On Tue, 20 Jul 1999, Developpement Tours wrote:
> Hello,
>
> I want to drive the IR led directly, by-passing the IrDA layer. 2 bits
> in "J" register of 68328 seem to be relevant to this purpose. When I
> write in this register nothing come out of the led (i.e. I tried to
> generate long pulses).
>
> Does someone know something about this ?
I don't think you can do this. Otherwise you could simply set a break
condition and leave the LED on, and this doesn't happen (I've tried).
But there appears to be some AC coupling in the circuit, so it will only
go on for so long. You might try sending a series of pulses though - it
will flash fast, but you may get it to go at a usable frequency.
