PIC16F676 + MCP2515 PICtail Demo Board - Firmware

Peter Guest #3336454
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Hello,
we have bought some MCP2515 PICtail Demo Boards to evaluate them and
then to develop a CAN interface system with the PIC16F676/677 for
our purpose on the same basis.

Now the problem:
We have downloaded the firmware - provided in the MCP2515 PICtail
Demo Board folder - from the original MicrChip website 00023R2.c
dated 2007 and other gadgets files.
Then we have compiled the supplied firmware with the MPLAB-X modern
XC8 compiler in free mode and then programmed into the Demo Board.
The Demo Board is not running - all LEDs are ON and not blinking
as in the normal state to indicate CAN activities.

When we program the supplied original HEX-file from MicrChip.com Site, 
the Demo Board is running well.

Our question:
Has anybody the same board - and if so - the suppied source files
was running without code changes???
If so - what must we do to get it to run - maybe a other compiler
or what else changes in the source?

What we have see too - the hex file is a other revision - 2005
and the source is from 2007.
Maybe here is a mistake by MicroChip


Regards . Peter
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