No oled no noise? with oled noise but comming from the board. Could it be the connector?
On Fri, 2007-09-14 at 14:53 -0400, DJ Delorie wrote: > > The OLED has noise on it 0.5V. What frequency? > > Line redraw noise is about 7.8khz, with the waveform dependent on > what's on the screen. That's the high pitched whine portion. > > 5.5ms of that noise, followed by 1.5ms of quiet, about 140Hz vertical > refresh. That's the buzzing portion. > > > The switchers are opporating at 150KHz. > > > > What frequency is the buzzing? > > Audible :-( > > > Could a capacitor be humming like a tunning fork with respect to one or > > more of the noise signals? > > I've tried removing, and changing, the bypass cap on that supply rail. > No change. > > Hmmm... I can try tweaking the refresh period. As soon as my son is > done playing video games with my laptop. > > > _______________________________________________ > geda-user mailing list > [email protected] > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
