Not sure if this is what you need, but I dont remember having issues with the LCD, however the 12MHz clock (and its harmonics) feeding the HDMI was quite troublesome. If you dont need hdmi, you can disable CLKOUT1 (XDMA_EVENT_INTR0) by default by setting SYSBOOT[5] low. If you do need it, then you may need to think of a better way of feeding the hdmi clock. HTH, Gaurav
On Friday, September 22, 2017 at 5:59:16 AM UTC-5, Lee wrote: > > I am currently trying to get a BeagleBoneBlack to comply with Class B > Radiated Emissions levels. > I am seeing noise spikes at various harmonics which I believe are > originating from the LCD PCLK running at approx. 38MHz. > These are spikes are at 307, 345, 384, 422, 460, 499, 537MHz, etc. and are > at or above the limit for Class B emissions. > Has anyone else managed to solve this problem and limit the harmonics > propagating through the system? > Thanks. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/6fbf8719-94ae-48be-adb1-26a02c7524b5%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
