Contents of this Disk
---------------------

README.TXT This file.

PARTS_D.TXT Bill of materials for programmer, version D.
No change from version C.
PPROG_D.P01
PPROG_D.P02
PPROG_D.P03 ORCAD schematic files for parallel programmer, version D.
The only change from version C is the addition of one wire
from U4-9 to pin 26 of the 40-pin DUT socket.

PPARTS.TXT Bill of materials for parallel interface.

PINT.P01
PINT.P02 ORCAD schematic files for parallel interface.

PPROG.LIB ORCAD library file containing required objects for
schematic files.

BLANK.DAT A test file filled with 4096 bytes of 'FF'.
TEST.DAT An ASCII test file of 8192 bytes.

CAL.BAT
BUILD.BAT Batch files to compile and link programmer software.

PC51-2.C
PC51-2.EXE Microsoft 'C' source code and executable code for version
two of the parallel programmer software for the AT89C51.
This version supports variable size program data files and
uses system-dependent software timing loops.
Compile with CAL.BAT.
PC52-2.C
PC52-2.EXE Microsoft 'C' source code and executable code for version
two of the parallel programmer software for the AT89C52.
This version supports variable size program data files and
uses system-dependent software timing loops.
Compile with CAL.BAT.
PC51-3.C
PC51-3.EXE Microsoft 'C' source code and executable code for version
three of the parallel programmer software for the AT89C51.
This version supports variable size program data files.
Write cycles are timed using fixed delays. Timing delays
are system-independent. Compile with BUILD.BAT.
PC52-3.C
PC52-3.EXE Microsoft 'C' source code and executable code for version
three of the parallel programmer software for the AT89C52.
This version supports variable size program data files.
Write cycles are timed using fixed delays. Timing delays
are system-independent. Compile with BUILD.BAT.
PC1051.C
PC1051.EXE Microsoft 'C' source code and executable code for the
AT89C1051. Write cycles are timed using fixed delays.
Timing delays are system-independent. Compile with BUILD.BAT.
PC2051.C
PC2051.EXE Microsoft 'C' source code and executable code for the
AT89C2051. Write cycles are timed using fixed delays.
Timing delays are system-independent. Compile with BUILD.BAT.
PS8252-2.C
PS8252-2.EXE Microsoft 'C' source code and executable code for parallel
programming the AT89S8252. This version supports variable
size program data files and uses system-dependent software
timing loops. Compile with CAL.BAT.
PS8252-3.C
PS8252-3.EXE Microsoft 'C' source code and executable code for parallel
programming the AT89S8252. This version supports variable
size program data files. Write cycles are timed using fixed
delays. Timing delays are system-independent. Compile with
BUILD.BAT.

XTIMER.ASM
XTIMER.OBJ Microsoft assembler code for system-independent timing
routines. This code is linked to the specified 'C' code
above by BUILD.BAT.

PID.C
PID.EXE Microsoft 'C' source code and executable code for a utility
which displays the addresses of installed parallel ports.