library compiled for stm32F4 series compatible for custom Cortex M4?

[dwarakanath]

Edited to clarify that this is specifically STM32F4 (originally just said "Fx").

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I've a library .a file compiled using STM32CubeIDE for STM32F4 series.

Is the .a file be compatible to Custom ARM Cortex M4 to use in IAR Embedded Work bench?

[Andrew Neil]

There's two independent questions there:

1. Is the .a library compatible with this "Custom ARM Cortex M4" ?
   I guess if the Custom part has the exact same options as in the STM32Fx, it should work.
    
2. Can IAR use a GCC .a library created by CubeIDE ?
   You would have to ask IAR that one:
   https://www.iar.com/support 
   

If you have the source, surely rebuilding from source would be the safest option?

[KnarfB]

Fx can be Cortex-M0 or Cortex-M4.

"Custom  ARM Cortex M4" could have other HW features implemented than STM32.

Also check the floating point options which are used on either side.

hth

KnarfB

[Andrew Neil]

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@KnarfB wrote:

Fx can be Cortex-M0 or Cortex-M4.

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Also M3, M33, M7, M55:

@dwarakanath so did you mean F4 ?

[dwarakanath]

Hi @Andrew Neil 

Yes. F4 here in my case.

Also the .a file doesn't have any peripheral related inclusions. Its purely some algo part.

@KnarfB 

No float support in either the cores.

[Andrew Neil]

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@dwarakanath wrote:

Yes. F4 here in my case.

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OK - I'll edit the title to clarify.

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@dwarakanath wrote:

Also the .a file doesn't have any peripheral related inclusions. Its purely some algo part.

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But there are still optional features & configuration options in the core itself.

You'd have to make sure they all match.

[TDK · Accepted solution]

Yes, if it doesn't include anything STM32F4-specific, it should work on other Cortex-M4 processors. Something like a DSP library would be compatible.

[dwarakanath]

Let me check and update 

[dwarakanath]

It didn't work. some stack related linking error popped up. I think this is compiler dependent.

Thanks folks for the encouraging support.