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ADAU1452 too long selfboot time...

Question asked by Toino on Nov 24, 2014
Latest reply on Nov 28, 2014 by Toino

With two FIR blocks of 8192-taps, the booting time is about 50s !! 

Reading the manual, it seems that it is supposed that the E2prom starts to be accessed at low speed that it is later increased (?).

However, measuring the MOSI (pin27) and SCK (pin28) signals, it seems that the frequency is constant in all the process and about 12.5KHz.

 

Is there a way to accelerate  the E2prom reading during self-boot? About 1min is too much for any application...

 

Any help will be very appreciated.

 

Thank you

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