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ADuC845 own pcb problem

Question asked by SLA on Dec 16, 2010
Latest reply on Dec 22, 2010 by MMA

Hi,

I make my own ADuC845 pcb base on  Eval-ADuC845QS schematic and got following problems:

 

- current is 2 times higher compare to Eval board

- DAC 400Hz example works fine with 5.7V supply  but to program it I need 6.7V

- I type simple program utilize timers, interputs to generate a waveform on DAC but it generate only one period after power up? on Eval works fine.

 

Could you please advice where I could make a error?

 

Regards

Slawek

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