Hello,

Has anyone attempted to do an IRDA data transfer with a PIC?  I am
working on an application where a PIC will be powered by two coin cells.
 An IR LED will provide data transmission to a handheld device.   The
IRDA  receivers look interesting as they do not seem to require a
modulated carrier like TV remotes.  IRDA is limited to 1meter and my spec
is only 6 inches so distance is not a problem.  My main problem on
reception is signal level variations.  I am hoping that the AGC circuit
in the IRDA receiver will take care of this.  I could build a receiver
with AGC out of some opamps, but I don't have the time to fuss with it.

Has anyone seen a detailed example of the IRDA waveform?  I know it is a
NRZ inverted format, but I am fuzzy on the START and STOP bits.  Since
this will be a closed system, I do not have to fully follow the spec.  I
just need to be close enough that the IRDA parts will operate in my
devices.

Thanks for your help.

 ----- Steve