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> I am developing a program in a windowed PIC14000.  It is factory
> preprogrammed with calibration data for oscillator, wdt, bandgap etc.
>
> Problem: First time I erase it I will loose the calibration data in the chip.

I looked at a object file and it looks like it is simular
to intel hex format.  A way to preserve the data might be
to read (download) theprogram on the old chip and
with a word processor remove all but that which holds
the calibration data.

Then add this data part onto the new .obj file before you
program the new chip.

Below is a .obj file of something for the Pic.
The first two characters are the number of data bytes.
Then 4 characters of address
Then maybe next 2 characters are for type?
then the data with a checksum at end.

The last line says that it is the end.

But all you would care about are the lines themselfs.
and if your data starts on a XXX0 boundry, the whole line
will contain your data.

I think each line stands by itself and they do not have
to be in order (except the last line which siginifys the end)

So this file contains data for
0000 - 0067
0200 - 022F
03FE - 03FF

It may be possible to write a simple program
for the P.C. to do this file merge.

Bill C.  bill@cornutt.com

:100000000029000000000000AF000308AE008316C6
:1000100006108312110886000000000012088600F6
:100020000000000000000000000086148316061483
:1000300083128B010B162E0883002F0803112E1933
:1000400003150900811205190034900A900A013441
:10005000011305190034900A900A900A900A02349C
:0800600010080138860003348A
:1002000064008316FF30850001308600C030810015
:1002100002308800831290308B006400811A222003
:10022000011B28203020FE309100FD3092000D2966
:0203FE000029D4
:00000001FF