From: Michael B. <mic...@gm...> - 2011-06-02 23:59:15
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Hi All, I'm trying to figure out how to get NTSC Composite out from the Overo Earth Gumstix. So far I've managed to get a ugly signal out... I noticed that the TI user guide mentions that the TV_OUT signals should be have a feedback through an external resistor to TV_VFB*. I was wondering if the TV_VFB1 and 2 signals are exposed somewhere on the Gumstix? Is there already a resistor on the gumstix which feedback the TV_OUT signals or is there a resistor which is currently DNP'd? Thanks in advance for any assistance. Michael |
From: Rex J. <wre...@gm...> - 2011-06-15 21:19:23
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Hi Michael mbieniek wrote: > > I'm trying to figure out how to get NTSC Composite out from the Overo > Earth > Gumstix. So far I've managed to get a ugly signal out... I noticed that > the > TI user guide mentions that the TV_OUT signals should be have a feedback > through an external resistor to TV_VFB*. > Were you able to resolve this? I'm facing the same problem on an Overo Water--I can get an ntsc signal but it's noisy. It seems pointless to expose the tv_out signals unless the feedback resistors are in place, but I currently have no better explanation for my lousy signal. Thanks, Rex -- View this message in context: http://old.nabble.com/TV_VFB1---TV_VFB2---Video-Encoder-Feedback-Signals-tp31761906p31855305.html Sent from the Gumstix mailing list archive at Nabble.com. |
From: Michael B. <mic...@gm...> - 2011-06-17 16:05:30
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Hi Rex, Looking at the GumStix, I don't see any feedback path on the Gumstix itself and since there is no pin on the J1 connector - I don't think the signals feedback signals are exposed. I think this is why the Gumstix site has a "for future use" label beside the TV_OUT signals. If anyone can prove me wrong - that would be great. -Michael On Wed, Jun 15, 2011 at 5:19 PM, Rex Jameson <wre...@gm...> wrote: > > Hi Michael > > > mbieniek wrote: > > > > I'm trying to figure out how to get NTSC Composite out from the Overo > > Earth > > Gumstix. So far I've managed to get a ugly signal out... I noticed that > > the > > TI user guide mentions that the TV_OUT signals should be have a feedback > > through an external resistor to TV_VFB*. > > > > Were you able to resolve this? I'm facing the same problem on an Overo > Water--I can get an ntsc signal but it's noisy. It seems pointless to > expose > the tv_out signals unless the feedback resistors are in place, but I > currently have no better explanation for my lousy signal. > > Thanks, > Rex > -- > View this message in context: > http://old.nabble.com/TV_VFB1---TV_VFB2---Video-Encoder-Feedback-Signals-tp31761906p31855305.html > Sent from the Gumstix mailing list archive at Nabble.com. > > > > ------------------------------------------------------------------------------ > EditLive Enterprise is the world's most technically advanced content > authoring tool. Experience the power of Track Changes, Inline Image > Editing and ensure content is compliant with Accessibility Checking. > http://p.sf.net/sfu/ephox-dev2dev > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |