What are available Jetson AGX Orin memory frequency?

Hi,
I’m trying to change jetson AGX Orin memory frequency with file “/sys/kernel/debug/bpmp/debug/clk/emc/rate”. But I found it can only set 2133000000 or 3199000000, can’t set value between it. For example when I set 3000000000, it will set as 3199000000.
Would you please tell me all available memory frequency?
Thanks!
BR/Tim

Hi ckt1010,

Are you using the devkit or custom board for AGX Orin?
What’s your Jetpack version in use?

Please use PowerEstimator to create custom power mode for the desired EMC frequency.
It seems the values between 2133MHz and 3199MHz are invalid.

Hi KevinFFF,
I use custom board and Jetpack version is 5.1.2.
Thanks

I’ve confirmed with internal that only 2133MHz and 3199MHz are valid to be configured,
and we don’t suggest to modify EMC frequency from sysfs node.

Hi KevinFFF
Since change Power will also change other frequency, which I don’t expect. Would you please tell me why you don’t suggest modify sysfs? Or is there any suggested way to only change EMC frequency?
Thanks!

Since you don’t know the spec and limitation for every frequency, you might configure the wrong value through sysfs.
You could just use Power Estimator to create a custom power mode for your use case with the desired EMC frequency. This is what we suggested.

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