[altusmetrum] TeleMini - interface header?
bts-rockets at bluefx.com
Tue Mar 27 11:43:57 MDT 2012
Thanks much Keith. I may wind up using TeleDongle, and bit-banging would
not be too bad if I can figure out the appropriate places to deal with it
in your source code. My trouble with TeleMetrum is that I have a hard time
flying a $350 piece of hardware when all the other components including the
motor load cost me half that. Just too much on the line for my wallet.
You guys have an awesome set of products going, thanks for making them Open
On Mon, Mar 26, 2012 at 6:31 PM, Keith Packard <keithp at keithp.com> wrote:
> <#part sign=pgpmime>
> On Sun, 25 Mar 2012 20:25:25 -0600, Bryan Schmidt <bts-rockets at bluefx.com>
> > What are the four holes on the middle of the TeleMini? They look like
> > might be for a CMOS level serial header.
> They're actually the programming interface (we have to get bits onto the
> chip somehow...)
> > If so, can they be used to reprogram the TI SOC?
> It's the same pin-out as the Debug connector on TeleDongle and
> > If so, is it theoretically possible for me to modify the firmware to
> > accept serial input data and transmit that data to the ground?
> Those two pins are just general GPIOs, not a serial port, so getting
> data into them would be a bit tricky unless you were willing to bit-bang
> I2C or SPI.
> > I am interested in a radio link
> > for my own electronics projects, but the RF part doesn't really interest
> > me. X-Bees and so on do not have the range and very low power
> > that TeleMetrum products do. And since i need deployment control anyway,
> > TeleMini seems like its worth considering.
> TeleMini doesn't have the wires necessary -- the board is just too
> small. Both TeleMetrum and TeleDongle have a SPI interface
> available. There's even support for companion boards in the default
> TeleMetrum firmware.
> So, if you need companion port support *and* ejection control, you can
> use TeleMetrum. If you just need an RF link, you could fly a TeleDongle,
> if you were willing to bodge the power connection
> together. TeleMini is just too tiny to have the necessary connectors
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the altusmetrum