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Honored Contributor I
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Power Management in Cyclone V SOC

Hi Altera Team, 

 

We would like to whether all the power reduction techniques for HPS listed in the below link is implemented on bare metal(Power_optimisation.zip) for Cyclone V SOC development kit? 

https://www.altera.co.jp/documentation/iga1406135565764.html 

 

Various methods discussed in the link are listed below: 

 

hps method 1: fit code in cache  

hps method 2: processor standby modes and dynamic clock gating 

hps method 3: cpu1 in wfi/wfe or “standby loop” 

hps method 4: “suspend to ram”/sdram “self refresh” or “suspend to disk” 

hps method 5: lowering cpu frequency 

hps method 6: energy efficient ethernet 

hps method 7: usb power management 

hps method 8: unused peripherals in reset 

 

Please confirm. 

 

Thanks in advance 

 

Rabiammal A
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Honored Contributor I
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Hi, you can file a service request to Altera to confirm, but my suspicion is that ethernet and USB are probably not in baremetal (I've not seen baremetal drivers for both of these). I am not sure about the processor related power saving techniques though.

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Honored Contributor I
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--- Quote Start ---  

Hi, you can file a service request to Altera to confirm, but my suspicion is that ethernet and USB are probably not in baremetal (I've not seen baremetal drivers for both of these). I am not sure about the processor related power saving techniques though. 

--- Quote End ---  

 

 

Hi sunshine, 

 

Thanks for the reply.
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