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CMSIS DSP Library
Offline
Jagadeesh Konakalla
over 7 years ago
Note: This was originally posted on 27th November 2012 at http://forums.arm.com
Hi,
I am new user to CMSIS. I have gone through the DSP library function. I am interested in fixed point arithemetic.
As per the documentation, i have understood that Q7, Q15 and Q31 formats are only supported. Is that correct ?
I would like to multiply different Q formats. Example : For multiplication, input 1 is Q17, input2 is Q 27 and output required is Q19.
How can we use the DSP library functions such as
arm_mult_q31
for the example mentioned ?
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Offline
Jagadeesh Konakalla
over 7 years ago
Note: This was originally posted on 28th November 2012 at
http://forums.arm.com
I agree with your comments.
But in previous, we worked with IQmath library provided by TI. This IQ math library allows the user to multiply different Q formats and allows takes about rounding and saturation of the result.
My question whether this CMSIS DSP libarary provides the same capabilities as IQmath ?
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Offline
Jagadeesh Konakalla
over 7 years ago
Note: This was originally posted on 28th November 2012 at
http://forums.arm.com
I agree with your comments.
But in previous, we worked with IQmath library provided by TI. This IQ math library allows the user to multiply different Q formats and allows takes about rounding and saturation of the result.
My question whether this CMSIS DSP libarary provides the same capabilities as IQmath ?
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