C6657 standby mode

RY9983

Hello.

I am looking for detail of standby mode in C6657.
Although there is overview in doc sprabi2c (P84), I can not find how to put into standby mode.
http://www.tij.co.jp/jp/lit/an/sprabi2c/sprabi2c.pdf

Do you have examples or more detail documents?

Best regards, RY

over 11 years ago

0 Raja over 11 years ago

TI__Guru* 81335 points

Hi RY,

I could not find any examples. But the data manual of C6657 describes how to enable/disable standby mode.

http://www.ti.com/lit/ds/symlink/tms320c6657.pdf

Section: 3.3.10 Power State Control (PWRSTATECTL) Register

Thanks.

0 RY9983 over 11 years ago in reply to Raja

Guru 10570 points

Rajasekaran-san,
Thanks for your advise.

When I just configure PWRSTATECTL register as 1, all of C6657 device is put on standby mode. Is that correct?
(There is no specific standby sequence.)

Although I attempted to measure power consumption during standby mode on the TMDSEVM6657LS, I can not find reasonable method.
How do you measure the power?

Best regards, RY

0 Raja over 11 years ago in reply to RY9983

TI__Guru* 81335 points

Hi RY,

Q: When I just configure PWRSTATECTL register as 1, all of C6657 device is put on standby mode. Is that correct?
(There is no specific standby sequence.)

From my understanding, Yes.

Q: Although I attempted to measure power consumption during standby mode on the TMDSEVM6657LS, I can not find reasonable method.
How do you measure the power?

Please refer below thread which may help you to measure.

http://e2e.ti.com/support/dsp/c6000_multi-core_dsps/f/639/t/106842.aspx

Thanks.

0 RY9983 over 11 years ago in reply to Raja

Guru 10570 points

Rajasekaran
Thanks!! I will check it.
Best regards, RY

0 RY9983 over 11 years ago in reply to RY9983

Guru 10570 points

Rajasekaran-san,

Hello.
May I have once more question?
When C6657 recover from standby mode, it must be reset or power off.
Is it correct?

Best regards, RY

0 Raja over 11 years ago in reply to RY9983

TI__Guru* 81335 points

Hi RY,

From my understanding, during Standby mode the cores should be reset state (INACTIVE).

Thanks.

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C6657 standby mode