TDA2PXEVM: How to fix CPU's operating frequency in TDA2P?

user6114649

Part Number: TDA2PXEVM

Hi,

I'm using TDA2P EVM and VisionSDK 3.07.

The operating frequency of CPU in TDA2P can be changed automatically according to it's load by default.

I want to fix this and so could you tell me how to fix the operating frequency.

I tried following command, but the file did not accepted my change.

# echo 1000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

Thanks,

Koji

0 Yordan Kamenov over 5 years ago

Hi Koji-san,

you need to set scaling governor to type 'ueerspace' first:

echo -n "userspace" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

and then set the desired frequency:

echo -n "<new_frequency> > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed

Please check those documents for further details:

Regards,

Yordan

0 user6114649 over 5 years ago in reply to Yordan Kamenov

Hi Yordan-san,

Thanks for your quick response and good advice.

This resolved my problem.

Thanks,

Koji

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