[Elecraft] KDSP2 development: How 'open source' is the code?

[Eugene Balinski]

Andrew,

   I heartily agree. Those would be very useful changes and
would add to the utility and convenience of the K2.  It
would also "refresh" the K2 and confirm Elecraft's
 commitment to the K2. 

   I also hope that there will be a clean interface to the
KPA-500 as well.

73
Gene K1NR

K2 6XXX
On Tue, 15 Feb 2011 09:38:17 -0500
 Andrew Moore <andrew.nv1b at gmail.com> wrote:
> I recently acquired a KDSP2 from a fellow list member,
> and would like to do
> some KDSP2 development - ideas include
> 
> - implementing a continuously-variable bandwidth DSP
> filter (like on K3) by
> interfacing to an external rotary encoder
> - implementing APF
> - simplifying the user interface (fewer
> pushbuttons/menus)
> - using external rotary encoder to vary noise reduction
> paramters
> - ditch RTTY/SSB support, preserve RTC support
> 
> I don't want to get into a debate about which features
> you'd like to see
> (everyone's different) - this is probably just a one-off
> project for now,
> for myself.
> 
> What I'm wondering is given the appropriate development
> tools, how much of
> the KDSP2 code can be rewritten?  Do we have access to
> only the the shapes
> of the filters, for example, or is it possible to take
> over the KDSP2 and do
> external I/O, write functions, etc. as if it's an
> embedded system? So as not
> to reinvent the wheel, do we have access to code that's
> already been written
> for AuxBus communication, startup/init, routines to read
> pushbuttons, etc.?
> 
> If I do custom coding like this, how does it "hook" into
> the K2 for button
> presses and display stuff -- is this where the AuxBus
> comes in? Is there
> counterpart code inside the K2 that needs to be written,
> or is there some
> sort of API that I'd go through for button reads /
> display updates / etc?
> 
> Help from anyone who has been this route would be
> appreciated --
> recommendations for tools, description of K2/KDSP2
> architecture, etc...  I
> understand Lyle KK7P has loads of knowledge about this,
> and I've
> communicated with him some, but I've trying to give him
> some elbow room
> until he's got more availability in a few weeks.
> 
> Thanks,
> --Andrew, NV1B
> ..
>
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