Donovan
Thanks for replying...
I have a target application baud which will talk
to my PC happily all day at 19200 on COM1. This
uses a Max232 chip, and is reliable.

I followed the bootloader instructions, but it
would seem that the bootloader code is never
getting invoked.
I am compiling using the CCS compiler, and am
targetting a PIC16F877 at 20MHz, and am using the
appropriate hex file programmed into it.  I have
tried both #org variants (for CCS), and still
nothing.

I am following these steps (may show I am doing
something stupid)!...

1) burn the bootloader code into the target pic
(dip40) using warp13 programmer.  Verifies OK
2) place pic into target board
3) connect target board to PC via known good link
4) compile target app with #org option
5) download attempt of hex file (from step 4)
using windows bootloader
6) reset processor by gounding MCLR (tried
switching power off/on too)

....The downloader just shows "searching for
bootloader" all the time.
I assume that the RS232 features of Shane's
bootloader try and talk on Xmit Pin C6 and Rx on
C7 with NO other lines for handshaking.
Shane's response was "There have been reported
problems with 20Mhz. Try a 16Mhz or 8Mhz - its the
last option." No more details
Thanks
Les


>  What
> problems are you experiencing?  What
> problems did Shane indicate were being
> reported?  It shouldn't make any
> difference, but my PIC's are DIP
> packaged and I am using ceramic
> oscillators.
>
> A 'gotcha' that got me a few times was
> programming the bootloader in and not
> setting the XTAL to HS.
>
> Regards,
> Donovan
>

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