AM3352: How to monitor the output clock of MPU PLL

Sh.Sasaki

Guru 13625 points

Part Number: AM3352

Hi everyone,

I want to check the output clock of the MPU PLL.

Is there any better way?

If AM3352 can output A8-Clock to the CLKOUT pin, it can monitor, but AM3352 can not do it.

Best regards,

Sasaki

over 6 years ago

0 Pavel Botev over 6 years ago

TI__Guru**** 170625 points

Hi Sasaki,

No, AM335x device can not export MPU DPLL clock to CLKOUT2 pin, thus can not be monitored with scope.

The only way I see is to dump the MPU PLL registers, and according to the values there, you can calculate the Cortex-A8 speed. You can use the omapconf tool to automate the process.

Regards,
Pavel

0 Sh.Sasaki over 6 years ago in reply to Pavel Botev

Guru 13625 points

Hi Pavel-san,

Thank you for your support!
I will check it.
I hope the excel tool is ready.

Best regards,
Sasaki

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AM3352: How to monitor the output clock of MPU PLL