****************************************************************************************
****************************************************************************************
                                    AF_908 VERSION HISTORY
                                          12/09/2005
****************************************************************************************
****************************************************************************************


****************************************************************************************

VERSION 1.2d (12/27/2005)

Fixed problem of exiting AF908 "Run" mode to a freeze of "AF908 / Select Function" display.
Now (again) allows proper access of Config pushbutton from the "Select Function" display.

****************************************************************************************

VERSION 1.2c (12/09/2005)

This version fixes a bug in AF908: If PB2 or PB3 are pressed before dsp908 or ASP has been 
run, the instrument freezes and recycling the power is the only recovery. (PB2 or PB3 are 
not logically active unless dsp908 or ASP is running so that's probably why no one reported
or noticed it). It's a memory initialization bug that was introduced in AF908 and in the 
combined AA908+AF908 package. 

****************************************************************************************

VERSION 1.2b (4/25/2005)

In addition to the integration of AF908 and AA908 into a single software 
load there are some further enhancements to AF908. These are present in 
both AF908 in its "solitary" form and in the integrated version.

You must re-load any DSP programs that were previoulsy downloaded to the 
Micro908's SEEPROM. The reason being that the location were they are stored 
in the Micro908's SEEPROM has been changed. Thus any currently stored DSP 
programs will not be found by AF908. The reason for the change is to 
anticipate the future release of a version of AA908 that will allow 
scanning and saving the scan data in the SEEPROM for later uploading to a 
PC. To avoid "collisions" the DSP programs are now loaded at the top end of 
the SEEPROM's address space leaving the low end for scan data.

Backlite LCD support has been added.

The operational support when running DSP908 has been enhanced:

- Additional functions now present the current setting as the first value 
displayed when changing: Taps, Gains, Set Widths and let you hear the 
effect of the change as you dial through possible values.

There is a new method for downloading DSP programs to the Micro908. It is 
NOT recommended for use and is NOT a replacement for the current download 
mechanism. It does allow the use of an "ordinary" serial terminal program 
to download DSP programs, but it has a number of potential places to mess 
up and the exact usage depends in part on the capabilities and quirks of 
the serial terminal program. It may be of use on non-PC platforms and 
that's why it is included. So it will not be confused with the normal 
download it is locate under the PB4 "Config" menu as "Manual Download". 
Don't use it unless you really need it and understand the pitfalls. See the 
updated manual  for details if you must.

There are no changes to any of the DSP programs nor to any of the PC programs.

An updated User Manual v1.2a has been posted to the web site.

------------------------------------------------------------------------------------------------------
We will keep working on improvements, as always, and keep everyone posted. 
Thanks for everyone's support.

Let us know how this new release works for you!

73, Steve Holton N1NB
    sholton@optonline.net
    www.amqrp.org/kits/micro908/af908/af908.html

    and ...
   
    George Heron, N2APB
    n2apb@amsat.org