...
The Eyetech isnt automatic ... you will have to switch manual.
Still sold by AmigaKit for arround €60,-
http://amigakit.leamancomputing.com/catalog/product_info.php?cPath=50&products_id=565Javosoft One ... no entry on Amiga Hardware Database, same on Google.
Retina V-Code Switch is limited to the V-Code Module of the Retina.
The V-Code is converting the Retina Image to S-VHS and Composite-Video.
The V-Code Switch is an Extension for the Extension (Sandwitch) for the Retina.
And it works only with 15kHz Modes and needs min. Retina Software V2.2
But for your information ... I allready played with this idea.
Jens also gave me the H&V-Sync hint.
You can see a separate 10pin header on the special Radeon-Switch (next to the extra manual switch connector).
http://www.a1k.org/forum/showpost.php?p=302777&postcount=1 (last picture)
They are delivering H&V-Syncs, Vcc, GND and the Select-Line.
Specialdesign for prototyping this way ... played with the idea of a Maxim-IC, but it is EOL and I dropped the Idea.
On the other side my software is working like CGFX and P96 did it.
I had the chance to talk with Frank Mariak (CGFX) on a PowerDev-Meeting and the way I controlled the switch is identical to the CGFX-way for Cards with inbuild-switches.
We were snooping the same systemfunction ... the only difference is, that Voodoos, CVPPCs, Radeons didnt have a separate signal line for a switch signal.
So I had to take a signal from the CIA 8520 for this.
And the best choose seems to be the CTS-Signal from the Serial-Port, but it is also possible to use the Select-Line from the Parallel-Port.
But I think that there are more Amigas with parallel printers out there, than Amigas with serial modems ... thanks to LAN and DSL.