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Hi, I am currently trying out some CMSIS DSP examples. Particularly the FFT example. I have added the required libraries files. But I am repeatedly getting the following error.
undefined reference to `arm_bitreversal_32'
I have also included arm_cortexM4lf_math.lib file. But the error persists. Can someone help me with this.
I tried importing the arm_bitreversal_32.S file. Still no success.
Is it actually building that and generating a .o object? Is the linker pulling that?
How about command line defines, what options/defines are being passed to the compiler/linker?
Check the .S file for defines it might be using to selectively build portions.
Can it use _RBIT or some equivalent intrinsic, is that predicated on a command line define? Review where arm_bitreversal_32 is called, and dependencies/predication there.