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Re: EVAL - ADAU1452MINIZ

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     Hi Philip,

 

     Sorry you're experiencing this trouble.  The good news is it looks like we can clear it up quickly.

 

     I switched my board's self-boot switch to enable and duplicated your symptoms exactly -- it runs for one second, makes some loud "burp" noises and quits.  Actually the self-boot should be disabled when running from SigmaStudio using the USBi.  Only enable it when actually testing the chip's self-boot feature.  With the USBi and SigmaStudio connected, the chip boots directly from SigmaStudio via the USBi -- in this case, self-boot gets in the way.

 

     When you wish to test self-boot, first load the on-board EEPROM with your compiled project, then disconnect the USBi and power up or reset the board (with self-boot enabled now) to self-boot.  See page 17 of the user's manual.   On-screen controls don't work in this mode (whether the USBi is connected or not).  In an actual self-boot system, your custom board would have pots or buttons connected to the chip's MP pins to control user functions.

 

     I tried headphones on my -1452 board, it drives them OK at low volume.  Amplified "computer" speakers work really well.

 

 

     Hope you'll be "on the air" really soon!

 

     Bob


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