Hi,

The file system provides abilities to observe and manage the cpu frequency. It is only necessary to go to /sys/devices/system/cpu/cpu0/cpufreq# folder. There you can check the current cpu frequency or all available frequencies and any more info. For example:

root@dm37x-evm:/sys/devices/system/cpu/cpu0/cpufreq# cat cpuinfo_cur_freq
1000000

root@dm37x-evm:/sys/devices/system/cpu/cpu0/cpufreq# cat scaling_available_frequencies
1000000 800000 600000 300000

BR

Tsvetolin Shulev

Thanks Tsvetolin Shulev, As I was saying I am working on BareMetal. I am not using any Linux, I directly burn raw my program on to the board .  It is possible to know the operating clock frequency or set frequency using assembly language or are there any C libraries to access the C libraries.

I'm wondered if you are using BareMetal OS on the BeagleBoard. I can not find any releases of BareMetal OS for ARM architecture. You could look at the official web site for support about BareMetal OS - http://www.returninfinity.com/baremetal.html. You can download the available documentation from from the link: http://www.returninfinity.com/baremetal-docs.html

BR

Tsvetolin Shulev

I am actually not using a BareMetal OS. I was not clear, By BareMetal I meant I am running without any OS. I am just writing programs(ex: FFT ) in ARM-DS5 -compiling them then executing them from the SDRAM. All my programs are executing properly and I am also able debug properly .  Are there any low level Libraries or any C sample files in C or assembly that could help me in accessing the hardware directly. I want to run without any OS so as to achieve maximum performance for the purpose of Benchmarking.   Here is some code for OMAP processors https://code.google.com/p/puppybits/source/browse/   but the code doesnot have much scope. 

Please help me if I can get some headers or something very basic which provides hardware level access and control. Is it possible to get these sort of files (atleast some basic code)form any OS code? I am  finding it hard and I cannot find documentation providing configuration details.

Thanks ,

Vamsi

Dear Vamsi,

I am also interested into writing some bare metal applications.

Did you succeed to get you (bare metal application) code up and running?

If so, could you post here what is needed (configuration of peripherals, etc)?

Regards, 

D.K.