Byron,

Thanks for the information and the offer.  I'm afraid I
didn't realise that the Beseen message board service was
closing down.  It was still there when I sent my previous
message in this thread.  Unfortunately, the baord has gone
now.  A bit of a shame really as I don't have a copy of any
of my postings.  Sigh ...

Jai,

Sorry to hear about your problems.  The most likely cause
is that the PIC is not going into programming mode.  It's
one thing knowing the problem, it's quite another to work
out a solution.  I'm sure Byron has taken you through all
the most likely cures.  You could try software other than
FPP.  Both Bonny Gijzen's IC-PROG and Nigel Goodwin's
WinPicProg should work.  Indeed, I think there are some
messages about using these programs with the TLVP hardware
on Byron's message board.  If you really want to try the
DOS version of FPP here's how to get it to work with the
Byron's TLVP:

    fppdos -f628 -h10:1 file.hex

The -h switch sets the hardware and consists of two fields
separated by a ':', here 10 means TLVP and 1 means LPT1.
The -f switch is used to set the flash memory limits and
-f628 establishes the correct values for a 16F628.
Better still, write a batch file, called tlvp.bat say,
containing these two lines:

@echo off
fppdos -f628 -h10:1 %1 %2 %3 %4

then you can program your PIC using the command:

tlvp file.hex

This makes it easy to add other command line switches.  For
example:

tlvp -n file.hex

will program without trying to read the PIC as it goes; and

tlvp -q

will enter debug mode to check your hardware (hit enter to
to go on to the next test).

If you disable the GUI with the -w0 switch, FPP can also be
run from the command line in the same way as FPPDOS.  To try
this out just replace "fppdos" with "fpp -w0" in the
instructions given earlier.

There are a couple more PICLIST messages describing the command
line switches of FPP (and FPPDOS).  See the archive (user: piclist,
password: piclist) for the thread starting with Paul Gaastra's
message:

http://www.infosite.com/~jkeyzer/piclist/2002/May/0792.html

Hope that helps.

David

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