[aprssig] Si1000 direct modulation mode

[Greg Clark]

I'm trying to make my Si1000 development board  transmit direct tones with
the hope of being able to generate APRS data packets.

has anyone tried this?  I'm trying to modify the TxTone example and toggle
one of the output ports at 1200 hz and route it to one of the GPIO pins
that's setup for direct modulation. I do see the I/O pin toggling, however
all I get is a constant carrier, no tone.

Has anyone else done this?

Greg K7RKT
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