Update after last posting and some helpful feedback (and now the subject =
changed to include the :)
=20
I am trying to get PICLOADER going on a 20 MHz 16F877, and I am having =
problems downloading a program after installing PICLOADER.

I modified PICLOADER.ASM at line 78/9 to turn FULMEM on, the config line =
at 93 to have _HS_OSC rather than _XT_OSC, and at 268 to load D'125' =
rather than 25 for operation at 20 MHz. These mods seem to work, ie the =
PICLOADER program loads and comes up with its splash screen.=20

I can read to and write from the EEPROM using the PICLOADER R & W =
commands, suggesting that the serial interface is fine, but I cant =
complete uploading a program.

When I try to upload, it clears the PIC in about 30 seconds, prompts =
ready, and then I paste the .hex file from Wordpad (2kbytes). At this =
point, there is traffic on the serial line for about 15 seconds, and =
then nothing. The bootloader doesnt come back with a status, and there =
is no response to the keyboard, including hitting carriage return. When =
I disconnect the connection via Hyperterm and reconnect, Q responds with =
no user code installed, as does D.

I have ensured that there is a carriage return at the end of the hex =
file (the file is generated by the P16PRO software, from Pascal code =
generated by P2C-Plus (Baranov)), and also tried inserting extra line =
feeds at the end of each hex line. I have set up Hyperterminal as per =
the release note, with the exception that I dont see a way to ensure the =
backspace key sends 'control H'. The version of Hyperterminal is 595160, =
copyright 1995.

Bob Ammerman corrected my assembler code for the overlying program, but =
the mods dont make a difference to the operation of the underlying =
Picloader code. Dan Welch suggested using Notepad rather than Wordpad, =
in case of extra formatting characters with Wordpad. I have implemented =
these suggestions but the problem remains -- PICLOADER doesnt come back =
after uploading the code.

Any suggestions on what I should do would be appreciated.
=20
Ed Roberts
Atmospheric Research Pty Ltd

Ed Roberts
Strategic Director
Atmospheric Research Pty Ltd
61-2-6242 6883 / 0416 084 642

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