On Tue, 2011-09-27 at 08:13 -0400, V G wrote: > I'm assuming that "cat" is waiting for some carrier signal for some reaso= n. > How can I get the PIC32 to send this signal? - Or - How can I get "cat"= to > not require the carrier signal (similar to carrier-watch off in kermit)? I don't know about MacOS, but for most *nix type OSs you have to "configure" the port before sending stuff on it. Tons of code out there to do that, a quick google should point you in the right direction. TTYL --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .