Dave, I am already using a DS1337 RTC in my applicaton with intention of using an interrupt from it on periodic basis to take a temperature reading and to initiate emails via the wireless module per the code I am currently trouble shooting. You can see the schematic of all this in an email I sent to Darrel Taylor which I copied you on in which I enlisted his help to find out why it is only working when a PICKIT2 is plugged in. I also included you on an email to ConnectOne techsupport and one that was direct to you regarding how you terminated the _RES_PD and MSEL connections in your application. Did you get them??