Sorry to get off the PIC topic, but does anybody have experiece with DSP chips? Preferably Analog Devices 21xx family or TI's TMS320Cxxx family. I could use so me tips. Also, if anybody is interested in DSP check out this website and e-mail me with comments and suggestions. Thanks in advance for your time. www.eepatents.com/probe Steve Kosmerchock Engineering Technician E-MAILme at www.steve.kosmerchock@celwave.com