I'm just getting started in the micro controller world. 

I now have my msp430-gcc and msp430-gdb working.  I can
run the little led-flashing programs great.

What I want to build is a little card that will
output three different sub-audible tones,  100hz,
123hz, and another similar one.  I would like three
pins as input to select which tone to output,
then have the appropriate tone appear on the single
output pin.  I'll be putting this into an older kenwood vhf
2meter ham radio.  So I am trying to match the configuration
already indicated by the radio's wiring diagram.

I have seen some examples of PIC programming for doing
telephone DTMF touch tones.  I don't need to be that fancy.
These are only single tones, and much lower frequencies.

I think maybe I want to use timerA to generate my tones?

I'm looking for any advice on example code I can use,
or general direction I should follow.

Thanks all.

-- 
Chris Howard                                     YipYap.Com
ch...@yipyap.com                                 Estes Park, Colorado  USA
current Estes Park weather --  http://www.yipyap.com/wscurrent.html

Reply via email to