flash_storage.c File Reference

#include "flash_storage.h"
#include "afe_calibration.h"
#include "pqlib_example.h"
#include "afe_config.h"
#include "ade9430.h"
#include "flc.h"
#include "icc.h"
#include "mxc_device.h"
#include "mxc_delay.h"
#include <stdio.h>
#include <string.h>

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Macros
#define	FLASH_CAL_PAGE_ADDR   ((MXC_FLASH_MEM_BASE + MXC_FLASH_MEM_SIZE) - (2 * MXC_FLASH_PAGE_SIZE))
#define	FLASH_CAL_BACKUP_ADDR   ((MXC_FLASH_MEM_BASE + MXC_FLASH_MEM_SIZE) - (1 * MXC_FLASH_PAGE_SIZE))
#define	CRC32_POLYNOMIAL   0xEDB88320

Functions
uint32_t	flash_calculate_crc32 (const void *data, uint32_t len)
	Calculate CRC32 for data.
int	flash_storage_init (void)
	Initialize flash storage.
int	flash_storage_remove (void)
	De-initialize flash storage.
bool	flash_storage_is_initialized (void)
	Check if flash storage is initialized.
int	flash_read_calibration (FLASH_CALIBRATION_DATA *data)
	Read calibration data from flash.
int	flash_write_calibration (const FLASH_CALIBRATION_DATA *data)
	Write calibration data to flash.
int	flash_erase_calibration (void)
	Erase calibration data from flash.
bool	flash_has_valid_calibration (void)
	Check if valid calibration data exists in flash.
int	flash_load_and_apply_calibration (void)
	Load calibration from flash and apply to AFE registers.
int	flash_save_calibration_channel (uint8_t channel)
	Save current calibration context to flash for specified channel.
int	flash_save_all_calibration (void)
	Save all calibration data to flash.
const char *	flash_status_to_string (FLASH_STATUS status)
	Get status string for flash status code.

Macro Definition Documentation

CRC32_POLYNOMIAL

#define CRC32_POLYNOMIAL   0xEDB88320

FLASH_CAL_BACKUP_ADDR

#define FLASH_CAL_BACKUP_ADDR   ((MXC_FLASH_MEM_BASE + MXC_FLASH_MEM_SIZE) - (1 * MXC_FLASH_PAGE_SIZE))

FLASH_CAL_PAGE_ADDR

#define FLASH_CAL_PAGE_ADDR   ((MXC_FLASH_MEM_BASE + MXC_FLASH_MEM_SIZE) - (2 * MXC_FLASH_PAGE_SIZE))

Function Documentation

flash_calculate_crc32()

uint32_t flash_calculate_crc32	(	const void *	data,
		uint32_t	len )

Calculate CRC32 for data.

Parameters

data	- Pointer to data
len	- Length of data in bytes

Returns

CRC32 value

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flash_erase_calibration()

int flash_erase_calibration

(

void

)

Erase calibration data from flash.

Returns

FLASH_STATUS_OK on success, error code otherwise

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flash_has_valid_calibration()

bool flash_has_valid_calibration

(

void

)

Check if valid calibration data exists in flash.

Returns

true if valid data exists, false otherwise

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flash_load_and_apply_calibration()

int flash_load_and_apply_calibration

(

void

)

Load calibration from flash and apply to AFE registers.

Returns

FLASH_STATUS_OK on success, error code otherwise

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flash_read_calibration()

int flash_read_calibration

(

FLASH_CALIBRATION_DATA *

data

)

Read calibration data from flash.

Parameters

data	- Pointer to calibration data structure

Returns

FLASH_STATUS_OK on success, error code otherwise

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flash_save_all_calibration()

int flash_save_all_calibration

(

void

)

Save all calibration data to flash.

Returns

FLASH_STATUS_OK on success, error code otherwise

flash_save_calibration_channel()

int flash_save_calibration_channel

(

uint8_t

channel

)

Save current calibration context to flash for specified channel.

Parameters

channel

- Channel to save (0=A, 1=B, 2=C)

Returns

FLASH_STATUS_OK on success, error code otherwise

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flash_status_to_string()

const char * flash_status_to_string

(

FLASH_STATUS

status

)

Get status string for flash status code.

Parameters

status

- Flash status code

Returns

Status string

flash_storage_init()

int flash_storage_init

(

void

)

Initialize flash storage.

Returns

FLASH_STATUS_OK on success, error code otherwise

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flash_storage_is_initialized()

bool flash_storage_is_initialized

(

void

)

Check if flash storage is initialized.

Returns

true if initialized, false otherwise

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flash_storage_remove()

int flash_storage_remove

(

void

)

De-initialize flash storage.

Returns

FLASH_STATUS_OK on success, error code otherwise

flash_write_calibration()

int flash_write_calibration

(

const FLASH_CALIBRATION_DATA *

data

)

Write calibration data to flash.

Parameters

data	- Pointer to calibration data structure

Returns

FLASH_STATUS_OK on success, error code otherwise

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