
             ON Semiconductor BelaSigna R26x Tweaker
             =======================================

The BelaSigna R26x Tweaker software allows you to perform diagnostic
operations, configure, and generate custom application EEPROM images
for BelaSigna R261 and BelaSigna R262 dual-microphone noise reduction
audio DSPs.


Installation
------------

The BelaSigna R26x software is a portable application provided in a
single zip file.  Simply unzip the archive to a folder preserving the
directory structure within the archive, and run the executable
'br26x_tweaker.exe'.

There are some pre-requisites required however, in terms of drivers
for the communications hardware you intend to use. Before executing
the BelaSigna R26x Tweaker, you will need to install the appropriate
communications drivers, which are described in more detail below.


Communications Hardware
-----------------------

In order to use the BelaSigna R26x Tweaker, you will need hardware to
communicate with a BelaSigna R261 or BelaSigna R262 device over I2C.
A Communications Accelerator Adaptor (CAA) is available from
ON Semiconductor and is the preferred method of communication. You may
also use the Aardvark I2C/SPI Host Adaptor from Total Phase.

In either case, you must first install the Communications Toolkit (CTK)
Runtime from ON Semiconductor, as well as any hardware drivers before
executing the BelaSigna R26x Tweaker.

The CTK Runtime installer is included in the archive with the Tweaker.
To install the CTK Runtime, simply execute 'CTKRuntime.msi', found in
the same folder as the Tweaker executable (br26x_tweaker.exe).

If you are using a CAA, the CAA driver should have come with your device.
If you do not have the latest version of the driver, it is available for
download from the ON Semiconductor MyON customer portal. Ask your local
ON Semiconductor support representative for the appropriate access.

If you intend on using the Aardvark I2C/SPI Host Adaptor, the driver is
available from Total Phase here:

  http://www.totalphase.com/products/aardvark_i2cspi/

You must still install the CTK Runtime as described above in order to
use the Aardvark.


Documentation
-------------

Documentation for the BelaSigna R26x Tweaker will be available soon in
the form of an Application Note available from the ON Semiconductor
website.

In the meantime, contact your local ON Semiconductor support
representative if you need assistance.


Licensing
---------

The BelaSigna R26x software is covered by the ON Semiconductor End User
License Agreement (EULA). See 'License.txt' for more details.

The BelaSigna R26x software includes third party components covered under
separate software licenses. These components and licenses are described in
'ThirdPartyLicenses.txt'.
