[ICOM] Help with ICOM and Visual Basic for the CI-V control system

[Ekki Plicht (DF4OR)]

On Saturday 19 May 2007 04:42, John Hagle wrote:
> I have been successful in writing software to read the operating
> frequency and mode, as well as to set the frequency and mode on my Icom
> 735, Icom 275 and Icom R7000. Either individually or together.
>
> When I try to combine both computer operations at the same time I seem
> to be getting conflicts on the data bus. I watch the flow of characters
> and see unpredictable results.

Hello John,
as Dave already pointed out, you should wait for the response from the rig 
before issueing the next command. 

An alternative for frequency and mode/filter would be to use the commands $00 
and $01. Those are the only commands which do not yield a reply from the rig, 
allowing for faster (but unconfirmed) updates of freq/mode/filter. All other 
CI-V commands will effect a reply from the rig.

Maybe my CI-V website is helpful for this:
http://www.df4or.de/civ/

73,
Ekki, DF4OR