bmp_flash.c File Reference

Flash routines for BMP LPC1768. More...

#include "lpc17xx.h"
#include "bmp.h"

Enumerations
enum	bmp_lpc_flash_command { FLASH_PREPARE = 50 , FLASH_COPY = 51 , FLASH_ERASE = 52 , FLASH_SERIAL = 58 }
	(Subset of) commands that can be passed to lpc_iap() More...

Functions
uint32_t	is_blank (const void *buf, uint32_t len)
	Check if an area of memory is blank (filled with 0xFF)
uint32_t	flash_sector (uint32_t addr)
	Convert flash address to sector number (LPC17xx specific)
uint32_t	flash_erase (uint32_t start, uint32_t end)
	Erase sectors given start and end (byte) addresses.
uint32_t	flash_write (uint32_t addr, uint32_t length, const uint32_t *buffer)
	Write to flash from supplied buffer. Only writes one sector.

Detailed Description

Flash routines for BMP LPC1768.

Copyright

© The University of Manchester - 2013-2015

Author

Steve Temple, APT Group, School of Computer Science

Enumeration Type Documentation

bmp_lpc_flash_command

enum bmp_lpc_flash_command

(Subset of) commands that can be passed to lpc_iap()

Enumerator
FLASH_PREPARE	Flash prepare.
FLASH_COPY	Flash copy.
FLASH_ERASE	Flash erase.
FLASH_SERIAL	Flash get serial number.

Function Documentation

is_blank()

uint32_t is_blank	(	const void *	buf,
		uint32_t	len
	)

Check if an area of memory is blank (filled with 0xFF)

Parameters

[in]	buf	The address of the area of memory
[in]	len	The size of the area of memory, in bytes

Returns

True if all bytes are 0xFF, false otherwise

flash_sector()

uint32_t flash_sector

(

uint32_t

addr

)

Convert flash address to sector number (LPC17xx specific)

Sectors 0..15 are 4096 bytes and sectors 16..29 are 32768 bytes

Parameters

[in]

addr

Address in flash

Returns

Sector number

flash_erase()

uint32_t flash_erase	(	uint32_t	start,
		uint32_t	end
	)

Erase sectors given start and end (byte) addresses.

Parameters

[in]	start	Starting address
[in]	end	Ending address

Returns

Result code

flash_write()

uint32_t flash_write	(	uint32_t	addr,
		uint32_t	length,
		const uint32_t *	buffer
	)

Write to flash from supplied buffer. Only writes one sector.

Parameters

[in]	addr	byte address in flash
[in]	length	number of bytes to write
[in]	buffer	data to write

Returns

Result code