PROGRAMS FOR CHAPTERS 10 and 11

The DSP programs have file names of the form c1xxx.dsp, where xxx is
several letters unique to the particular program. For instance, the
FIR filtering frogram is c1fir.dsp. Details of the program assembly
and linking are discussed in the Analog Devices literature for the
EZKIT-Lite. The following DOS commands were used with the Analog
Devices DOS tools, asm21.exe and ld21.exe to assemble and link the
various c1xxx.dsp programs, all of which are only a single module.

asm21 c1xxx -2181 -l
ld21  c1xxx -a c:\adi_dsp\21xx\ezkitl\2181\dsp\ezkit_lt -e c1xxx -g -x

The asm21 assembler produces several files:
c1xxx.cde the "code" file used by the linker
c1xxx.int the "initialization" used by the linker
c1xxx.obj the "object" file used by the linker
c1xxx.lst the list file to show the assembly output in readable form.

The ld21 linker requires the ezkit_lt.ach arcitecture file along with
the three files just named. The path for the architecture file is in
the command line for the linker as:
 c:\adi_dsp\21xx\ezkitl\2181\dsp\ezkit
but this needs to be changed to the path of your .ach file.

The linker output consists of:
c1xxx.exe the EZKIT-Lite executable program.
c1xxx.map a fully readable file showing memory usage in various levels
          of detail.
c1xxx.sym the "symbol" file that is used by the DSP simulator.

Various loader programs are available, but none are included on this
CD-ROM.  The loader program supplied with the EZKIT-Lite for the
demonstration programs can be used to load the c1xxx.exe programs.

It is important to remember that the c1xxx.exe output files from the
linker are  This is NOT a DOS executable program and requires a
loader program.  A DOS command line "c1xxx" will attempt to load
c1xxx.exe as a DOS executable, which it is not, and will usually
result in the computer usually hanging until a full restart of the PC
is executed.

The Analog Devices simulator program, sim2181.exe requires the
c1xxx.exe, c1xxx.sym and the architecture file ezkit.ach.

The programs for Chaptures 10 and 11 are in the directories CHAP10
and CHAP11. For each c1xxx.dsp file there is also a c1xxx.exe file
created by the ld21 linker as described above. The contents of the
two directories are

CHAP10
  c1shell.dsp  Basic DSP structure for EZKIT- Lite
  c1shell.exe
  c1sin.dsp    Generates single sine wave at 1000 Hz
  c1sin.exe
  c1sin2.dsp   Generates 2 sine waves at 700 and 1900 Hz
  c1sin2.exe
  c1spn.dsp    Generates 1000 Hz sine wave plus Gaussian noise
  c1spn.exe
  c1fir.dsp    FIR filter coefficients
  c1fir.exe
  fir200bp.dat Part of c1fir.dsp - Band pass FIR filter coefficients
  firdsn3.bas  A QBASIC program for calculating FIR filters using
               the Kaiser window method.

CHAP11
  c1knob.dsp   Interaction with a rotary knob, switches, LCD display
  c1knob.exe
  c1tbox.dsp   Uses the c1knob to generate 2 sine waves plus noise
  c1tbox.exe
  c18.dsp      An 18 MHz I-Q transceiver for CW and USB
  c18.exe
  lp2_8.dat    Part of C18.dsp - Low pass FIR filter coefficients
  lp_5_48.dat  Part of C18.dsp - Low pass FIR filter coefficients
  bpcw1.dat    Part of C18.dsp - CW audio FIR filter coefficients
  hil_3_48.dat Part of C18.dsp - Hilbert transform for 90 degree
               phase shift. These arcoefficients for a specialized
               FIR filter.

All of the c1xxx.exe programs can be put into EPROM for loading when
the EZKIT-Lite starts operation. See the Analog Devices PROM Splitter
for details.