Jean Daigle (jaydee++at++ATSaerospace.com)
Wed, 27 Nov 1996 20:18:30 -0500
I have had the joy and illumination of personally observing working
genlock on a hardware setup very similar to yours!
On Nov 27, 4:35pm, "Tinker, Peter" wrote:
...
} Pipe 0's vertical sync is cabled to Pipe 1's genlock in. Pipe 1's gelock out
} is cabled to Pipe 2's genlock in. Pipe 2's genlock out is terminated. A
} scope shows that Pipe 2's genlock out is getting a 60Hz pulse, as expected,
} i.e., no obvious signal problem through the pipes.
}
} Using ircombine, pipe 0's sync is set INTERNAL; pipe 1 and 2's syncs are set
} EXTERNAL.
}
} perfly -c 2
} gives a genlock warning on any and all combinations of pipes.
...
}-- End of excerpt from "Tinker, Peter"
Have you installed the IRIX 6.2 "iR 2nd release" patch 1355? That's
what did it for me.
I think the relevant sync output on pipe 0 is the H/C for channel 0,
rather than the vertical sync.
We used the commands below to enable genlocked video. The
3++at++1280x1024_60g.cmb file is just like the standard non-"g" version
except that under "global settings" INTERNAL sync is scratched
out and EXTERNAL is written in in crayon.
setenv DISPLAY :0.0
/usr/gfx/ircombine -target :0.0 -destination eeprom -source file 3++at++1280x1024_60.cmb -global syncsource=INTERNAL
/usr/gfx/ircombine -target :0.1 -destination eeprom -source file 3++at++1280x1024_60g.cmb -global syncsource=EXTERNAL
/usr/gfx/ircombine -target :0.2 -destination eeprom -source file 3++at++1280x1024_60g.cmb -global syncsource=EXTERNAL
/usr/gfx/stopgfx
/usr/gfx/startgfx
Your setup sounds fine otherwise. We also daisy-chained the "swapbuffer
ready" outputs together for good luck.
Speaking of which, best of same to you!
Regards,
Jean Daigle.
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