From: Dave Hylands <dhylands@gm...> - 2008-03-03 17:57:10
> I'm trying to figure out a way of interfacing an ADIS16354 device to my
> Verdex/Robostix combo.
> It seems that :-
> 1) The SPI lines are not available in a header (Verdex or Robostix)
> 2) The Verdex *must* be the master
> 1) Do I have to solder directly to the pins (10 through 13) on ATMEGA128 on
> the Robostix.
Yes - or use a roboaudiostix, which does have a header for the SPI pins.
This page shows the pin locations on the robostix:
> a) How do I select the ADIS16354 as the slave and not the
Use a gpio line. Unfortunately, there aren't many GPIO lines available
(from the gumstix) on the robostix board. On the roboaudiostix
> b) Do I then read from the ADIS16354 on the Verdex (as
> master) and the write the values to the Robostix as slave? (Quicker than
You could also just bit-bang it from the robostix. This can be done
pretty quickly. How are the samples going to be used? Do they need to
go to the robostix? or just to the gumstix?
> 2) Bit Banging is slow and I need all the processing power I can get hold
It's only slow on the gumstix, not on the robostix.
> 3) Is it possible to use the hirose and create a 'breakout' and disconnect
> the Verdex from the SPI allowing the Robostix to be master?
You could use a tweener and hack it up. It has all of the hirose
connections available as vias which can be soldered to/cut, etc.
Vancouver, BC, Canada