joelha;597447 Wrote: > Hi John, > > Here's what I'm showing (below). > > Momentary freq = 44103 Hz (0x2c.1a70) > > Endpoint: 1 OUT (ASYNC) > /QUOTE] > > The momentary freq being 44103 means the asynchronous interface is > working, the clock on the Touch is a little slower than the clock in > the DAC. The Dac has told the driver to speed up the data rate > slightly. > > This seems to indicate that the appropriate communication is happening. > > > I would put the Touch into a state that is known to cause the ticks > etc. Repeatedly look at the momentary freq and see if it changes when > you have a pop or click. > > The overall upshot of this is that it seems to be working, the driver > seems to be properly communicating with the DAC. > > The next test I would run is to try files at different sample rates and > see if there are any different behaviors. In particular I would try the > same song at 44.1 and 48. This make sure you use the two different > crystals. If you are running into an issue with one of the crystals be > fairly far away from the frequency the Streamer you MIGHT run into a > problem with the feedback system not being able to lock on fast enough. > By using 44.1 and 48 you use both crystals. You might also want to try > 88.1 and 96 and see how they work as well. > > John S.
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