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Problem about C6455 DSP Power On.



Hello, everyone.

I have a question about 6455 DSP, here is our situation: In first Power On, our designed DSP board need about 10 second from POR# de-asserted to PLL rising its frequency, but the 6455DSK board is ok, just need milliseonds to do this. And, our 6455 board and DSK have almost the same Code and same Hardware design. 

By the way, when we are using any other type of reset like CPU reset or Emulater reset, it seems to be  totally OK. And if we power on our DSP board then connect the dsp to the Code Composer Studio, it will be very fast have no such 10 second problem.  

So, could you please give me any i idea about what might be wrong with our board?

Thank you so much!

Best Regards,

Jin