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Altera_Forum
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11 years ago

HPS power consumption

If I use only FPGA part of Cyclone V SE device, the HPS is in reset state with CPU0 and CPU1 or I should load code to sleep CPU1? And if HPS is not used the default frequency is 800 MHz? Should I ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Thanks for clarifying, now I begin to understand, then we have the same use-case as flz47655. Indeed we want to use only the FPGA part to save power (in our case: to avoid heat).

Our FPGA engineers (I'm from software), however, told me that a CycloneV can't be started up without the pre-loader - which is HPS software off course. Is this true ? Or can everything, that is normally done by the pre-loader, also be done in a different way ? This would be really awesome because it would make things much easier for us.

Thanks a lot.