I'll maybe try both ways and break out my logic analyzer. I get confused with the MSB/LSB stuff though. I guess the analyzer captures on the screen the first bit it sees on the left hand side of the screen and goes from there. So we'll see. I just have to think about what numbers to use to get a result I can fit my little brain around. high voltage modulators and vacuum tubes at work to microcontrollers and digital circuits at home. Maybe I should take up wood working as a hobby instead!