On Sun, Jun 12, 2016 at 01:22:26PM +1000, Matt Flax wrote: > It appears that my logic here is flawed. > From what I can tell, it isn't possible to get a suitable bit clock out of > the codec when using a 12 MHz crystal. For that reason, in my hardware I > will change crystals from 12 MHz. This looks correct the chip only has simple dividers so you won't be able to get a good audio rate clock from a 12MHz crystal. > > I just want to check ... are there any versions of this codec which output > the bit clock when in USB mode on the BCLK pin ? > Apologies I am not quite sure I follow what USB mode is in this context, and the bit clock surely always comes out of the BCLK pin. Do you simply mean a system with a clock speed that relates to the 48MHz USB clock, such as your 12MHz? Basically any part that has a PLL/FLL should work for that, for example the wm8998: http://www.cirrus.com/en/products/pro/detail/P1265.html Thanks, Charles _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
