Sweet

Thanks Henrik. I had already placed an order on Element 14 for two pieces as a precautony measure. They were quoting 2-3 days delivery so I hope to have the chips in time for the weekend.

I will study up on the datasheet and try to sort out what "critical" registers need to be set for my application. This sort of thing is not rely my forte so any hints or recommendations wold be greatly appreciated. It took me ages to work out tht the comparitors needed to be disabled on the '684 to make it work!

Cheers
Barry
VK2XBP