I've been working on a project to control some LEDs from music, with a Microchip chip acting essentially as a serial (over USB) to SPI interface (yeah I know I should probably just get an audrino board...its on my list). So I have a sketch that can generate the values I'm looking for from an audio source but the serial communication appears to not work at all.
To troubleshoot, I modified the simple serial write example and attached a port monitor to see what was going on. The part I can't get past is that sending the same characters through a terminal as with the test sketch (verified as identical with the port monitor), the hardware responds correctly to the terminal characters but ignores the ones sent with processing. I know its not a hardware problem because I have a number of VB programs that interact with it fine, so I'm thinking, does the processing serial library have any kind of handshaking defined that could be throwing things off?