flash.c File Reference

MEGA FLASH DRIVER.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include <stdint.h>
#include "interrupt.h"
#include "compiler.h"
#include "parts.h"
#include "flash.h"
#include "sysclk.h"
#include "status_codes.h"

Functions
void	flash_erase_page (uint32_t page_number)
void	flash_fill_page_buffer (uint32_t flash_addr, uint16_t length, uint8_t *data)
void	flash_program_page (uint32_t page_start_addr)
void	flash_read (uint32_t read_addr, uint32_t len, uint8_t *ret_buf)
	Reads data from the flash memory. More...
void	flash_write (uint32_t flash_addr, uint32_t length, uint8_t *data)
	Writes data to flash location : Performs all activities like filling the page buffer,erasing the flash page and pushing the data to the appropriate page address. More...

void flash_erase_page

(

uint32_t

page_number

)

References cpu_irq_restore(), cpu_irq_save(), EEPROM_BUSY_WAIT, ENABLE_RWW_SECTION, FLASH_ERASE, and SPM_BUSY_WAIT.

Referenced by nvm_page_erase().

void flash_fill_page_buffer	(	uint32_t	flash_addr,
		uint16_t	length,
		uint8_t *	data
	)

References FLASH_PAGE_FILL, and PGM_READ_BYTE_FAR.

Referenced by flash_write().

void flash_program_page

(

uint32_t

page_start_addr

)

References cpu_irq_restore(), cpu_irq_save(), EEPROM_BUSY_WAIT, ENABLE_RWW_SECTION, FLASH_ERASE, FLASH_PAGE_WRITE, and SPM_BUSY_WAIT.

Referenced by flash_write().

void flash_read	(	uint32_t	,
		uint32_t	,
		uint8_t *
	)

Reads data from the flash memory.

Parameters

read_addr	Address in the Flash to be read
len	Number of bytes to be read
ret_buf	Pointer to the location of the read data

References cpu_irq_restore(), cpu_irq_save(), and PGM_READ_BYTE_FAR.

Referenced by flash_write(), nvm_read(), and nvm_read_char().

void flash_write	(	uint32_t	,
		uint32_t	,
		uint8_t *
	)

Writes data to flash location : Performs all activities like filling the page buffer,erasing the flash page and pushing the data to the appropriate page address.

Parameters

flash_addr	Flash address to be written
length	Number of bytes to write
data	Pointer to data location

References flash_fill_page_buffer(), flash_program_page(), and flash_read().

Referenced by nvm_write(), and nvm_write_char().