Linux/AM4376: 24.576MHz output clock

Dan-E

Intellectual 290 points

Part Number: AM4376

Tool/software: Linux

Hi,

Am trying to get a 24.576MHz clock out from one of CLKOUT1 or 2. I am using 24MHz to the Sitara.

Could you please help me to see how this is possible?

/BR

over 8 years ago

0 Biser Gatchev-XID over 8 years ago

TI__Guru**** 393215 points

See section 6.6.14 in the AM437x TRM Rev. G. This may only be possible if you source the CLKOUT signal from the EXTDEV_PLL. This PLL is described in section 6.6.12.

0 Dan-E over 8 years ago in reply to Biser Gatchev-XID

Intellectual 290 points

I am still having trouble seeing how to get 24.576 MHz from the Sitara's CLKOUT1 or 2 (using 24MHz crystal). Please advise.
/Thanks in advance

0 Biser Gatchev-XID over 8 years ago in reply to Dan-E

TI__Guru**** 393215 points

You must configure the EXTDEV_PLL for the desired frequency and select it as the clock source for the desired CLKOUT signal.

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Linux/AM4376: 24.576MHz output clock