Simon Ford / dsp

CMSIS DSP Library from CMSIS 2.0. See http://www.onarm.com/cmsis/ for full details

Dependents:   K22F_DSP_Matrix_least_square BNO055-ELEC3810 1BNO055 ECE4180Project--Slave2 ... more

src/Common/Include/math_helper.h@0:1014af42efd9, 2011-03-10 (annotated)

Committer:
simon
Date:
Thu Mar 10 15:07:50 2011 +0000
Revision:
0:1014af42efd9

        

        
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/* ----------------------------------------------------------------------





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* Copyright (C) 2010 ARM Limited. All rights reserved.  





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*  





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* $Date:        29. November 2010  





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* $Revision: 	V1.0.3  





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*  





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* Project: 	    CMSIS DSP Library 





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*





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* Title:	    math_helper.h





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* 





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*





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* Description:	Prototypes of all helper functions required.  





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*





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* Target Processor: Cortex-M4/Cortex-M3





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*  





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* Version 1.0.3 2010/11/29 





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*    Re-organized the CMSIS folders and updated documentation.  





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*   





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* Version 1.0.2 2010/11/11  





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*    Documentation updated.   





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*  





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* Version 1.0.1 2010/10/05   





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*    Production release and review comments incorporated.  





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*  





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* Version 1.0.0 2010/09/20   





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*    Production release and review comments incorporated.  





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*  





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* Version 0.0.7  2010/06/10   





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*    Misra-C changes done 





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* -------------------------------------------------------------------- */





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#include "arm_math.h"





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#ifndef MATH_HELPER_H





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#define MATH_HELPER_H





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float arm_snr_f32(float *pRef, float *pTest,  uint32_t buffSize);  





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void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples);





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void arm_provide_guard_bits_q15(q15_t *input_buf, uint32_t blockSize, uint32_t guard_bits);





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void arm_provide_guard_bits_q31(q31_t *input_buf, uint32_t blockSize, uint32_t guard_bits);





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void arm_float_to_q14(float *pIn, q15_t *pOut, uint32_t numSamples);





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void arm_float_to_q29(float *pIn, q31_t *pOut, uint32_t numSamples);





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void arm_float_to_q28(float *pIn, q31_t *pOut, uint32_t numSamples);





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void arm_float_to_q30(float *pIn, q31_t *pOut, uint32_t numSamples);





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void arm_clip_f32(float *pIn, uint32_t numSamples);





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uint32_t arm_calc_guard_bits(uint32_t num_adds);





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void arm_apply_guard_bits (float32_t * pIn, uint32_t numSamples, uint32_t guard_bits);





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uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t * pOut, uint32_t numSamples);





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uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t *pOut, uint32_t numSamples);





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uint32_t arm_calc_2pow(uint32_t guard_bits);





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#endif





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