Netbootloader vmp3 – Kontron VMP3 User Manual

Page 110

NetBootLoader

VMP3

Page 5 - 26

ID 29230, Rev. 01

29230

.01.UG.VC.050727/091440

P R E L I M I N A R Y

DESCRIPTION:

FLASH memory can only be erased sector-wise. If an image is
programmed to a certain offset with the “-o” option, at least this
sector (and maybe one or more of the following sectors depending
on the size of the image) will be erased. The “-k” option can be used
to retain the surrounding data, however, this slows down the
operation significantly.

To achieve fast programming of parameter images without
destroying other FLASH contents, the data should be placed at a
sector boundary and the sector(s) must not contain any other data or
executable images. If organized this way, use of the “-k” option can
be avoided.

Note: The “lf” command cannot be used to program the NetBootLoader.

USAGE:

Program FLASH from data buffer and add CRC and image length
(Image ID = 0 is assumed)

COMMAND / RESPONSE (none):

Program FLASH from visible address at 0x87000000 for length of
0x123456

COMMAND / RESPONSE (none):

lf -m=87000000 -l=123456

Program FLASH from data buffer to offset 0xF4240 and retain adjacent
FLASH contents

COMMAND / RESPONSE (none):

lf -o=f4240 -k