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Energy Profiling of an ARM7 core
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Ram Prasadh
over 7 years ago
Note: This was originally posted on 8th July 2013 at http://forums.arm.com
Hi
I want to make energy profiling and analysis of a ARM7 core. I have some doubts regarding this. May be my doubts are silly.
#1 :: I don't have a development board with myself and so, I intend to make a virtual simulation of the core. I have a DS-5 community edition installed in my windows 7 system.
Please tell me whether I would be able to do a virtual Simulation with an external hardware connected?. I came to know that about the ARMulator. Can it be invoked in the DS-5 for a virtual simulation of a ARM7.? If it can be,what should I do to use the ARMulator.? Firstly , can the DS-5 be used for the above mentioned purpose?
#2 :: How can I test the core by using Benchmark codes like Dhrystone marking in DS-5?
Regards,
RamPrasadh N.
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Scott Douglass
over 7 years ago
Note: This was originally posted on 10th July 2013 at
http://forums.arm.com
I don't really understand what you mean by "virtual Simulation with an external hardware connected", so I may be missing the point.
#1: The full version of DS-5 comes with an FVP (Fixed Virtual Platform) model of a quad core Cortex-A9. You can use it to run code built for ARM7 (although I'm not sure if the old BE8 is supported by Cortex-A9). But the model does not do cycle counts nor power. The model is not included in the Community Edition, you'll need to get the eval of the full version. There is a separate Fast Models product that can produce custom models (different processors, different peripherals) that DS-5 can connect to. DS-5 does not support ARMulator.
If you have a real hardware running Linux or Android and you have (or can make) an appropriate power test point, you can use Streamline and the ARM Energy Probe (or a National Instruments DAQ) to make power measurements.
#2: The full version of DS-5 includes a number of examples which you could use to as a basis for building a benchmark.
Note that Community Edition does not include bare-metal (no OS) use; it only supports targets running Linux or Android. The full version can do bare-metal, too.
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Scott Douglass
over 7 years ago
Note: This was originally posted on 10th July 2013 at
http://forums.arm.com
I don't really understand what you mean by "virtual Simulation with an external hardware connected", so I may be missing the point.
#1: The full version of DS-5 comes with an FVP (Fixed Virtual Platform) model of a quad core Cortex-A9. You can use it to run code built for ARM7 (although I'm not sure if the old BE8 is supported by Cortex-A9). But the model does not do cycle counts nor power. The model is not included in the Community Edition, you'll need to get the eval of the full version. There is a separate Fast Models product that can produce custom models (different processors, different peripherals) that DS-5 can connect to. DS-5 does not support ARMulator.
If you have a real hardware running Linux or Android and you have (or can make) an appropriate power test point, you can use Streamline and the ARM Energy Probe (or a National Instruments DAQ) to make power measurements.
#2: The full version of DS-5 includes a number of examples which you could use to as a basis for building a benchmark.
Note that Community Edition does not include bare-metal (no OS) use; it only supports targets running Linux or Android. The full version can do bare-metal, too.
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