300 Hz = 300 Baud in computers, and today, I think 300 baud is the absolute lowest for serial port transmission.
But, now, I'll change it to 115200 Baud, just because I think what a counter does, when the frequency plays with the clock is actually divide the frequency by 2, 3, 8, etc.
I am using a 2 transistor astable multivibrator to generate my pulse. What I need to know is what resistor value and what capacitor value do I need to make 115200 Hz dead on?
and zach, I dont require audio output. My goal here is to autodetect a serial port speed up to 115200, and use that speed.