On Mon, Jun 04, 2001 at 03:56:49PM -0400, Jeff DeMaagd wrote:
> Bootloaders were discussed in a thread a couple weeks ago, as a way for a
> PIC to program itself using a serial port in the circuit.  The guy operating
> Bootload.com mentioned them but so far hasn't responded to a question I had.
>
> I would like to be able to program using a bootloader board's serial port,
> but I would like to use it as a general data communication port when not
> programming the chip.
>
> Is there such a bootloader and board available?  It would really help.

It's not exactly what you're looking for, but take a look at Wouter's wloader:

http://www.xs4all.nl/~wf/wouter/pic/wloader

The reason that it's not exactly what you're looking for is because wloader
uses a separate I/O pin for the serial interface. This completely frees up
the UART for normal use.

In addition it's real simple to actually bit bang serial data out of the
wloader serial port. So you can get an extra serial debugging channel that's
separate from the normal UART.

The last thing is that there are serial loaders that are not Windows based
such as linwload for Linux:

http://www.ise.pw.edu.pl/~wzab/linwload/linwload.html

This allows me to program my PICs from my Linux box.

Hope this helps,

BAJ

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