[eagle] Re: YAHOO!!!! IT WORKS!!!!

Chuck Green greencl at mindspring.com
Sun Sep 16 17:53:10 PDT 2007

Hi Jim,

The mode and address must be soldered onto the widget (jumper pads 
provided on the widget for this purpose).  It is assumed that the module 
builder would do this.  It's that assumption that should be documented.  
I say this to bring up the follow-on issue.

The module builder chooses the mode.

The address should be specified by the system administrator since the 
addresses must be unique for each module and the priority is a function 
of the address.  Module builders should give input to the system 
administrator as to what they feel their priority should be, but 
presumably only the system administrator is in a position to know the 
priority requirements of *all* modules and is therefor in a position to 
make these priority (address) decisions.


Jim Sanford wrote:
> Guys:
> There's a lesson here:   DOCUMENTATION
> Juan expected/assumed one thing, the CAN-Do! widget was something 
> else.  Other teams will go through exactly the same issue.  SO, it 
> appears we need to add some documentation to each WIDGET in terms of 
> serial number, address, and probably a handful of other things I don't 
> know about. 
> Let's learn from this experience.
> Juan, thanks to you and your team for perservering.
> Stephen, thanks for your prompt support on a short fuse.
> This kind of response and mutual support is exemplary, and what it 
> will take to get Eagle on orbit.
> Thanks & very 73,
> Jim
> wb4gcs at amsat.org
> Dave hartzell wrote:
>> Wow, this is a relief.  I'm glad it was something simple....after all
>> the hunting and pecking we did yesterday, I'm glad it was something so
>> simple.
>> I guess when the term "bus" is used, an address as probably key to
>> getting to your destination.  ;-)
>> Dave
>> On 9/16/07, Juan Rivera <juan-rivera at sbcglobal.net> wrote:
>>> All,
>>> We need to take up a collection to buy Stephen a large hero badge.  He fixed
>>> the problem and the receiver is now sitting on my bench happily receiving a
>>> signal.  The new CAN-Do module that he sent me had a different address than
>>> the old one and the old files were addressing the initialization
>>> instructions to a non-existent device.  All we have to do is change the
>>> address field in the initialization files and everything is fine.
>>> Whew!  The train of life in back on the tracks!
>>> 73 to all,
>>> Juan
>>> _______________________________________________
>>> Via the Eagle mailing list courtesy of AMSAT-NA
>>> Eagle at amsat.org
>>> http://amsat.org/mailman/listinfo/eagle
> ------------------------------------------------------------------------
> _______________________________________________
> Via the Eagle mailing list courtesy of AMSAT-NA
> Eagle at amsat.org
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