Thanks for the help. Im assuming that I can upload without the computer if the sketch is loaded on the chip on the Duemilanove by pressing the "upload" button on the ISP? Without the bootloader?
And I also assume that in order to use the Duemilanove again Ill have to change the "upload.using" parameter back to "bootloader?
I am an old audio guy (35 years) so my focus is analog, although I have used digital logic many times before. My first steps into micrcontroller programming.
I am designing an incoming inspection tester for audio matching transformers, using the ATMega to produce a PWM 1kHz sine wave and measuring the impedance of a transformer tap to verify adherence to spec.
Im having a blast with Arduino. I appreciate the help. Novices, eh? LOL!!!