[aprssig] Si1000 direct modulation mode

[Greg Clark]

Hey Jason,

that's cool, I'll have to take a look!

But my problem is really trying to get the pins routed properly between the
8051 controller and the EZ-radio inside the Si1000

Greg

On Wed, Oct 17, 2012 at 3:18 PM, Jason Rausch <jason at ke4nyv.com> wrote:

> Greg,
>
> The YagTracker (http://www.rpc-electronics.com/yagtracker.php) uses an
> SI3000 codec IC for doing both generating and decoding 1200 baud packets.
>
> Jason Rausch - KE4NYV
> RPC Electronics, LLC
> www.rpc-electronics.com
>
> --- On *Wed, 10/17/12, Greg Clark <k7rkt at bigredbee.com>* wrote:
>
>
> From: Greg Clark <k7rkt at bigredbee.com>
> Subject: [aprssig] Si1000 direct modulation mode
> To: "TAPR APRS Mailing List" <aprssig at tapr.org>
> Date: Wednesday, October 17, 2012, 5:54 PM
>
>
> 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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