AS7265X datasheet(48/64 Pages) OSRAM

48 / 64 page

ams Datasheet

Page 47

[v1-04] 2018-Jul-09

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AS7265x − Detailed Description

ATFWS

Tests the checksum

on the non-active FW

partition and, if

correct, switches

active partition. This

is a toggle and used

to toggle between

the 2 FW partitions.

Note: The first 5 bytes

in page 0 are not

touched. It is only a

temporary switch

and must be used to

check the new

firmware whether the

communication

works!

ATFWL

This command locks

the current firmware

to starts on power

cycles. It rewrites the

first five bytes in

page0!

ATFWC

This command gives

information about

the current firmware

state

Bit0 - Checksum of

non-active firmware

Bit1 - Error occurred

Bit2 - Bank 1 active

Bit3 - Not used

Bit4 - Current

firmware is locked

Bit5 - 56kBytes

transferred

Bit6 - Not used

Bit7 - Firmware

update active

ATFWA

Only for backward

compatibility to

support old firmware,

update mechanism.

Always returns with

OK. Because of flash

devices, it is not

possible to increment

the address

separately (page

erase necessary!)

Commands

Direction

Description

Format

Value Range

Default

AS7265X 数据表(PDF) 48 Page - OSRAM GmbH

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