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RVDS 4.0 Doubts

Dave Mathew over 12 years ago

Dave Mathew over 12 years ago

Note: This was originally posted on 5th May 2010 at http://forums.arm.com

Thanks for your replay

Which VFP is selected for Cortex A9?. There is a list of options available.

Once i choose VFPv3 then my application behaves with an infinite nature when i profile it using RTSM - Emulation Base Board Cortex - A9MPX1

but without using neon instruction the application working fine In the Same Emulator

Rgds
Dave
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Dave Mathew over 12 years ago
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Martin Weidmann over 12 years ago

Note: This was originally posted on 5th May 2010 at http://forums.arm.com

My experience is mostly A9 (not A8), but I believe the problem is the --fpu=None in your compile and link lines. You can't have NEON without VFP. It should build if you don't specify a --fpu flag (compiler with then use the default for the core selected with --cpu).

Is there a particular reason why you added this flag?
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Scott Douglass over 12 years ago

Note: This was originally posted on 5th May 2010 at http://forums.arm.com

Once i choose VFPv3 then my application behaves with an infinite nature when i profile it using RTSM - Emulation Base Board Cortex - A9MPX1
but without using neon instruction the application working fine In the Same Emulator

There is some initialization code needed that you may be missing see these threads: [url="http://forums.arm.com/index.php?showtopic=14155"]http://forums.arm.com/index.php?showtopic=14155[/url] or [url="http://forums.arm.com/index.php?showtopic=14121"]http://forums.arm.com/index.php?showtopic=14121[/url]
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