Henrik. I appreciate the reply and will study it.
I don't like indented 'if then's' so don't do it as a rule.
I was trying to max out the MCP2515 by overclocking the pic to 80mhz (20mhx x 4PLL) which would have given me a 10mhz SPI clock..
But i could not get that to work. i need to look at it again on a breadboard..
I need to try a crystal instead of a resonator maybe.
The display is the old Batsocks Tellymate TTL serial to composite video chip that runs at 57,000bps input.
http://www.batsocks.co.uk/products/Other/TellyMate.htm
Thanks Peter
Bookmarks