 4 byte address)
#define WRDI_FLASH              0x04 // Write Disable
#define RDSR1_FLASH             0x05 // Read Status Register 1
#define WREN_FLASH              0x06 // Write Enable
#define RDSR2_FLASH             0x07 // Read Status Register 2
#define BRRD_FLASH              0x16 // Bank Register Read
#define BRWR_FLASH              0x17 // Bank Register Write
#define RDCR_FLASH              0x35 // Read Configuration Register 1
#define BULK_ERASE              0x60 // Erase flash contents


void spi_init();
unsigned char spi_sends(unsigned char data);
void spi_write_complete(void);
void spi_erase_flash(void);
void spi_WRSR_flash(unsigned char status);
void spi_write_flash(unsigned char data, unsigned long addr);
void spi_AAI_write_flash(unsigned char data, unsigned long addr);
unsigned char spi_read_flash(unsigned long addr);


#endif	/* FLASH_H */