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AU1450 Crashing with SPI??

Question asked by billlance on Jul 27, 2016
Latest reply on Jul 28, 2016 by billlance


My AU1450 is working great EXCEPT that it crashes once in a while (every 5 to 10 minutes, maybe) when I'm writing control coefficients via the SPI slave port.   The SPI control works; I can load the code, and control the variables, it's just that the thing crashes sometimes.  When it crashes, the CLK OUT goes from 12.288 MHz to half that (6.1MHz), and all audio I/O stops.   If I don't write any SPI stuff (other than loading the code and starting it), it will run forever.  I've looked very carefully at the SPI lines for noise, timing, etc. and everything looks fine.


Thanks in advance for any help!