> >during the self calibration procedure the chip stops > responding to the > >SPI port at all. > > The microcontroller then interprets > >this as a status register with all bits zero including the /DRDY bit. > > Is SPI out floating, or firm low? > > IF floating you need a proper pulldown to trust it to work reliably. > Alos, if floating, another solution would be to have a pullup > instead of pulldown, and you would see DRDY state correctly. > > > /Morgan > -- > Morgan Olsson, Kivik, Sweden Err... Good point. No resistor on the board so it is either pulled or driven low in the chip. We should try a pull up resistor just to make sure huh? That would be funny as all heck wouldn't it? Finding out that the chip isn't driving that line during calibration and it was actually floating in the wind... Just happens to read low due to some PCB effect. --- James Newton: PICList webmaster/Admin mailto:jamesnewton@piclist.com 1-619-652-0593 phone http://www.piclist.com/member/JMN-EFP-786 PIC/PICList FAQ: http://www.piclist.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist