DSP EMIFA Clock not Generating

pramod kashyap

Hello,

External Clock for DSP is Been generating properly from Crystal of 60MHz,We have configured for SYSCLK7 as EMIFA Clock output,After Power Up Default Clock output is not generated i.e, 1/10 of CORECLK n/p.

How to Check if internal PLL of DSP is working Good.

Thanks,

Pramod

over 9 years ago

0 Senthilkumar Srinivasan over 9 years ago

TI__Mastermind 43660 points

Hello Pramod,

Could you please provide below information to support better on this.

What is the DSP part number you are using ?

Is this a custom board or TI EVM ?

Regards,

Senthil

0 pramod kashyap over 9 years ago in reply to Senthilkumar Srinivasan

Intellectual 615 points

Hello Senthil,

DSP Part Number we are using is -TMS320C6457

We are doing on our Customized board.

Thanks,

Pramod

0 Senthilkumar Srinivasan over 9 years ago in reply to pramod kashyap

TI__Mastermind 43660 points

Hello Pramod,

Thanks for sharing the information.

The default clock of EMIFA is 1/10 of the frequency after the PLL multiplier and not input CORECLK.

What is the multiplier value (PLLM) you set in the PLL intilaization ?

What is the level of GPIO[15] pin F23 ?

Are you using external clock AECLKIN for EMIFA ?

If you use SYSCLK7 for EMIFA, what is the value is the value of PLLDIV7 ?

What is the frequency you observed at AECLKOUT ?

Regards,

Senthil

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DSP EMIFA Clock not Generating