Re: New to Ada..need some help regarding Binary Conversion??

[Larry Hazel <lhhazel@otelco.net>]

Paula wrote:
> Hello all,
> 
> I am new to the Ada programming language and have worked through the
> wonderful material presented on Adapower.com and I have worked through
> the Lovelace tutorial.  I was doing prototyping using File IO and have
> worked through most of the problems there. My biggest challenge is now
> I must read in a "data signal" (which is in binary, in the form of
> 16-bit words, can be over more than one word, and isn't in a file),
> convert it to decimal and apply the correct scaling data to convert it
> to engineering units, and then do the reverse (take in engineering
> units, convert to raw bus data). I can do the scaling part...no
> problem..it's the reading in (I don't understand how to get the input
> if it's not in a file or from the keyboard). A coworker suggested
> creating a big table of 16-bit binary arrays, that I could declare a
> data-type as binary (??). Any help would be appreciated.
> 
> Thanks,
> 
> Paula

This sounds like analog to digital and digital to analog converters.  You have 
to have documentation for how to input/output to these devices.  Then (depending 
on the operating system) you need device drivers, representation clauses to map 
variables to device ports, or assembly level input/output instructions to talk 
to them.

Larry