C6713 PLL Initialization

challenger

Hi,

I'm using C6713DSP and have a question about Flash Boot Code.
The question is about PLL initialization which is a part of the boot code.

Do I need to add the code which wait for PLLCSR.STABLE bit to be set before PLL initialization?

But I'm thinking that PLLCSR.STABLE bit will be set before CPU starts executing from address0,
so I think the code is unnecessary.Is it right?

over 14 years ago

0 Brad Griffis over 14 years ago

TI__Guru*** 125430 points

challenger said:
Do I need to add the code which wait for PLLCSR.STABLE bit to be set before PLL initialization?

Follow the procedure in Chapter 3 of the PLL User Guide. It's not necessary to look for that bit because the device is kept in reset internally until the specified number of clock cycles have elapsed at which time the STABLE bit is set and the device is released internally from reset. That's mentioned in Section 2.2 of the same guide.

0 challenger over 14 years ago in reply to Brad Griffis

Intellectual 370 points

Brad,

Thank you for answering my question.
I confirmed the User Guide which you taught and I understood.

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C6713 PLL Initialization