Dear customer

Beta version 1.25 of the C3x DSK Software is posted as four relatively 
small ZIP files identifiable as B125_xxx.ZIP.  There is no fancy 
install, but but the four zips are easy to manage.  Three of the four
can be copied into a root directory and expanded with the '-d' to 
expand subdirs.  You can unzip into the old DSK directory, but this 
will overwrite old files.

The fourth is the Win32 support DLL's for the Win32 app.  You will want
to expand this in the DSK3WIN subdir expanded from B125_WIN.ZIP.  If you
have Borland 4.51 (or later?), this step may not be needed.

The included windows application is compiled for 32 bit windows (Win32)
using Borland 4.51 C++.  It can just as easily be compiled for Win16, but
would require a different set of support DLL's.  At one time, this source
would also compile using MSVC++, but has not been recently verified.

The required Win32 support DLL's will work from the application directory,
so there is no need to copy them to the \WINDOWS subdirectory.  Many other
applications install or blind copy these files to the \WINDOWS directory.
IMO, This is something to avoid in development software.

C:\MYDSK\pkunzip -d b125_src.zip    All the source files
C:\MYDSK\pkunzip -d b125_exe.zip    Just the EXE files
C:\MYDSK\pkunzip -d b125_win.zip    Combined FFT/OSC Win32 app
C:\MYDSK\DSK3WIN win32dll.zip       Borland Win32 support DLL's

The win32 application is called BEAMER3.EXE.  This was initialy to be a
beamforming demo using an FFT, but was never completed and a new name has
not yet been picked.  Check out the accuracy of Frequency  measurement.
If you hit the '5' key it will cause the AIC to loop back a self
generating a precision sine wave of Fs/10.  

The FFT itself is also new.  This FFT is a complex radix-2 REAL FFT that
no longer requires a twiddle lookup table.  A 1024 point FFT now fits in 
less memory than the orginal 512 point FFT.  Note that for a VC33 and 
this code, a 32K point FFT will fit on chip!

Sorry, but the FFT and other documentation is not yet complete.  I am
currently pre-occupied with the TMS320VC33!

Be sure to read the WHATSNEW.TXT file as there are a lot of new things
since version 1.22, 1.23 and 1.24.  For example, C source debug in DSK3D!

Best regards, Keith Larson

