PiFM on pandora


Mega GP Mania
May 24, 2008
Maybe. The Pi has hardware that generates a clock pulse on a GPIO pin and you can get a radio signal by just tweaking that clock pulse ever so slightly. I don't know if the OMAP has similar capability. If it doesn't, the only way to do this would be to use the CPU to manually pulse the ping at 100Mhz. An on/off loop would need at least 2 cycles, sapping 200Mhz away from the CPU before even getting into music modulation. The timing would be almost impossible to get right.

So if the OMAP has a clock-signal-on-GPIO similar to what the Pi has then it should be easy. If not then it'd be difficult enough to simply say no.

I'll have a look at the OMAP3 documentation and see if I can find such a clock.