[WT-support] SO2R Advanced mode & LPT

marko.holmavuo at dnainternet.net marko.holmavuo at dnainternet.net
Wed Jun 1 09:51:43 CEST 2005


Hi,

> > One question: Do you already have some pin in LPT port to control
external
> > SO2R device with RX switching
> > A+A/B+B? There are one pin for Stereo mode, but would it be possible to
get
> > another one, so all WT SO2R advanced
> > features would be able to be implemented with small HW modifications in
all
> > so2r devices. I think that it would be quite easy task.
>
> Yes, that could certainly be done. Any opinion on the pin number we can
> use for?

I made an analysis about LPT ping assignments in all major logging softwares. 

As far as I know, only one extra pin is needed to implement Advanced SO2R 
features in other SO2R devices, right?

May I propose following:

When using audio switching features in WT, you have to anyway disable the band 
data or DVK switching feature because of Stereo RX pin (5 or 9). 

If user selects pin nr. 9, he/she is still able to use the normal DVK switching 
pins (2 abort,3 msg1 ,4 msg2,5 msg3,6 msg4), but band data is then missed.  

I propose that advanced switching pin would be pin nr. 8 (Advanced RX Switching 
or something like that). This way the functionality can be maximized. Other 
option is pin nr. 7. Because both are dedicated to extended DVK and I believe 
that this is only option what can be sacrified for advanced SO2R mode.

I propose to add ability to configure LPT1 Proporties to enable that feature 
also just like Active Radio or any other LPT1 feature.

When user would like to work in advanced SO2R mode the LPT configuration can be:
normal DVK + DVK/STOP + Active Radio + Stero RX (pin 9) + Advanced RX feature 
(pin 8)

Do you have any idea when such release would be released where this feature are 
included?

73
Marko OH4JFN









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